ArticleScientific reports2025
Investigation of ZnMgO/µc-Si thin-film solar cell using two-dimensional numerical simulation.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The development of efficient microcrystalline silicon (µc-Si) thin-film solar cells offers a promising route to reduce photovoltaic costs. This work presents, for the first time, a comprehensive numerical model to optimize ZnMgO/µc-Si-based solar cells by analyzing its performance metrics. The model incorporates horizontal and vertical grain boundaries (GBs) in the absorber with Gaussian-distributed donor- and acceptor-like trap states. Key parameters studied are Mg concentration, thickness, and doping in the ZnMgO emitter, as well as GB-induced recombination in the µc-Si absorber. Results show that increasing Mg concentration up to 20% significantly enhances performance, while higher concentrations yield negligible improvement. GB recombination critically affects performance: smaller grain size, which increases GB density, causes exponential degradation, and GB trap densities above 10
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