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Tytuł:
Characterization of a solar cell by varying illumination
Autorzy:
Kołodziej, Andrzej
Kołodziej, Michał
Powiązania:
https://bibliotekanauki.pl/articles/1402388.pdf
Data publikacji:
2020
Wydawca:
Państwowa Wyższa Szkoła Zawodowa w Tarnowie
Tematy:
thin films
solar cell measurement
silicon
I–V characteristic
varying illumination
cienkie warstwy
pomiar ogniw słonecznych
krzem
oświetlenie zmienne
Opis:
This work aims to confirm that the single-diode model of a monocrystalline cell can be used successfully also for thin-film solar cells when their basic parameters are calculated using the method of changing illumination. The authors describe the experimental procedure, in which I–V curves of thin-film solar cells are measured when illumination levels are changing. In experiments, a fully reflective 500 W solar simulator is used as an excellent broadband white light source, which provides the range of 0.01–10 Sun settings.
Źródło:
Science, Technology and Innovation; 2020, 10, 3; 8-14
2544-9125
Pojawia się w:
Science, Technology and Innovation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of shading on solar cell electrical parameters
Autorzy:
Swatowska, B.
Panek, P.
Powiązania:
https://bibliotekanauki.pl/articles/173520.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
solar cells
shading
electrical parameters
efficiency
Opis:
Availability of light to solar cells is crucial for the efficiency of photovoltaic systems. For this reason, even partial shading can result in significant reduction of generated electric power (loss of current). This paper examines the changes in the efficiency of multicrystalline silicon solar cells which are caused by different kinds of shading. Full and partial shading were simulated by the use of three types of shutter-foils printed in a gray and black scale. The measurements of current-voltage characteristics show that totally or partially shaded modules can drastically reduce the generated power. Short circuit current decreases from about 8100 to 100 mA that in the case of the series connection of cells in a module, lead to the shift of the point of the maximum power and finally to the considerable reduction of nominal system photovoltaic power.
Źródło:
Optica Applicata; 2017, 47, 2; 319-323
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temperature Effect on Performance of Different Solar Cell Technologies
Autorzy:
Adeeb, Jehad
Farhan, Alaa
Al-Salaymeh, Ahmed
Powiązania:
https://bibliotekanauki.pl/articles/124356.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
solar cell
photovoltaics
temperature effect
multicrystalline silicon solar cell
amorphous silicon solar cell
monocrystalline
Opis:
One of the main parameters that affect the solar cell performance is cell temperature; the solar cell output decreases with the increase of temperature. Therefore, it is important to select the proper solar cell technology that performs better at a specified location considering its average temperatures. In addition, the solar cell performance is directly reflected on the overall economics of the project. This paper is proposed to evaluate the variations in the performance of different solar cell technologies related to the temperature in Amman, Jordan. Field data of weather station and three PV systems (Poly-crystalline, Mono-crystalline and Thin-film) of identical design parameters were collected from Test Field Project at Applied Science Private University, Shafa Badran, Amman, Jordan. These data were analysed in the following way. estimated specific energy yield (kWh/kWp) for the three different PV systems was calculated depending on the measured value of solar irradiance and technical specifications of the installed solar panels and inverters, then the actual energy yield at different temperatures over one year was compared with the estimated value, so the deviations could be determined and actual temperature coefficients for energy yield could be calculated, knowing that the three PV Systems have identical design parameters (tilt angle, azimuth angle, type and dimensions of mounting structure and inverter size) and same cleaning method and schedule. It was found that the thin-film solar panels are less affected by temperature with temperature coefficient of -0.0984%, and -0.109%, -0.124% for Mono-crystalline and Poly-crystalline respectively. These results can be implemented in the preliminary design steps, specifically in the selection of the solar cell technology to be installed in a specific location.
Źródło:
Journal of Ecological Engineering; 2019, 20, 5; 249-254
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Higher Solar Cell Efficiency Achieved with ZnO/Si heterojuction
Autorzy:
Ayad, jumaah kadhim
Muneer, H. Jaduaa Alzubaidy
Abd, Ahmed N.
Powiązania:
https://bibliotekanauki.pl/articles/1161880.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
AFM
XRD
ZnO/Si
chemical method
conversation efficiency
solar cell
Opis:
In this work, the zinc oxide nanoparticles were prepared chemically and deposited by casting style on glass bases and treated thermally at a temperature of 600 °C. The study focused on Optical and structural properties of thin films. An optical advantages of Zinc Oxide (ZnO) were characterized by using ultraviolet visible Spectroscopy. And the structure by using X-Ray Diffraction and (AFM). The optical advantages of thin films were studied by recording the transmittance spectra of wavelengths range (300-900 nm). The energy gap was calculated using tauc equation and is found (3 eV). I-V properties of the solar cell under light at 40 mW/cm2 flounce was investigated. The open circuit Voltage (Voc) was 33 and Short-circuit density (Isc) was 0.017 mA. This measurements show that the fill factor (F.F) and conversation efficiency (η), were 55% and 9.9% respectively.
