Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "88.80.H-" wg kryterium: Wszystkie pola


Wyświetlanie 1-18 z 18
Tytuł:
Development and Operational Planning of Power Systems by Comparing Scenarios during Multi-Objective Optimization
Autorzy:
Stefanov, P.
Savić, A.
Dobrić, G.
Powiązania:
https://bibliotekanauki.pl/articles/1401944.pdf
Data publikacji:
2015-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
88.80.H-
Opis:
Multi-objective optimization in development and operational planning of power systems becomes crucially important for system designers or operators. In addition, appropriate procedures increasingly involve comparison of scenarios, each with variables that have to be neither dimensionally nor qualitatively comparable. Selecting the best solution is usually performed posteriorly by comparing the results of different scenarios. In order to eliminate unnecessary calculations during the optimization, especially in the case of large number of scenarios, it is useful to eliminate the scenarios with bad indicators. This process can significantly reduce the computational time. It results in a timely elimination of all inferior scenarios, thus simplifying the decision-making. This paper analyses the methods and the efficiency of comparison of different scenarios being simultaneously processed using NSGA-II and MOPSO optimization procedures. The proposed procedures are discussed in the example of selecting the type, the size and the location of FACTS in transmission networks. Different scenarios consider the common types of these devices, wherein the number of devices depends on the system. The paper proposes the reduction of the optimization procedures. Having no significant influence on the final set of optimal solutions, the proposed modifications are significant and applicable.
Źródło:
Acta Physica Polonica A; 2015, 128, 2B; B-138-B-141
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Manufacturing of Al-Zr Thermal-resistant Alloys for Transmission Lines
Autorzy:
Erturk, A.
Guven, E.
Karabay, S.
Powiązania:
https://bibliotekanauki.pl/articles/1401363.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Bx
88.80.H
83.50.Uv
81.70.Jb
81.40.Ef
81.70.Bt
Opis:
The present transmission lines of populous cities will have to be changed with an ability to work at higher temperatures without any weight and cross section changes. Innovative thermal-resistant alloy conductors (T-ACSR) operate in the range of about 150-200°C instead of 75°C which is the standard ACSR type conductor service temperature. In this study, the manufacturing procedure of Al-Zr alloy wire, used as high-temperature conductor wires, have been introduced. The Al-Zr alloy has been cast in a permanent mold than being extruded to a diameter of 10 mm at 400°C. After that the extruded rods have been cold drawn to a diameter of 3.02 mm. Elongation and tensile strength values of the cold drawn wire have been achieved by tensile test at elevated temperatures. Also, microstructural analysis and dispersion hardening procedure have been investigated. The results show that tensile strength and thermal-resistant property are improved by the addition of Zr.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1292-1294
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrical Conductivity, Viscosity and Thermal Properties of TEGDME-Based Composite Electrolytes for Lithium-Air Batteries
Autorzy:
Kartal, M.
Alp, A.
Akbulut, H.
Powiązania:
https://bibliotekanauki.pl/articles/1398791.pdf
Data publikacji:
2016-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
88.80.F-
88.80.ff
82.45.Gj
82.45.Wx
81.07.-b
Opis:
Some important properties of the electrolytes used in Li-air batteries were investigated. Electrolyte composed of a solution of 1 M LiPF₆ in tetra ethylene glycol dimethyl ether (TEGDME) was reinforced with SiO₂, Al₂O₃, poly(ethylene) oxide (PEO) and tris (pentafluorophenyl) borane (TPFPB) additives. The effects of these reinforcements on conductivity, viscosity and thermal stability were investigated. Electrical conductivity tests were carried out using a multiparameter meter. Viscosity tests were performed in a viscometer using tuning-fork vibration method. Thermal stability of the electrolytes was tested by both TG and DSC.
Źródło:
Acta Physica Polonica A; 2016, 129, 4; 816-818
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of Polyphenolic Compounds of Washingtonia robusta H. Wendl Extracts
Autorzy:
Benahmed-Bouhafsoun, A.
Djebbar, H.
Kaid-Harche, M.
