12 December 2018 Titania-/cerium-doped yttrium aluminum garnet protective/downconversion layer for photovoltaics in harsh environments
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Abstract
Solar cells operating in harsh conditions such as extraterrestrial environment suffer from ionizing UV irradiation from the sun and radiation damages from high-energy particles. Titania (TiO2) can achieve high transmittance in the visible and near-infrared while efficiently blocking UV irradiations. Cerium-doped yttrium aluminum garnet (YAG:Ce) is commercially used as an efficient spectral downconverter in white-light LEDs, and it has also been studied for its potential as a radiation-withstanding scintillator. We propose TiO2  /  YAG  :  Ce thin films utilizing TiO2’s UV cut-off properties as well as YAG:Ce’s downshifting properties as both multipurpose protector and performance enhancer for solar cells.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2018/$25.00 © 2018 SPIE
Liang Tang, Huiqi Ye, and Dong Xiao "Titania-/cerium-doped yttrium aluminum garnet protective/downconversion layer for photovoltaics in harsh environments," Optical Engineering 58(4), 041606 (12 December 2018). https://doi.org/10.1117/1.OE.58.4.041606
Received: 3 September 2018; Accepted: 16 November 2018; Published: 12 December 2018
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KEYWORDS
Ultraviolet radiation

Solar cells

Photovoltaics

YAG lasers

Glasses

Space operations

Cerium

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