Źródło:
World Scientific News; 2018, 112; 226-234
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Solar Cell Emitters Fabricated by Flash Lamp Millisecond Annealing
Autorzy:
Prucnal, S.
Shumann, T.
Skorupa, W.
Abendroth, B.
Krockert, K.
Möller, H.
Powiązania:
https://bibliotekanauki.pl/articles/1503796.pdf
Data publikacji:
2011-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
88.40.jj
78.55.-m
78.30.Am
78.55.Ap
Opis:
Phosphorus ion implantation was used for the emitter formation in mono- and multicrystalline silicon solar cells. After ion implantation the silicon is strongly disordered or amorphous within the ion range. Therefore subsequent annealing is required to remove the implantation damage and activate the doping element. Flash-lamp annealing offers here an alternative route for the emitter formation at overall low thermal budget. During flash-lamp annealing, only the wafer surface is heated homogeneously to very high temperatures at ms time scales, resulting in annealing of the implantation damage and electrical activation of phosphorus. However, variation of the pulse time also allows to modify the degree of annealing of the bulk region to some extent as well, which can have an influence on the gettering behaviour of metallic bulk impurities. The μ-Raman spectroscopy showed that the silicon surface is amorphous after ion implantation. It could be demonstrated that flash-lamp annealing at 800°C for 20 ms even without preheating is sufficient to recrystallize implanted silicon. The highest carrier concentration and efficiency as well as the lowest resistivity were obtained after annealing at 1200°C for 20 ms both for mono- and multicrystalline silicon wafers. Photoluminescence results point towards P-cluster formation at high annealing temperatures which affects metal impurity gettering within the emitter.
Źródło:
Acta Physica Polonica A; 2011, 120, 1; 30-34
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fabrication and Characterization of ZnO/p-Si Heterojunction Solar Cell
Autorzy:
Habubi, Nadir F.
Mousa, Abdulazeez O.
Powiązania:
https://bibliotekanauki.pl/articles/1193961.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
chemical spray pyrolysis
heterojunction solar cell
n-ZnO/p-Si
Opis:
Zinc oxide thin films was deposited by chemical spray pyrolysis (CSP) at 400 °C substrate temperature and different thickness (60, 80, and 100) nm on the texturized p-Si wafer to fabricate ZnO/p-Si heterojunction solar cell. Structural, optical, electrical and photovoltaic properties are investigated for the samples. XRD analysis reveals that all the as deposited ZnO films show polycrystalline structure, without any change due to increase of thickness. Average diameter calculated from AFM images shows an increase in its value with increasing thickness, ranging from 59.82-95.7 nm. The optical reflections for samples are measured using UV-Vis spectrophotometer. Photoluminescence (PL) spectra of (CSP) grown ZnO/p-Si with different thickness were used to study the energy gap. The electrical properties of heterojunction were obtained by I-V (dark and illuminated) and C-V measurement. I-V characteristic of the ZnO/p-Si heterojunction shows good rectifying behavior under dark condition. The ideality factor and the saturation current density was calculated. Under illuminated the photovoltaic measurements (open-circuit voltage (Voc), short-circuit current density (JSC), fill factor (FF), and quantum efficiencies are calculated for all samples. The built- in potential (Vbi), carrier concentration and depletion width are determined under different thickness from C-V measurement.
Źródło:
World Scientific News; 2015, 18; 78-92
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fabrication of Dye Sensitized Solar Cell Based on Natural Photosensitizers
Autorzy:
Nirmala, M.
Sahana, S.
Iswarya, B.
Maruvarasi, K.
Jenita, A. Adline
Kavitha, B.
Powiązania:
https://bibliotekanauki.pl/articles/1031877.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Efficiency
FTIR spectroscopy
Functional
Natural Dyes
Solar cell
nanocrystalline materials
nanocrytalline titanium dioxide
Opis:
Dye Sensitized solar cells were fabricated using with natural extracts and TiO2 is used as a semiconducting layer. The layer of nanocrytalline titanium dioxide was deposited on conductive side of the transparent Fluorine doped Tin Oxide (FTO) glass plate and the other side of the plate is coated with graphite. Voltage and Current values are measured for natural dyes coated FTO plate and I-V characteristic curves of all fabricated cells were drawn and analyzed. The highest power conversion efficiencies of Blueberry (0.79872%) and Beetroot (0.745813 %.) dyes were achieved among 10 dyes. The functional groups of Beetroot and Turmeric natural dyes were confirmed under FTIR spectroscopy. The ease and cost efficiency of the overall fabrication process, extensive availability of these fruits/juices render them novel and low-cost candidates for Solar cell applications.
