GaInN-Based Solar Cells Using Strained-Layer GaInN/GaInN Superlattice Active Layer on a Freestanding GaN Substrate
GaInN-Based Solar Cells Using Strained-Layer GaInN/GaInN Superlattice Active Layer on a Freestanding GaN Substrate
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DOI:
10.1143/apex.4.021001
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发表时间:
2011-02-01
影响因子:
2.3
通讯作者:
Amano, Hiroshi
中科院分区:
文献类型:
--
作者:
Kuwahara, Yousuke;Fujii, Takahiro;Amano, Hiroshi
High-performance GaInN-based solar cells with high open-circuit voltage, high short-circuit current density, and good fill factor have been obtained using a combination of two different GaInN superlattice structures. The GaInN barrier thicknesses (3 and 0.6 nm) in both superlattice structures were optimized, resulting in a thick GaInN-based active layer with a low pit density in the device. The conversion efficiency is approximately 2.5% under a solar simulator of air mass 1.5G and an irradiation intensity of 155mW/cm(2). (C) 2011 The Japan Society of Applied Physics