期刊
SOLAR RRL
卷 6, 期 11, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/solr.202200336
关键词
composite films; downshifting films; perovskite quantum dots; silicon solar cells; transparency
资金
- Industry Key Technology R&D Program of Xuzhou [ZYQ20210189]
- China Postdoctoral Science Foundation [2021M693408]
- Jiangsu Planned Projects for Postdoctoral Research Funds [2021K600C]
- Natural Science Fund project in Jiangsu Province [BK20210494]
- Fundamental Research Funds for the Central Universities [2021QN1110]
This study presents a low-cost downshifting composite film that enhances the efficiency and environmental stability of silicon solar cells. The composition and properties of perovskite quantum dots are investigated, and their effects on the device performance are explored.
Crystal silicon solar cells being the most successful photovoltaic devices have prevailed in the energy market for decades. To further improve the device performance, photon management is necessary. Herein, a CsPbBr3-Cs4PbBr6 perovskite quantum dot@ZnO/ethylene vinyl acetate copolymer downshifting composite film is coated on the silicon solar cell. This downshifting composite film helps to convert high-energy (UV-blue) photons to relatively low-energy photons with a wavelength at about 500 nm, which possess higher sensitivity in silicon solar cells. The effects of tetra-n-heptylammonium bromide and Zn(C2H5)(2) on composition, optical and luminescence properties of perovskite quantum dots are thoroughly investigated, and a clean quantum dot solution with strong luminescent intensity can be obtained. The perovskite quantum dot@ZnO/ethylene vinyl acetate composite film absolutely improves the efficiency of silicon solar cells by 1.18%. The value is much higher than pure ethylene vinyl acetate (0.42%) and composite film without ZnO (0.57%). Moreover, ZnO inclusion can inhibit Cs and Pb leakage and maintain the device working stability, which is helpful for their commercial application in the future. This study further reveals that the enhancement lies in carrier relaxation energy loss reduction. Herein, a low-cost downshifting composite film with excellent environmental stability for silicon solar cells applications is proposed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据