Powiązania:
https://bibliotekanauki.pl/articles/1402516.pdf
Data publikacji:
2015-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
88.20.dh
87.80.Qk
Opis:
The aim of this study is to screen and to evaluate total amount of flavonoids and polyphenols methanolic extracts from Washingtonia robusta H. Wendl leaflets, rachis and roots. Washingtonia robusta leaflets and roots were powdered and subjected to extraction with 80% methanol solution and screened by various chemical tests and TLC studies. The total amounts of polyphenols and flavonoids were determined by the modified colorimetric method using the Folin-Ciocalteu reagent. Phytochemical analysis revealed the presence of flavonoids, tannins, coumarins and quinons. Alkaloids were not detected. In leaflets, the total amount of flavonoids is higher than in rachis and roots. However, the polyphenolic content is nearly the same in all parts of plant.
Źródło:
Acta Physica Polonica A; 2015, 128, 2B; B-465-B-466
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Inorganic Nano Powder Additives in TEGDME for Lithium Air Batteries
Autorzy:
Kartal, M.
Uysal, M.
Cetinkaya, T.
Alp, A.
Akbulut, H.
Powiązania:
https://bibliotekanauki.pl/articles/1401233.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
88.80.F-
88.80.ff
82.45.Gj
82.45.Wx
81.07.-b
Opis:
SiO₂ and Al₂O₃ nano fillers were added to an electrolyte composed of a solution 1 M LiPF₆ in tetra ethylene glycol dimethyl ether (TEGDME) and the effects of these nano powders on capacity and cycling performances were investigated. Galvanostatic charge/discharge (GC) measurements were performed in the assembled Li-air cells by using the nanocomposite electrolytes. The discharge capacities of these cells were cyclically tested by a battery tester at a constant current in the voltage range between 2.15 V and 4.25 V. Discharge products of nanocomposite electrolytes were characterized by SEM and XRD spectroscopies. The electrochemical results demonstrated that Al₂O₃ reinforced electrolyte showed higher discharge capacity and cyclability than those of SiO₂ reinforced electrolyte.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1016-1018
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Fabrication of NiO Microtubes Using Bacillus subtilis/Bacteria
Autorzy:
Atalay, F.
Asma, D.
Aydogmus, E.
Turanci, H.
Kaya, H.
Powiązania:
https://bibliotekanauki.pl/articles/1195249.pdf
Data publikacji:
2014-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.07.-b
82.47.Uv
88.80.fh
Opis:
The nickel oxide microtubes with high surface-to-volume ratio have been achieved using the Bacillus subtilis bacteria. Surface properties of the metal-oxide nanostructured materials were investigated by electron microscopy. The surface area of that was also studied by the Brunauer-Emmett-Teller analysis method. The materials were used at the construction of supercapacitor as an electrode active material.
Źródło:
Acta Physica Polonica A; 2014, 125, 2; 235-237
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Formation of Free Standing NiO Nanostructures on Nickel Foam for Supercapacitors
Autorzy:
Atalay, F.
Aydogmus, E.
Yigit, H.
Avcu, D.
Kaya, H.
Atalay, S.
Powiązania:
https://bibliotekanauki.pl/articles/1194862.pdf
Data publikacji:
2014-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.07.-b
82.47.Uv
88.80.fh
Opis:
In this study, free standing NiO nanostructures for supercapacitors were obtained by means of chemically depositing of nickel oxide on Ni foam and then they were annealed at various temperatures. The morphological properties of densely covered Ni foams were studied by scanning electron microscopy. Supercapacitor characteristics, such as charging/discharging and impedance characteristics, were also examined.
Źródło:
Acta Physica Polonica A; 2014, 125, 2; 224-226
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrochemical Capacitance of Cobalt Oxide Nanotubes on Nickel Foam
Autorzy:
Yagmur, V.
Atalay, F.
Kaya, H.
Avcu, D.
Aydogmus, E.
Powiązania:
https://bibliotekanauki.pl/articles/1399695.pdf
Data publikacji:
2013-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.07.De
82.47.Uv
88.80.fh
Opis:
In this study, densely packed $Co_3O_4$ nanotubes for supercapacitors have been obtained by means of chemically depositing cobalt hydroxide within a porous anodic aluminum oxide and then annealed at 360°C. The morphological properties obtained $Co_3O_4$ nanotubes were studied by scanning electron microscopy, the chemical composition was determined by examination of the energy dispersive X-ray spectra. Supercapacitor characteristics such as charging/discharging and impedance (Z) characteristics were also examined.
Źródło:
Acta Physica Polonica A; 2013, 123, 2; 215-217
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of Cycling Stability of $LiMn_2O_4$ Cathode by $Al_2O_3$ Surface Coating for Li-Ion Batteries
Autorzy:
Şahan, H.
