BCNO silica gel-based green transparent and efficient luminescent downshifting layer for Si solar cells
化学工程
量子效率
发光
作者
S. Sekar,S. Venkataprasad Bhat
出处
期刊:Sustainable Energy and Fuels [The Royal Society of Chemistry] 日期:2021-04-06卷期号:5 (7): 2046-2054被引量:2
标识
DOI:10.1039/d1se00142f
摘要
The luminescent downshifting (LDS) layer in photovoltaics is emerging as a versatile and cost-effective technique to expand solar energy harvesting into new spaces. Herein, we introduce a 2D-BCNO (boron carbon oxynitride)-based silica gel as a transparent, green and rare-earth-free luminophore for such an LDS layer, which is capable of exploiting its highly efficient emission behaviour to enhance light absorption as well as the performance of a Si solar cell. Initial tests with the BCNO gel LDS layer on the top showed a 7.1% improvement in the power conversion efficiency of the Si solar cell. The observed enhancement is very promising, on par with the best in the literature, and it can be further improved by optimizing the BCNO emission.