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Title: Luminescent down shifting effect of Ce-doped yttrium aluminum garnet thin films on solar cells

Ce-doped yttrium aluminum garnet (YAG:Ce) thin films as luminescent down shifting (LDS) materials are introduced into the module of crystalline silicon solar cells. The films are deposited by RF magnetron sputtering on the lower surface of the quartz glass. They convert ultraviolet and blue light into yellow light. Experiments show that the introduction of YAG:Ce films improves the conversion efficiency from 18.45% of the cells to 19.27% of the module. The increasing efficiency is attributed to LDS effect of YAG:Ce films and the reduced reflection of short wavelength photons. Two intentionally selected samples with similar reflectivities are used to evaluate roughly the effect of LDS alone on the solar cells, which leads to a relative increase by 2.68% in the conversion efficiency.
Authors:
; ; ;  [1]
  1. School of Electronic Science and Engineering, Southeast University, Nanjing 210096, Jiangsu Province (China)
Publication Date:
OSTI Identifier:
22486290
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 25; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALUMINIUM; DOPED MATERIALS; EFFICIENCY; GARNETS; GLASS; LUMINESCENCE; MAGNETRONS; NEODYMIUM LASERS; PHOTONS; QUARTZ; REFLECTION; REFLECTIVITY; SILICON SOLAR CELLS; SPUTTERING; THIN FILMS; ULTRAVIOLET RADIATION; VISIBLE RADIATION; WAVELENGTHS; YTTRIUM