Göktepe, H.
Kılıç Dokan, F.
Aydın, A.
Veziroğlu, S.
Patat, Ş.
Powiązania:
https://bibliotekanauki.pl/articles/1399895.pdf
Data publikacji:
2013-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
88.80.ff
Opis:
The effect of the $Al_2O_3$ coating on the charge-discharge cycling performance of spinel powder ($LiMn_2O_4$) was investigated in the range of 3.5-4.5 V at 1C. The $Al_2O_3$ coating on the surface of the spinel powder was carried out using the solution method, followed by 500C for 6 h in air. Powder X-ray diffraction pattern of the $Al_2O_3$-coated spinel $LiMn_2O_4$ showed that the $Al_2O_3$ coating medium was not incorporated in the spinel bulk structure. Scanning electron microscopy results showed that the $Al_2O_3$ coating particles were homogeneously distributed on the surface of $LiMn_2O_4$ powder particles. The $Al_2O_3$-coated $LiMn_2O_4$ retained 92.3% of its original capacity after 30 cycles, showing much better cycle ability than the bare lithium manganese oxide. The improvement of electrochemical performance is attributed to suppression of $Mn^{2+}$ dissolution into electrolyte via $Al_2O_3$ layer.
Źródło:
Acta Physica Polonica A; 2013, 123, 2; 368-370
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Li-Air Batteries With EC-DEC Based Nanocomposite Electrolytes
Autorzy:
Akbulut, A.
Guler, M.
Cetinkaya, T.
Uysal, M.
Akbulut, H.
Powiązania:
https://bibliotekanauki.pl/articles/1401250.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
82.45.Gj
88.80.ff
82.45.Xy
Opis:
Electrolytes based on organic carbonate solvents of ethylene carbonate (EC) and diethyl carbonate (DEC) were prepared by using LiPF₆ as the Li-source. Nano sized Al₂O₃ (50 nm) was used as a reinforcing component in order to control corrosion and Li₂CO₃ formation. Corrosion of the Li foil anode and electrochemical tests were performed by using EC/DEC/LiPF₆ and nanocomposite EC/DEC/LiPF₆/5wt.% Al₂O₃ electrolytes. Electrochemical tests were performed in the swagelok cells by using Li foil anode and carbon air cathode electrodes. Structural tests were carried out by using scanning electron microscopy (SEM), x-ray diffraction (XRD) and Raman spectroscopy. Results revealed that incorporation of nano Al₂O₃ leads to a decrease of corrosion rate of Li anode and a small decrease in the capacity of the air cells.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1023-1025
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of $TiO_2$ Source on the Electrochemical Performance of $Li_4Ti_5O_{12}$
Autorzy:
Kiliç Dokan, F.
Şahan, H.
Özdemır, N.
Özdemır, B.
Patat, Ş.
Powiązania:
https://bibliotekanauki.pl/articles/1311661.pdf
Data publikacji:
2014-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
88.80.ff
Opis:
This study examined the formation mechanism of $Li_4Ti_5O_{12}$ by a ball mill assisted solid-state reaction between $Li_2CO_3$ and $TiO_2$ for applications in lithium ion batteries, also effects of $TiO_2$ source such as rutile type and anatase type on the electrochemical performance of $Li_{4}Ti_5O_{12}$. However, it is believed that the particle properties may depend significantly on the synthesis process and starting materials, which lead to final products with a range of sizes, morphologies, and even phases.
Źródło:
Acta Physica Polonica A; 2014, 125, 2; 650-651
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Proton conductivity and free volume properties in per-fluorinated sulfonic acid/PTFE copolymer for fuel cell
Autorzy:
Mohamed, H.
Abdel-Hady, E.
Abdel-Hamed, M.