Źródło:
World Scientific News; 2020, 149; 128-139
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modern third generation solar photovoltaic technology: dye sensitized solar cell
Autorzy:
Banne, Chiranjeev
Powiązania:
https://bibliotekanauki.pl/articles/1819189.pdf
Data publikacji:
2020
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
photovoltaic
dye sensitized solar cell
DSSC
silicon photovoltaic cell
solar energy
fotowoltaika
barwnikowe ogniwa fotowoltaiczne
fotoogniwo krzemowe
energia słoneczna
Opis:
Depleting conventional energy resources are forcing the world to search for new and renewable energy resources. Solar energy is one of the potent and abundant energy resource .To use the solar energy to its fullest along with conventional technology has specific limitations. These limitations can be eliminated by use of Dye Sensitized Solar Cell (DSSC). DSSC can be seen as promising future technology. It is advantageous over Silicon (Si) based Photovoltaic (PV) cell in terms cost, easy manufacturing, stability at higher temperature, aesthetics, etc. Also it works in indoor conditions i.e. diffused sunlight which nearly not feasible with conventional PV cells. Now Research and Development Departments of many countries like Japan, Germany, USA, Switzerland, India, China and many firms like G-Cell, Oxford PV, Sony, TATA-Dyesol are working on DSSC to improve its various aspects so as to make it more applicable in various conditions. The paper will discuss the concept, construction, working of DSSC. Also it will illustrate current applications of DSSC.
Źródło:
Journal of Mechanical and Energy Engineering; 2020, 4, 2; 173--178
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Noise and optical spectroscopy of single junction silicon solar cell
Autorzy:
Skvarenina, L.
Macku, R.
Powiązania:
https://bibliotekanauki.pl/articles/220371.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
non-destructive diagnostics
c-Si solar cells
1/f noise
electroluminescence
lock-in IR thermography
Opis:
Noise spectroscopy as a highly sensitive method for non-destructive diagnostics of semiconductor devices was applied to solar cells based on crystalline silicon with a view to evaluating the quality and reliability of this solar cell type. The experimental approach was used in a reverse-biased condition where the internal structure of solar cells, as well as pn-junction itself, was electrically stressed and overloaded by a strong electric field. This gave rise to a strong generation of a current noise accompanied by local thermal instabilities, especially in the defect sites. It turned out that local temperature changes could be correlated with generation of flicker noise in a wide frequency range. Furthermore, an electrical breakdown in a non-stable form also occurred in some specific local regions what created micro-plasma noise with a two-level current fluctuation in the form of a Lorentzian-like noise spectrum. The noise research was carried out on both of these phenomena in combination with the spectrally-filtered electroluminescence mapping in the visible/near-infrared spectrum range and the dark lock-in infrared thermography in the far-infrared range. Then the physical origin of the light emission from particular defects was searched by a scanning electron microscope and additionally there was performed an experimental elimination of one specific defect by the focused ion beam milling.
Źródło:
Metrology and Measurement Systems; 2018, 25, 2; 303-316
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Electromotive Force Dependence on the Polycrystalline Silicon Solar Cell Illuminance
Autorzy:
Jukna, A.
Miškinis, P.
Valuntaitė, V.
Bogdanovičius, A.
Powiązania:
https://bibliotekanauki.pl/articles/1400558.pdf
Data publikacji:
2015-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
88.40.H-
88.40.jj
88.40.hj
88.40.fc
Opis:
The impact of illuminance on changes of the solar cell electromotive force is analyzed. A mathematical model for a solar cell electromotive force dependence on illuminance is presented. For this purpose, a selection of experimental data trend function was carried out, and the Pearson correlation coefficients were established. The most optimal results were obtained in case of an exponential function with the strongest correlation ($R^2$=0.983). The analysis has shown that at 100 W/m^2 illuminance the electromotive force saturation is obtained (the electromotive force changes insignificantly and fluctuates at around 2 V), which indicates that upon reaching such an illuminance a solar cell operates at maximum efficiency. A first-order differential equation satisfied by the trend function has been compiled. When interpreting illuminance as an evolution variable, the proposed mathematical model can be interpreted as a dynamical system. The deviation frequency spectrum of the measurement values with respect to the theoretical prediction is analyzed.
Źródło:
Acta Physica Polonica A; 2015, 127, 6; 1711-1716
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metal-titanium oxide / quantum dot porous silicon / silicon-metal solar cell
Autorzy:
Abd, Ahmad Naji
Mishjil, Khudheir A.
Abdulsada, Ali Hamid
Habubi, N. F.
