High-performance broadband optical coatings on InGaN/GaN solar cells for multijunction device integration

被引：54

作者：

Young, N. G. ^{[1
]}

Perl, E. E. ^{[2
]}

Farrell, R. M. ^{[1
]}

Iza, M. ^{[1
]}

Keller, S. ^{[2
]}

Bowers, J. E. ^{[1
,2
]}

Nakamura, S. ^{[1
,2
]}

DenBaars, S. P. ^{[1
,2
]}

Speck, J. S. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 16期

基金：

美国国家科学基金会;

关键词：

NANOROD ARRAYS; EFFICIENCY; LAYER; ENERGY;

D O I：

10.1063/1.4873117

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate InGaN/GaN multiple quantum well solar cells grown by metalorganic chemical vapor deposition on a bulk (0001) substrate with high-performance broadband optical coatings to improve light absorption. A front-side anti-reflective coating and a back-side dichroic mirror were designed to minimize front surface reflections across a broad spectral range and maximize rear surface reflections only in the spectral range absorbed by the InGaN, making the cells suitable for multijunction solar cell integration. Application of optical coatings increased the peak external quantum efficiency by 56% (relative) and conversion efficiency by 37.5% (relative) under 1 sun AM0 equivalent illumination. (C) 2014 AIP Publishing LLC.

引用

页数：4

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