Powiązania:
https://bibliotekanauki.pl/articles/1057956.pdf
Data publikacji:
2017-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.70.Bj
82.47.Nj
72.80.Le
36.10.Dr
88.30.J-
88.30.pf
Opis:
The proton conductivity mechanism in per-fluorinated sulfonic acid/PTFE copolymer Fumapem® membranes for polymer electrolyte membranes has been investigated. Three samples of Fumapem® F-950, F-1050 and F-14100 membranes with different ion exchange capacity 1.05, 0.95, and 0.71 meq/g, respectively, were used in this study after drying. The o-Ps hole volume size (V_{FV,Ps}) was quantified using the positron annihilation lifetime technique while the proton conductivities (σ ) were measured using LCR Bridge as function of temperature. It was found that as the ion exchange capacity increases, the proton conductivity increases and the free volume expands. Temperature dependences of proton conductivity and the o-Ps hole volume size (V_{FV,Ps}) reflect the glass transition temperature of the membrane. A good linear correlation between the reciprocal of the o-Ps hole volume size (1/V_{FV,Ps}) and log(σ)+Δ E_a/2.303k_{B}T, (where ΔE_a is the activation energy, T is the absolute temperature and k_{B} is the Boltzmann constant) at different temperatures indicate that the ionic motion in dry Fumapem® is governed by the free volume. A linear relationship between the critical hole size γ V*_{i} and the ion exchange capacity was also achieved.
Źródło:
Acta Physica Polonica A; 2017, 132, 5; 1509-1514
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Formation of Dislocation Structure in LiF Crystals Irradiated with Swift Heavy Ions under Oblique Incidence
Autorzy:
Russakova, A.
Akilbekov, A.
Dauletbekova, A.
Baizhumanov, M.
Powiązania:
https://bibliotekanauki.pl/articles/1365710.pdf
Data publikacji:
2014-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.88.+h
61.80.Jh
71.20.Dg
Opis:
The structural modifications of LiF irradiated with swift heavy ions under oblique angles have been investigated using AFM, SEM, chemical etching, nanoindentation and optical absorption spectroscopy. LiF crystals were irradiated under incidence angles of 30 and 70 degrees with 2.2 GeV Au (fluence 5 × $10^{11}$ ions $cm^{-2}$) and 150 MeV Kr ions (fluence $10^{12}-10^{14}$ ions $cm^{-2}$). Structural study on sample cross-sections shows that two damage regions, (1) nanostructured zone and (2) dislocation rich zone, which are typical for irradiations at normal incidence, appear also in samples irradiated under oblique angles. However in the latter case a more complex structure is formed that leads to stronger ion-induced hardening.
Źródło:
Acta Physica Polonica A; 2014, 125, 6; 1257-1259
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and Characterization of Spinel $Li_4Ti_5O_{12}$ Anode Material by CTAB Assisted Sol-Gel Method
Autorzy:
Kiliç Dokan, F.
Şahan, H.
Özdemır, B.
Özdemır, N.
Patat, Ş.
Powiązania:
https://bibliotekanauki.pl/articles/1293936.pdf
Data publikacji:
2014-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
88.80.ff
Opis:
Recently, there has been considerable interest in $Li_4Ti_5O_{12}$ as a potential anode for use in lithium ion batteries. It has many advantages compared to the currently used graphite. It has a good reversibility but no structural change. The material has a theoretical specific capacity of 175 mAh $g^{-1}$. $Li_4Ti_5O_{12}$ powders are usually synthesized by a solid-state reaction of lithium and titanium salts. This method was generally preferred because the synthesis procedures are simple. But there are some disadvantages of solid-state methods such as larger particle size of the products, inhomogeneous distribution, lack of stoichiometry control, etc. These disadvantages can be overcome by sol-gel method. Using surfactant in sol-gel method is easy control on crystal growth and size of the desired products.
Źródło:
Acta Physica Polonica A; 2014, 125, 2; 648-649
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sol-Gel Synthesis of Nanocomposite $Cu-Li_4Ti_5O_{12}$ Structures for Ultrahigh Rate Li-Ion Batteries
Autorzy:
Erdas, A.
Ozcan, S.
Guler, M.
Akbulut, H.
Powiązania:
https://bibliotekanauki.pl/articles/1401274.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
82.47.Aa
88.80.ff
Opis:
In this study, spinel $Li_4Ti_5O_{12}$ materials were successfully synthesized by a simple and facile sol-gel process and electroless copper deposition techniques. The characteristics of the as-prepared $Li_4Ti_5O_{12}$ and $Cu-Li_4Ti_5O_{12}$ were examined by X-ray diffraction and scanning electronic microscopy, while the electrochemical performances including charge/discharge and rate performance tests were also investigated. $Cu-Li_4Ti_5O_{12}$ electrode demonstrated the superior initial discharge capacity and rate capability to $Li_4Ti_5O_{12}$ electrode, cycled between 1.0 and 2.5 V. The enhanced rate capability can be attributed to the higher $Li^{+}$ diffusivity and lower charge-transfer resistance due to the electroless deposition of copper. Moreover, when both electrodes discharged with 80 C state of discharge conditions, the reversible capacities were further increased ım70 mAh $g^{-1}$ with excellent cycling stability and almost no irreversible capability was observed during cycling.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1026-1028
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Electrochemical Properties of Cu Coated $LiCr_{0.2}V_{0.2}Mn_{0.6}O_2$ Nanocomposites for High Rate Li-Ion Batteries
Autorzy:
Algul, H.
