Опубликована: Дек. 6, 2023
In
this
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Язык: Английский
Proceedings of NAS RA Physics, Год журнала: 2025, Номер unknown, С. 106 - 114
Опубликована: Май 6, 2025
Представлены результаты исследования углового отражения слоев черного кремния (b-Si), сформированных методом реактивного ионного травления. Расчеты матрицы переноса и экспериментальные измерения подтверждали превосходное антиотражающее свойство b-Si при углах падения светового излучения до 60°. Это обеспечивает стабильность тока короткого замыкания солнечных элементов в широком угловом диапазоне, что особенно важно для эффективной эксплуатации стационарных фотовольтаических станций течение дня облачной погоде. Ներկայացված են ռեակտիվ իոնային խածատմամբ ձևավորված սև սիլիցիումի (b-Si) շերտերի անկյունային անդրադարձման հետազոտման արդյունքները։ Մատրիցային փոխանցման մեթոդով իրականացված հաշվարկները և փորձարարական չափումները հաստատում b-Si-ի գերազանց հակաանդրադարձման հատկությունը լուսային ճառագայթների մինչև 60° անկման անկյունների դեպքում։ Դա ապահովում է արևային էլեմենտների կարճ միացման հոսանքի կայունությունը լայն տիրույթում, ինչը հատկապես կարևոր ցերեկային ամպամած եղանակին անշարժ ֆոտովոլտային կայանների արդյունավետ շահագործման համար: The study presents the results of angular reflection analysis black silicon layers formed through reactive ion etching. Calculations using transfer matrix method and experimental measurements confirm excellent antireflective properties at light incidence angles up to This ensures stability short-circuit current in solar cells across a wide range, which is particularly important for efficient operation stationary photovoltaic stations during daytime under cloudy conditions.
Язык: Русский
Процитировано
0
physica status solidi (RRL) - Rapid Research Letters, Год журнала: 2023, Номер 18(3)
Опубликована: Ноя. 21, 2023
Black silicon (BS) layers coated with passivation films are widely used as antireflective frontal surfaces for solar cells. The most common BS fabrication techniques reactive ion etching (RIE), metal‐assisted chemical etching, and laser‐induced processing. Herein, the structural optical properties, well minority carrier lifetime, of compared without atomic layer deposited HfO 2 produced by above formation methods. antireflection behavior samples is discussed based on light trapping effect change in refractive index from air to bulk crystalline Si. Finally, test cells manufactured, their photovoltaic parameters studied. comparison results show that RIE preferred all technical respects. features using different cell manufacturing point view analyzed.
Язык: Английский
Процитировано
8
physica status solidi (RRL) - Rapid Research Letters, Год журнала: 2024, Номер 18(8)
Опубликована: Апрель 15, 2024
The wettability of black silicon (BSi) layers fabricated by reactive ion etching (RIE), metal‐assisted chemical (MACE), and laser‐induced (LIE) techniques is studied. contact angles wetting on the samples with deionized water methylammonium iodide‐based perovskite solutions are determined. It found that element composition enlargement area factor BSi have a significant effect their wettability. When tested water, RIE MACE exhibit hydrophobic properties, while LIE layer demonstrates hydrophilic properties due to SiOx‐rich surface structures. also shown aging leads decrease in angle. Upon exposure solution droplets, become highly lyophilic. Based Wenzel Cassie–Baxter models, mechanisms responsible for states identified. In results obtained, valuable insights provided into potential using these tandem perovskite/silicon solar cells.
