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

作者：Shao, Guojian^*; Lou, Chaogang; Kang, Jian; Zhang, Hao

来源：Applied Physics Letters, 2015, 107(25): 253904.

DOI：10.1063/1.4938748

• ENCAPSULATION LAYER
• PHOSPHOR PARTICLES
• EFFICIENCY
• PERFORMANCE
• PHOTOVOLTAICS
• CONVERSION
• Y3AL5O12
• INCREASE
• MODEL
• LEDS

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.

• 出版日期2015-12-21
• 单位东南大学