Erdas, A.
Tokur, M.
Guler, M.
Akbulut, H.
Alp, A.
Powiązania:
https://bibliotekanauki.pl/articles/1401278.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
82.47.Aa
81.15.-z
88.80.ff
Opis:
Several reported problems of commercial LiCoO₂ electrode materials such as high cost, toxicity, limited rate capability and safety concerns are still remain to be problematic to develop the lithium ion consumer electronics such as mobile phones, tablets and notebook computers. In this study, an alternative nanocomposite electrode material based on $LiCr_{0.2}V_{0.2}Mn_{0.6}O_2$ and copper coated one were produced via a facile sol-gel method and electroless Cu deposition techniques. The resulting samples were characterized by X-ray diffraction (Rigaku DMax 2200 diffractometer) using a monochromatized Cu-Kα source (λ=1.5406 Å) and 2θ scan range from 10° to 80° with a speed of 1° $\text{min}^{-1}$. The scanning electron microscope (SEM) was used in order to characterize the morphology of the active materials. The as-synthesized $Cu//LiCr_{0.2}V_{0.2}Mn_{0.6}O_2$ composite cathode exhibits a stable capacity on cycling and good rate capability after 50 cycles and total capacity retention of 93% is obtained. The unique 2D structure of the composite cathode material, its good electrochemical performances and its relatively low cost comparing to LiCoO₂, make this material very promising for applications.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1038-1041
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Multiple Cation (Al, Si, Ti, Co) Doping on Electrochemical Performance οf $LiMn_2O_4$ Cathode Active Material
Autorzy:
Kılıç Dokan, F.
Şahan, H.
Veziroğlu, S.
Akkuş Taş, N.
Aydın, A.
Patat, Ş.
Powiązania:
https://bibliotekanauki.pl/articles/1399894.pdf
Data publikacji:
2013-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
88.80.ff
Opis:
In order to improve the cycling performance of $LiMn_2O_4$, the spinel phases base and multiple cation doped $LiMn_{1.95}Al_{0.0125}Si_{0.0125}Ti_{0.0125}Co_{0.0125}O_4$, $LiMn_{1.9}Al_{0.025}Si_{0.025}Ti_{0.025}Co_{0.025}O_4$ spinels were synthesized by the glycine-nitrate combustion process. The structures of the products were investigated by X-ray diffraction, scanning electron microscopy and electrochemical tests.
Źródło:
Acta Physica Polonica A; 2013, 123, 2; 365-367
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photoluminescence Analysis of Oxygen Precipitation around Small-Angle Grain Boundaries in Multicrystalline Silicon Wafers
Autorzy:
Kato, G.
Tajima, M.
Okayama, F.
Tokumaru, S.
Sato, R.
Toyota, H.
Ogura, A.
Powiązania:
https://bibliotekanauki.pl/articles/1382111.pdf
Data publikacji:
2014-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.55.Ap
61.72.Qq
82.80.Rt
88.40.jj
Opis:
We have investigated the correlation between deep-level photoluminescence and the density of small-angle grain boundaries in multicrystalline Si. A deep-level photoluminescence component around 0.87 eV, which we previously ascribed to oxygen precipitates, became lower and higher in the region with high and low density of small-angle grain boundaries, respectively. This can be explained by the differences in the availability of oxygen atoms around respective small-angle grain boundaries. We performed focused ion beam time-of-flight secondary ion mass spectroscopy on special points emitting extremely strong 0.87 eV emission, and detected a clustered area of $\text{}^16O¯$. This is strong evidence for the idea that the 0.87 eV band is due to oxygen precipitates.
Źródło:
Acta Physica Polonica A; 2014, 125, 4; 1010-1012
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-18 z 18

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies