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- W4378803669 abstract "Photons of varying wavelengths exert substantial effects on silicon heterojunction (SHJ) solar cells. Collaborative research previously establishes that light soaking with long-wavelength photons can activate boron doping in hydrogenated amorphous silicon (a-Si:H), thereby augmenting cell efficiency (Eff). Herein, this investigation is extended, exploring the effects of short-wavelength photons on a-Si:H layers, SHJ solar cells, and modules. The ultraviolet A (UVA) light with the wavelengths peak of 365 nm can disrupt Si–H bonds, resulting in a notable reduction in hydrogen content within both intrinsic and doped a-Si:H films, and the deterioration of deteriorated interface passivation. Following exposure to 60 kWh m−2 of UVA light, both Eff and module power output decrease significantly, primarily attributable to the degradation of open-circuit voltage and fill factor. As a feasible solution, the application of a light-soaking process or the implementation of UV band cutoff module encapsulants can effectively mitigate the loss induced by UV irradiation, thereby ensuring the long-term operation of SHJ solar cells and modules. Herein, a deeper understanding of UV-induced performance changes in a-Si:H film and its degradation mechanism for SHJ solar cells are contributed to in this research and also a viable strategy is provided to counter UV-induced degradation." @default.
- W4378803669 created "2023-06-01" @default.
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- W4378803669 date "2023-06-22" @default.
- W4378803669 modified "2023-10-12" @default.
- W4378803669 title "Short Wavelength Photons Destroying Si–H Bonds and Its Influence on High‐Efficiency Silicon Solar Cells and Modules" @default.
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- W4378803669 doi "https://doi.org/10.1002/solr.202300334" @default.
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