Temat: antireflection coating - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Chemical resistance of SiO2 layers obtained by the sol–gel technique on a glass substrate
Autorzy:: Nocuń, M
Środa, M
Ciecińska, M
Powiązania:: https://bibliotekanauki.pl/articles/173238.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: sol-gel
antireflection coating
sintering parameters
Opis:: The paper analyses the influence of heat treatment parameters on SiO2 coatings obtained by the sol–gel technique. Their adhesion to the glass substrate and corrosion resistance were studied. The changes in thickness and porosity with the firing temperature and time of sintering for the systems of 1, 2 and 3 layers in case of SiO2 layers were studied. It was shown that the sufficient durability of the SiO2 coating on the glass substrate can be achieved only by the appropriate selection of thermal treatment parameters. The results confirmed that higher sintering temperature is required for multilayer systems, as compared with a one-layer system.
Źródło:: Optica Applicata; 2015, 45, 1; 125-134
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Al₂O₃/TiO₂ double antireflection coating deposited by ALD method
Autorzy:: Szindler, Marek
Szindler, Magdalena M.
Orwat, Justyna
Kulesza-Matlak, Grażyna
Powiązania:: https://bibliotekanauki.pl/articles/2174838.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:: antireflection coating
atomic layer deposition method
solar cells
Opis:: Al₂O₃/TiO₂ thin films were deposited onto monocrystalline silicon surfaces using an atomic layer deposition. Their surface morphology and optical properties were examined for their possible use in solar cells. The surface condition and chemical composition were characterized using a scanning electron microscope and the thickness was measured using a spectroscopic reflectometer. The refractive index and the reflection characteristics were determined. First, the optical properties of the Al₂O₃ thin filmand its influence on recombination in the semiconductor were examined. In this way, it can fulfil a double role in a solar cell. Since reflection reduction was only achieved in a narrow range, it was decided to use the Al₂O₃/TiO₂ system. Thanks to this solution, the light reflection was reduced in a wide range (even below 0.2%).
Źródło:: Opto-Electronics Review; 2022, 30, 3; art. no. e141952
1230-3402
Pojawia się w:: Opto-Electronics Review
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Effect of heat treatment on the surface morphology and optical properties of the Al2O3 thin film for use in solar cells
Autorzy:: Szindler, Marek
Szindler, Magdalena M.
Powiązania:: https://bibliotekanauki.pl/articles/2063888.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:: antireflection coating
atomic layer deposition method
solar cells
Opis:: The technology of manufacturing silicon solar cells is complex and consists of several stages. The final steps in succession are the deposition of antireflection layer and discharge contacts. Metallic contacts are usually deposited by the screen printing method and then, fired at high temperature. Therefore, this article presents the results of a research on the effect of heat treatment on the properties of the Al2O3 thin film previously deposited by the atomic layer deposition method. It works well as both passivating and antireflection coating. Moreover, heat treatment affects the value of the cell short-circuit current and, thus, its efficiency. The surface morphology, optical and electrical properties were investigated, describing the influence of heat treatment on the properties of the deposited layers and the manufactured solar cells.
Źródło:: Opto-Electronics Review; 2021, 29, 4; 181--186
1230-3402
Pojawia się w:: Opto-Electronics Review
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Application of Al2O3, ZnO, and TiO2 ALD thin films as antireflection coating in the silicon solar cells
Autorzy:: Szindler, Marek
Szindler, Magdalena
Powiązania:: https://bibliotekanauki.pl/articles/27315697.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:: optical thin film
antireflection coating
atomic layer deposition
solar cells
Opis:: The article describes the results of a research on the surface morphology and optical properties of Al₂O₃, ZnO, and TiO₂ thin films deposited by atomic layer deposition (ALD) for applications in silicon solar cells. The surface topography and elemental composition were characterised using a scanning electron microscope, and thickness was determined using an optical reflectometer. The samples were structurally examined using a Raman spectrometer. The structural variant was identified: for Al₂O₃ it is sapphire, for TiO₂ it is anatase, and for ZnO it is wurtzite. Possibilities of minimising light reflection using single and double thin film systems below 5% were presented. For the first time, the effectiveness of these thin films on the current-voltage characteristics and electrical parameters of manufactured silicon solar cells was examined and compared. The solar cell with the highest efficiency of converting solar radiation into electricity was obtained for Al₂O₃/TiO₂ and the efficiency of such a photovoltaic device was 18.74%.
Źródło:: Opto-Electronics Review; 2023, 31, 4; art. no. e148223
1230-3402
Pojawia się w:: Opto-Electronics Review
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Influence of Chirped DBR Reflector on the Absorption Efficiency of Multi-nanolayer Photovoltaic Structures: Wavelength-scale Analysis by the Method of Single Expression
Autorzy:: Baghdasaryan, H.
Knyazyan, T.
Hovhannisyan, T.
Mardoyan, G.
Marciniak, M.
Benson, T.
Powiązania:: https://bibliotekanauki.pl/articles/958075.pdf
Data publikacji:: 2017
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: antireflection coating
chirped distributed Bragg reﬂector
electromagnetic modeling
method of single expression
multi-nanolayer photovoltaic structure
photovoltaics
Opis:: An electromagnetic wavelength-scale analysis of the optical characteristics of multi-nanolayer photovoltaic (PV) structures: without an antireflection coating, with an antireflection coating on the top of the structure, and with both the antireflection coating on the top and a broadband non-periodic (chirped) distributed Bragg reflector (DBR) on the bottom of the structure is performed. All the PV structures studied are based on a Si p-i-n type absorber supported by a metallic layer (Cu) and SiO2 substrate. The top-to-bottom electromagnetic analysis is performed numerically by the method of single expression (MSE). Absorbing and reflecting characteristics of the multi-nanolayer PV structures are obtained. The influence of the thicknesses and permittivities of the layers of the PV structures on the absorbing characteristics of the structures is analyzed to reveal favourable configurations for enhancement of their absorption efficiency. The localizations of the electric component of the optical field and the power flow distribution within all the PV structures considered are obtained to confirm an enhancement of the absorption efficiency in the favorable configuration. The results of the electromagnetic wavelength-scale analysis undertaken will have scientific and practical importance for optimizing the operation of thin-filmmulti-nanolayer PV structures incorporating a chirped DBR reflector with regards to enhancing their efficiency.
Źródło:: Journal of Telecommunications and Information Technology; 2017, 3; 99-106
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Pulsed laser deposition of ZnO and MoO3 as reflection prohibitors on photovoltaic cell substrate to enhance the efficiency
Autorzy:: Selvan, P.
Jebaraj, D. J. J.
Hynes, N. R. J.
Powiązania:: https://bibliotekanauki.pl/articles/2201045.pdf
Data publikacji:: 2022
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:: solar cell
antireflection coating
refractive index
pulsed laser deposition
ogniwo słoneczne
powłoka antyrefleksyjna
współczynnik załamania światła
pulsacyjna ablacja laserowa
Opis:: Purpose With the ever-growing demand for conventional fuels, the improvement in the efficiency of the photovoltaic system is the need of the hour. Antireflection coatings enhance the availability of solar power by reducing the percentage of light reflected. A new coating has been developed to improve the solar cell's overall efficiency. This study focuses on enhancing the efficiency of the monocrystalline solar cell when a coating of ZnO-MoO3 is applied at a certain thickness. Design/methodology/approach A layer of ZnO followed by MoO3 is deposited on a Silicon solar cell substrate using a Pulsed Laser Deposition process. Due to the transmissivity d between the two materials, they act as excellent antireflection coating. The layer thickness has been engineered to lie in the maximum absorption spectrum of monocrystalline silicon solar cells, which is between 400 and 800 nanometers. Findings Based on the calculation of transmissivities for a given layer thickness of coating material, the coating has been done, and the efficiencies of the coated specimen were compared with the uncoated solar cell. The percentage improvement in the electrical efficiency of a single crystalline silicon solar cell with an anti-reflection coating at 1059 W/m2 is about 35.7%. Research limitations/implications Among the available antireflection coating materials, the combination that provides better efficiency when coated on top of a solar cell is hard to find. Practical implications This anti-reflection coating could be a better solution to enhance the overall efficiency of the single crystalline silicon solar cell. Originality/value Although ZnO and MoO3 coatings have been investigated separately for improvement in solar cell efficiency with varying levels of success, the hybrid coating of ZnO/MoO3 with a performance enhancement of 35.7% is a great leap.
Źródło:: Journal of Achievements in Materials and Manufacturing Engineering; 2022, 113, 2; 65--71
1734-8412
Pojawia się w:: Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:: Biblioteka Nauki

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