Powiązania:
https://bibliotekanauki.pl/articles/1177996.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
AFM
FTIR
TiO2
X-Ray diffraction
XRD
electrochemical etching p-type silicon wafer
nanocrystalline porous silicon
Opis:
In this paper, the nanocrystalline porous silicon (PSi) films are prepared by electrochemical etching of p-type silicon wafer with current density 7 mA/cm2 and etching times on the formation nano-sized pore array with a dimension of around different etching time. The films were characterized by the measurement of XRD, FTIR spectroscopy and atomic force microscopy properties (AFM). We have estimated crystallites size from X-Ray diffraction about nanoscale for porous silicon and Atomic Force microscopy confirms the nanometric size Chemical fictionalization during the electrochemical etching show on the surface chemical composition of PS. The etching possesses inhomogeneous microstructures that contain a-Si clusters (Si3–Si–H) dispersed in amorphous silica matrix. From the FTIR analyses showed that the Si dangling bonds of the as-prepared PS layer have large amount of Hydrogen to form weak Si–H bonds. The atomic force microscopy investigation shows the rough silicon surface, with increasing etching process (current density and etching time) porous structure nucleates which leads to an increase in the depth and width (diameter) of surface pits. Consequently, the surface roughness also increase.
Źródło:
World Scientific News; 2018, 96; 134-148
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soft Chemistry - Synthesis of Nano-Titanium-Doped-Tellerium-Cadmium for Solar Cell Applications
Autorzy:
Elsabawy, Khaled M.
Powiązania:
https://bibliotekanauki.pl/articles/1192983.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Sol-Gel
Hydrolysis
AFM
XRD
Microstructure
SEM
Opis:
Soft chemistry procedures through sol–gel technique has applied to synthesize nano- Ti-doped CdTe composite. Gels were synthesized by the hydrolysis of a complex solution of Si(OC2H5)4, Cd(CH3COO)2•2H2O, Ti(CH3COO)4 and Te were heated from 350 to 600 °C in a H2─N2 atmosphere to form fine cubic CdTe doped crystals. The size of CdTe crystals, determined from the line broadening of X-ray diffraction pattern, increases from 6 to 21 nm in diameter with increasing heat-treatment temperature. Micro-structural features of Ti-doped CdTe crystals were characterized by both of AFM and SEM investigations . The analysis of micro-structural micrographs of both of SEM and AFM indicated that titanium additions improved the crystal growth of grain towards more lower grain size which ranged in between 1.4-2.5 μm while 0.67 μm through Scherrer’s calculations.
Źródło:
World Scientific News; 2016, 36; 61-72
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of hybrid Ge QDs/Si nanowires solar cell with improvement in cell efficiency
Autorzy:
Olyaee, S.
Farhadipour, F.
Powiązania:
https://bibliotekanauki.pl/articles/173979.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
nanowire
absorption
FDTD
hybrid structure
thin-film
cylindrical quantum dots
Opis:
In this paper, the structure of a high-efficiency solar cell is presented by using a combination of quantum dots of germanium arrays and silicon nanowires on a thin film silicon layer. Due to the low absorption coefficient of silicon, this type of solar cell does not have high efficiency. According to the capability of the quantum structure in absorbing the incident photons and the generation of electron-hole pairs, this structure is proposed. Moreover, nanowires as an appropriate suggestion are applied in our work aiming to improve light scattering and optical photon absorption for the generation of carriers. Both of the electrical and optical characteristics of the solar cell are calculated by using a finite-difference time-domain method. Owing to the change of the nanowire length and increasing the number of quantum dot in our work, maximum power absorption is achieved. The achieved results provide a considerable improvement in efficiency and short-circuit current density. The efficiency is improved up to 17.5% and the short-circuit current density in the active layer of thickness 1170 nm has been provided to be 42.6 mA/cm2. The open circuit voltage for this cell is calculated to be 0.47 V. The achieved results provide a considerable improvement in efficiency and short-circuit current density in comparison with previously published method.
