Effect of a Band-Gap Gradient on the Radiative Losses in the Open-Circuit Voltage of Solar Cells

Effect of a Band-Gap Gradient on the Radiative Losses in the Open-Circuit Voltage of Solar Cells

The radiative open-circuit voltage loss in a solar cell occurs because the absorptance spectrum near the band gap shows a gradual increase rather than a sharp step-function-like transition. This broadening effect has been attributed to band-gap fluctuations and/or to Urbach tails. In this work, we u...

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Main Authors: Sevan Gharabeiki, Francesco Lodola, Tilly Schaaf, Taowen Wang, Michele Melchiorre, Nathalie Valle, Jérémy Niclout, Manha Ali, Yucheng Hu, Gunnar Kusch, Rachel A. Oliver, Susanne Siebentritt
Format: Article
Language:English
Published: American Physical Society 2025-07-01
Series:PRX Energy
Online Access:http://doi.org/10.1103/r25l-ftmp
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http://doi.org/10.1103/r25l-ftmp

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