Язык: Английский
Процитировано
2
Applied Physics Letters, Год журнала: 2024, Номер 125(6)
Опубликована: Авг. 5, 2024
To alleviate high costs and lengthy trial-and-error periods associated with traditional optimization methods for perovskite solar cells (PSCs), we developed a data-driven reverse design framework high-efficiency PSCs. This integrates machine learning Bayesian (BO) to accelerate the process of PSCs by intelligently recommending most promising parameter configurations PSCs, such as device structure fabrication processes. improve robustness framework, first designed two-stage sampling strategy issue imbalanced dataset classes. Subsequently, integrating “experimental knowledge constraints” into BO process, achieved precise configurations, thus avoiding discrepancies between predicted actual results due mismatches. Finally, using SHapley Additive exPlanations, unveiled key factors influencing power conversion efficiency (PCE), composition solvents. Our not only precisely PCE an area under curve 0.861 but also identified optimal achieving probability 0.981. offers substantial support minimizing redundant experiments characterizations, effectively accelerating
Язык: Английский
Процитировано
2
physica status solidi (RRL) - Rapid Research Letters, Год журнала: 2024, Номер 19(2)
Опубликована: Сен. 17, 2024
This study investigates the optical properties (light reflectance, absorptance, transmittance, and scattering) of black silicon (b‐Si) layers formed using reactive ion etching method. The corresponding spectra are determined across visible, near‐infrared, near‐ultraviolet wavelength ranges (250–1400 nm). It is demonstrated that b‐Si reduce increase absorptance light scattering due to disordered distribution nanoneedles. Increasing duration strengthens this trend. shown etched for 10 min can be considered perfect scatterers upon reflection at wavelengths less than 700 nm. Based on obtained results, possible profits from interlayer perovskite/Si tandem solar cells analyzed. substantiated useful not only within bottom Si subcell but also in top perovskite subcell. prospects future research directions challenges provided.
Язык: Английский
Процитировано
2
Applied Physics Letters, Год журнала: 2024, Номер 124(17)
Опубликована: Апрель 22, 2024
All-inorganic carbon-based CsPbBr3 perovskite solar cells (PSCs) have gained growing interest for their remarkable stability. However, compared to organic–inorganic hybrid counterparts, there is still substantial room improving performance primarily due the inferior photogenerated carrier collection efficiency. Here, we employ area-dependent transient photocurrent assess transit time in PSCs, revealing that an extended relative lifetime significantly contributes low To address this challenge, narrow gap between and by introducing a dual-functional additive, serving facilitate both crystallization orientation defect passivation. Consequently, achieve enhanced short-circuit current efficiency PSCs.
Язык: Английский
Процитировано
1
Materials Today Communications, Год журнала: 2024, Номер 40, С. 109740 - 109740
Опубликована: Июль 4, 2024
Язык: Английский
Процитировано
1
Advanced Materials Science and Technology, Год журнала: 2023, Номер 5(1), С. 0 - 0
Опубликована: Янв. 1, 2023
The optical properties of a tandem three-layered structure crystalline silicon-black silicon-perovskite have been theoretically studied for using it in solar energy conversion. transfer matrix method is used obtaining the analytical expressions reflection, transmission, and absorption coefficients. It shown that can be successfully applied to more complicated case three layers with complex refractive indexes. Numerical calculations performed at an angle incidence radiation 60o showed region short wavelengths reflection coefficient takes on low values (several percent), which gradually increase become > 10% at above 0.8 μm. modeled results are good agreement experimental data carried out structures silicon-TiO2-perovskite. discrepancy between model slowly increases increasing wavelength. transmittance was extremely increased found cheaper easier created may potential
Язык: Английский
Процитировано
1
Опубликована: Сен. 14, 2023
The optical properties of nanostructured silicon surfaces in the form nanocylinder and nanocone arrays are simulated by finite difference time domain method.Such correspond to porous black layers, respectively.The relationship between reflectance geometric parameters (in-plane period, out-of-plane depth or height, diameter) nanocylinders nanocones has been studied.It is shown that with most effective frontal antireflective for solar cells.
Язык: Английский
Процитировано
1
Synthesis lectures on materials and optics, Год журнала: 2024, Номер unknown, С. 111 - 179
Опубликована: Янв. 1, 2024
As a new functional material, b-Si has drawn worldwide attention in recent years. It is an ideal material for achieving sensitive photodetectors, photodiodes, biochemical sensors, hydrogen generators and display devices.
Язык: Английский
Процитировано
0