Źródło:
Optica Applicata; 2018, 48, 4; 633-645
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of natural dyes for the fabrication of dye-sensitized solar cell: a review
Autorzy:
Bhargava, Cherry
Sharma, Pardeep Kumar
Powiązania:
https://bibliotekanauki.pl/articles/2086868.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
DSSC
dye-sensitized solar cell
efficiency
natural dye
performance
synthetic dye
ogniwo słoneczne uczulane barwnikiem
wydajność
barwnik naturalny
barwnik syntetyczny
Opis:
The increasing concern for worldwide energy production is the result of global industrialization and decreasing energy resources. Despite the cost factor, solar energy continues to become more popular due to its long-term nature as a resource and growing conversion efficiency. A dye-sensitized solar cell converts visible light into electricity. The efficient use of dye as a sensitizer is the critical factor in enhancing the performance of the dye-sensitized solar cell. Natural dyes are found in abundance in leaves, flower petals, roots, and other natural resources. Due to the advantages of natural dyes such as cost-effectiveness, the simpler extraction process, and being environmentally friendly, etc., researchers are working extensively to replace synthetic dyes with natural ones. This paper highlights the various types of natural dyes and their effect on the efficiency of the dye-sensitized solar cell.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 6; e139319, 1--12
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation on silicon solar cell capacitance and its dependence on both temperature and incidence angle
Autorzy:
Sané, M
Barro, F I
Powiązania:
https://bibliotekanauki.pl/articles/102664.pdf
Data publikacji:
2014
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
vertical junction
capacitance
temperature
incidence angle
Opis:
The aim of this work is to investigate a theoretical study of a vertical junction silicon solar cell capacitance under monochromatic illumination. By solving the continuity equation and using a one dimensional model in frequency modulation, we derive the analytical expressions of both excess minority carrier density and photovoltage. Based on these expressions, the solar cell capacitance was calculated; we then exhibited the effects of both temperature and incidence angle on the solar cell capacitance.
Źródło:
Advances in Science and Technology. Research Journal; 2014, 8, 24; 9-12
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
DFT studies on the electronic structures of 4-methoxybenzonitrile dye for Dye-Sensitized Solar Cell
Autorzy:
Prakasam, A
Sakthi, D
Anbarasan, P.M.
Powiązania:
https://bibliotekanauki.pl/articles/412205.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Dye sensitizer
density functional theory
electronic structure
absorption spectrum
Opis:
The geometries, electronic structures, polarizabilities and hyperpolarizabilities of organic dye sensitizer 4-methoxybenzonitrile was studied based on ab initio HF and Density Functional Theory (DFT) using the hybrid functional B3LYP. Ultraviolet-visible (UV-Vis) spectrum was investigated by Time Dependent DFT (TDDFT). Features of the electronic absorption spectrum in the visible and near-UV regions were assigned based on TDDFT calculations. The absorption bands are assigned to π→π* transitions. Calculated results suggest that the three excited states with the lowest excited energies in 4-methoxybenzonitrile is due to photoinduced electron transfer processes. The interfacial electron transfer between semiconductor TiO2 electrode and dye sensitizer 4-methoxybenzonitrile, is due to an electron injection process from excited dye to the semiconductor’s conduction band. The role of nitro group in 4-methoxybenzonitrile in geometries, electronic structures, and spectral properties were analyzed.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 7, 1; 8-22
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fluorine-Doped SnO2 Thin Films in Solar Cell Applications. Morphological, Optical and Electrical Properties
Autorzy:
Lisnic, Petru
Hrostea, Laura
Leontie, Liviu
Girtan, Mihaela
Powiązania:
https://bibliotekanauki.pl/articles/27313873.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
fluorine tin oxide
FTO
thin films
spray pyrolysis
solar cells
Opis:
This study examines the optimal parameters for obtaining fluorine-doped SnO2 (FTO) films with promising potential for photovoltaic applications. Due to its properties, tin oxide is used in a wide range of technologies, among which the manufacture of solar cells is one of the most important. Being doped with fluorine, tin dioxide becomes a good transparent and conductive electrode, suitable for solar cell applications. The chemical stability and low cost of the doped SnO2 makes it an advantageous alternative to tin-doped indium oxide (ITO). Among the most important characteristics of FTO thin films are high photoconductivity under sunlight irradiation and strong UV absorption. The SnO2 compound, doped with fluorine, exhibits a considerable chemical and physical stability, good electrical conductivity and high transmission (over 85%) in the visible range. The spray pyrolysis technique is the most preferable and efficient deposition method of fluorine-doped SnO2 thin films. This work aims to identify the optimal parameters for the spray pyrolysis of SnO2:F films and to analyze the morphology, transparency and strength of as obtained films in relation to the doping amount in the precursor solution, spraying distance and film thickness.
Źródło:
Archives of Metallurgy and Materials; 2023, 68, 2; 483--490
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studying of Perovskite Nanoparticles in PMMA Matrix Used as Light Converter for Silicon Solar Cell
Autorzy:
Lipiński, M.
Socha, R. P.
Kędra, A.
Gawlińska, K.
Kulesza-Matlak, G.
Major, Ł.
Drabczyk, K.
Łaba, K.
Starowicz, Z.
Gwóźdź, K.
Góral, A.
Popko, E.
