Influence of bowl-like nanostructures on the efficiency and module power of black silicon solar cells

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F19%3A10242670" target="_blank" >RIV/61989100:27710/19:10242670 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0038092X19307066" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0038092X19307066</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.solener.2019.07.044" target="_blank" >10.1016/j.solener.2019.07.044</a>

Result language
angličtina
Original language name
Influence of bowl-like nanostructures on the efficiency and module power of black silicon solar cells
Original language description
In this work, black multi-crystal silicon (Mc-Si) solar cells with bowl-like nanotextured surfaces were successfully fabricated by a metal-assisted chemical etching (MACE) method. Defect removal etching processes of various durations were used to form bowl-like nanostructures of three sizes on the wafer surface. Overall, a low depth and large diameter of bowl-like structure in nanotextured surfaces is demonstrated to be helpful in reducing surface recombination and improving the cell and module performance. The average cell module power of the bowl-like nanotextured surfaces with an average bowl diameter 680 nm is clearly higher by 1.51 W, 1.46 W, and 1.26 W than for nanotextured surfaces with bowl diameter 460 nm in the 18.8%, 18.9%, and 19.0% efficiency bins. A maximum cell efficiency of 19.17% and module power of 279.74 W were obtained using our MACE process in an industrial mass production line. The techniques presented in this paper can be used for the mass production of diamond wire sawing Mc-Si solar cells and meet the requirements of high efficiency and low cost in the photovoltaic industry.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21000 - Nano-technology

Project
<a href="/en/project/EF16_019%2F0000853" target="_blank" >EF16_019/0000853: Institute of Environmental Technology - Excellent Research</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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