4.6 Article

Quantum efficiency enhancement in selectively transparent silicon thin film solar cells by distributed Bragg reflectors

Journal

OPTICS EXPRESS
Volume 20, Issue 23, Pages A828-A835

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OE.20.00A828

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Funding

  1. National Science Council (NSC) of ROC, Taiwan [NSC-99-2112-M-001-033-MY3, NSC 100-3113-E-110-006-]
  2. Academia Sinica, Taiwan

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This work demonstrated a-Si: H thin-film solar cells with backside TiO2 / SiO2 distributed Bragg reflectors (DBRs) for applications involving building-integrated photovoltaics (BIPVs). Selectively transparent solar cells are formed by adjusting the positions of the DBR stop bands to allow the transmission of certain parts of light through the solar cells. Measurement and simulation results indicate that the transmission of blue light (430 similar to 500 nm) with the combination of three DBR mirrors has the highest increase in conversion efficiency. (C) 2012 Optical Society of America

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