Powiązania:
https://bibliotekanauki.pl/articles/356850.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
perovskite nanoparticles
light converters
solar cells
solar energy materials
Opis:
The nanoparticles of CH3NH3PbBr3 hybrid perovskites were synthesized. These perovskite nanoparticles we embedded in polymethyl methacrylate (PMMA) in order to obtain the composite, which we used as light converter for silicon solar cells. It was shown that the composite emit the light with the intensity maximum at about 527 nm when exited by a short wavelength (300÷450 nm) of light. The silicon solar cells were used to examine the effect of down-conversion (DC) process by perovskite nanoparticles embedded in PMMA. For experiments, two groups of monocrystalline silicon solar cells were used. The first one included the solar cells without surface texturization and antireflection coating. The second one included the commercial cells with surface texturization and antireflection coating. In every series of the cells one part of the cells were covered by composite (CH3NH3PbBr3 in PMMA) layer and second part of cells by pure PMMA for comparison. It was shown that External Quantum Efficiency EQE of the photovoltaic cells covered by composite (CH3NH3PbBr3 in PMMA) layer was improved in both group of the cells but unfortunately the Internal Quantum Efficiency was reduced. This reduction was caused by high absorption of the short wavelength light and reabsorption of the luminescence light. Therefore, the CH3NH3PbBr3 perovskite nanoparticles embedded in PMMA matrix were unable to increase silicon solar cell efficiency in the tested systems.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 3; 1733-1739
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design of Hybrid Solar Cell Based on Dye-Sensitized $TiO_2$ Nanoparticles with Conjugated Polymer
Autorzy:
Abbasian, K.
Rostami, A.
Pourkhorshidi, S.
Powiązania:
https://bibliotekanauki.pl/articles/1490502.pdf
Data publikacji:
2012-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
82.35.Np
88.40.hj
Opis:
In this paper, we have proposed dye-sensitized hybrid solar cell based on $TiO_2$ nanoparticles as a medium for electron transport and conjugated polymers as hole-conductor, where dye molecules absorb solar radiation and create electron-hole pairs. This solar cell can be a better alternative to conventional electrolyte based dye-sensitized solar cells, because of enhanced characteristics of performance. We have simulated it numerically, to study essential characteristics of the structure such as electron, hole and their current densities and internal electric field in two operating conditions of open-circuit and short-circuit cases. Then current-voltage characteristic diagram has been plotted and energy conversion efficiency calculated.
Źródło:
Acta Physica Polonica A; 2012, 121, 1; 10-12
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dual-band absorption of a GaAs thin-film solar cell using a bilayer nano-antenna structure
Autorzy:
Khalaf, A. A. M.
Gaballa, M. D
Powiązania:
https://bibliotekanauki.pl/articles/1818246.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:
dual absorption band
light trapping
plasmonic solar cell
nanoantenna
nanoparticles
Opis:
The paper presents a dual-band plasmonic solar cell. The proposed unit structure gathers two layers, each layer consists of a silver nanoparticle deposited on a GaAs substrate and covered with an ITO layer, It reveals two discrete absorption bands in the infra-red part of the solar spectrum. Nanoparticle structures have been used for light-trapping to increase the absorption of plasmonic solar cells. By proper engineering of these structures, resonance frequencies and absorption coefficients can be controlled as it will be elucidated. The simulation results are achieved using CST Microwave Studio through the finite element method. The results indicate that this proposed dual-band plasmonic solar cell exhibits an absorption bandwidth, defined as the full width at half maximum, reaches 71 nm. Moreover, It can be noticed that by controlling the nanoparticle height above the GaAs substrate, the absorption peak can be increased to reach 0.77.
Źródło:
Opto-Electronics Review; 2020, 28, 3; 171--175
1230-3402
Pojawia się w:
Opto-Electronics Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of GZO/IZO Dual-Layer as an Electron Transport Layer in Dye-Sensitized Solar Cell
Autorzy:
Manzari Tavakoli, M. H.
Ahmadi, M.
Sabet, M.
Powiązania:
https://bibliotekanauki.pl/articles/353232.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
dual-layer
sol-gel
spin coating
thin film
GIZO
solar cell
Opis:
GZO/IZO semiconductor thin films were prepared on the ITO substrate via sol-gel spin coating method for using in the dye-sensitized solar cells (DSSCs). For this purpose, GZO and IZO thin films were optimized by the percentage of doping gallium and indium in zinc oxide and were studied their electrical, optical and structural properties. After that, the layers with the best performance were selected for use in the DSSCs. The concentration of all solutions for spin coating processes was 0.1 M and zinc oxide has been doped with gallium and indium, with different doping percentages (0, 0.5, 1, 2 and 4 volume percentage). So, by studying the properties of the fabricated thin films, it was found the films with 0.5%GZO and 0.5%IZO have the best performance and hence, the optimized dual-layer (0.5% GZO/0.5% IZO (GIZO)) were prepared and studied their electrical and optical properties. The synthesized optimized dual-layer film was successfully used as the working electrode for dye-sensitized solar cells. The sample with 0.5%IZO shows the 9.1 mA/cm2 short-circuit current density, 0.52 V open circuit voltage, 63% fill factor and 2.98% efficiency.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 4; 1609-1614
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of Solar Cells Efficiency through Detailed Characterization of TCO/TiO₂ Interface
Autorzy:
Kwaśnicki, P.
