期刊
ADVANCED FUNCTIONAL MATERIALS
卷 32, 期 35, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202204328
关键词
antireflective coatings; phosphors; scattering; SiO; (2) particles; tandem solar cells; UV down conversion
类别
资金
- Korea Institute of Energy Technology Evaluation and Planning - Korea government [202113091010010]
- NSF [ECCS 1709307]
- National Research Foundation of Korea - Korea government [2021M3H4A1A02051234, NRF-2018R1A2B2003720]
- Technology Development Program to solve climate changes of the National Research Foundation (NRF) - Ministry of Science, ICT [2019M1A2A2072416]
- National Research Foundation of Korea [2021M3H4A1A02051234] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The optical properties of a textured antireflective coating (ARC) polymeric film are engineered by combining the down-conversion effect of large phosphor particles and the multiple scattering effect of SiO2 nanoparticles, leading to an improved power conversion efficiency of perovskite/silicon tandem solar cells.
The optical properties of a textured antireflective coating (ARC) polymeric film are engineered by combining the down-conversion effect of large phosphor particles and the multiple scattering effect of SiO2 nanoparticles. In order to address the parasitic absorption of ultraviolet (UV) light, phosphors are added to convert UV light to visible light. However, the embedded phosphors increase the reflectance of the ARC film, due to the large particle size (>5 mu m) and high refractive index (n approximate to 1.9) of phosphors. Such a backward scattering problem of phosphors is compensated by adding spherical SiO2 nanoparticles. Experimental and computational results show that SiO2 nanoparticles in the ARC film decrease the reflectance by increasing the diffuse transmittance. This optically engineered ARC film successfully promotes the light absorption of the perovskite/silicon tandem solar cell, leading to the improvement of power conversion efficiency of the tandem cell from 22.48% to 23.50%.
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