Inglot, M.
Powiązania:
https://bibliotekanauki.pl/articles/1032416.pdf
Data publikacji:
2017-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
photovoltaic
solar cell
dye sensitized solar cell
quantum dots solar cell
TCO/TiO₂ interface
SEM
Opis:
In this work we present a detailed characterization of the interface TCO/TiO₂ layer in order to improve the final efficiency of the solar cell. High resolution SEM measurements done in cross-section configuration as well as optical measurements were performed to obtain a topographic and optical image of measured layer.
Źródło:
Acta Physica Polonica A; 2017, 132, 1; 179-181
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fotowoltaika organiczna: od syntezy do konstrukcji ogniwa słonecznego
Organic photovoltaics: from synthesis to solar cell construction
Autorzy:
Iwan, A.
Palewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/159973.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Elektrotechniki
Tematy:
organiczne ogniwa słoneczne
fotowoltaika polimerowa
organic solar cells
photovoltaics
Opis:
Na podstawie dokonanego przeglądu literatury i badań własnych przedstawiono różne rodzaje ogniw słonecznych stosowanych w fotowoltaice organicznej. Prace badawcze dotyczące rozwoju fotowoltaiki organicznej prowadzone są obecnie w trzech głównych kierunkach: (i) poszukiwanie nowych polimerów, jak też związków małocząsteczkowych stosowanych jako warstwa aktywna ogniwa fotowoltaicznego, (ii) modyfikacja architektury ogniwa słonecznego oraz (iii) udoskonalanie metod wytwarzania poszczególnych warstw w ogniwie. W IEL Wrocław (Pracownia Nowych Technologii) prowadzone są prace nad ogniwami fotowoltaicznymi organicznymi zarówno warstwowymi jak i objętościowymi (bulk heterojunction, BHJ). Istotną część prac Pracowni Nowych Technologii zajmują badania nad optymalizacją struktury stosowanych materiałów organicznych, w tym związków mało- i wielkocząsteczkowych w fotowoltaice organicznej. W niniejszej pracy warstwa aktywna badanych ogniw fotowoltaicznych składała się z materiału o charakterze donorowym (poli(3-heksylotiofen), P3HT lub poliazometiny) i akceptorowym (ester metylowy kwasu [6,6]fenylo-C61-masłowego, PCBM). Skonstruowano ogniwa fotowoltaiczne ITO/PEDOT:PSS/P3HT:PCBM/Al oraz ogniwa odniesienia i wyznaczono dla nich charakterystyki prądowo-napięciowe przy zastosowaniu jako źródła światła lampy ksenonowej. Do pomiarów wykorzystano urządzenie Solartron Model 1287A potentiostat/galwanostat za pomocą, którego określono parametry fotowoltaiczne badanych ogniw. Wykazano wpływ budowy polimeru i architektury ogniwa na wartości parametrów fotowoltaicznych tj. sprawność (PCE), współczynnik wypełnienia (FF) czy też napięcie rozwarcia (Voc) i prąd zwarcia ogniwa (Jsc). Najwyższą wartość sprawności fotowoltaicznej, jaką dotychczas otrzymano w IEL Wrocław, określono na poziomie 2,4% dla ogniwa polimerowego objętościowego. Konstrukcja ogniwa była wykonywana w warunkach laboratoryjnych w atmosferze powietrza.
In this work based on the literature and own research different kinds of organic solar cells are presented. Research works concerning the development of organic photovoltaics are at present in three main directions: (i) the synthesis of new polymers and small compounds as the active layer of the solar cells, (ii) the modification of the architecture of the solar cells and (iii) perfecting of methods of the production of each layers in the solar cells. IEL Wrocław (the Lab of New Technologies) specializes in works over organic photovoltaics with both bilayers and bulk heterojunction, BHJ solar cells. Led are also researches over the optimization of the structure of organic materials including small- and high-molecular compounds in organic photovoltaics. In the present work the active layer of investigated solar cells consisted of the donor (poly(3-hexylthiophene-2,5-diyl), P3HT or polyazomethines) and the acceptor material ([6,6]-phenyl-C61-butyric acid methyl ester, PCBM). Organic photovoltaic devices with the configuration of ITO/PEDOT:PSS/P3HT:PCBM and reference solar cells were investigated under an illumination of 100 mW/cm2 (xenon lamp) with an AM1.5G by applied Solartron the Model 1287A potentiostat/the galvanostat. One showed the influence of the chemical structure of the polymers and the architecture of the solar cells on the value of photovoltaic parameters i.e. the power conversion efficiency (PCE), the fill factor (FF) or else the open circuit voltage (Voc) and the short circuit current (Jsc). The highest value of the PCE, which till now one received in IEL Wrocław, one qualified on level 2.4% for the BHJ polymer solar cell. The construction of the solar cells was performed conditioned of laboratory in the air atmosphere.
Źródło:
Prace Instytutu Elektrotechniki; 2012, 259; 29-30
0032-6216
Pojawia się w:
Prace Instytutu Elektrotechniki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
AP-MOVPE Technology and Characterization of InGaAsN p-i-n Subcell for InGaAsN/GaAs Tandem Solar Cell
Autorzy:
Dawidowski, W.
Ściana, B.
Zborowska-Lindert, I.
Mikolásek, M.
Latkowska, M.
Radziewicz, D.
Pucicki, D.
Bielak, K.
Badura, M.
Kováč, J.
Tłaczała, M.
Powiązania:
https://bibliotekanauki.pl/articles/226630.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
dilute nitrides
AP MOVPE
subcell
tandem solar cell
J-V characteristics
Opis:
Tandem (two p-n junctions connected by tunnel junction) and multijunction solar cells (MJSCs) based on AIIIBV semiconductor compounds and alloys are the most effective photovoltaic devices. Record efficiency of the MJSCs exceeds 44% under concentrated sunlight. Individual subcells connected in series by tunnel junctions are crucial components of these devices. In this paper we present atmospheric pressure metal organic vapour phase epitaxy (AP-MOVPE) of InGaAsN based subcell for InGaAsN/GaAs tandem solar cell. The parameters of epitaxial structure (optical and electrical), fabrication process of the test solar cell devices and current-voltage (J-V) characteristics are presented and discussed.
Źródło:
International Journal of Electronics and Telecommunications; 2014, 60, 2; 151-156
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer modeling in cost-efficient solar cell production technology
Komputerowe modelowanie w technologii produkcji ekonomicznych ogniw słonecznych
Autorzy:
Gułkowski, S.
Olchowik, J. M.
Powiązania:
https://bibliotekanauki.pl/articles/1818703.pdf
Data publikacji:
2013
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
komputerowe modelowanie
technologia produkcji
Opis:
W artykule przedstawione zostały rezultaty symulacji lateralnego wzrostu epitaksjalnego (ELO – Epitaxial Lateral Overgrowth) przeprowadzonych dla krzemowych podłoży wzrostowych o różnych współczynnikach wypełnienia maski (mask-to-window ratio): 70%, 50%, 30% oraz 10%. Zastosowano przy tym następujące parametry: wymiary domeny: 1000 µm × 2000 µm, szybkość chłodzenia: 0,5ºC/min, temperatura początkowa: 920ºC. Przedstawiono przykładową domenę obliczeniową oraz wygenerowaną siatkę numeryczną. W celu zwiększenia precyzji obliczeń w obszarach dużych gradientów koncentracji zastosowano zagęszczenie siatki. Dla wybranych geometrii domen przedstawiono profile koncentracji. Zbadano wpływ geometrii obszaru na kształt pola koncentracji, określającego strumienie masy. Zwiększenie powierzchni krystalizacji składnika spowodowało ukształtowanie się linii stałej koncentracji w objętości roztworu, charakterystyczne dla standardowej metody LPE. Kierunek przepływu Si w objętości jest prostopadły do powierzchni podłoża na całej jego długości. Natomiast przy powierzchni podłoża, na stosunkowo niewielkiej odległości, tworzy się warstwa roztworu, w której linie stałej koncentracji układają się wokół okien Si. Grubość tej warstwy zależy od stopnia wypełnienia i maleje wraz ze wzrostem liczby okien w obszarze domeny. Sąsiadujące ze sobą okna stanowią dla siebie konkurencję pod względem obszaru krystalizacji: tym większą, im bliżej siebie są umiejscowione. Przyczynia się to bezpośrednio do zmniejszenia szybkości wzrostu w kierunku lateralnym przy niewielkiej zmianie wartości szybkości w kierunku normalnym. Skutkuje to również zmniejszeniem wydłużenia względnego otrzymywanych warstw. Z analiz numerycznych wynika, że w celu otrzymania warstw lateralnych o maksymalnym wydłużeniu względnym należy uwzględnić szerokość pasm dielektryka znajdującego się między oknami. Odpowiednie dobranie geometrii podłoża pozwala na uzyskanie możliwie maksymalnych szybkości wzrostu w kierunku lateralnym.
Źródło:
Rocznik Ochrona Środowiska; 2013, Tom 15, cz. 1; 436-447
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-25 z 97

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