Benefits of Lambertian Light Distribution Across Widely Deployed Photovoltaic Materials

被引：1

作者：

Irvin, Nicholas P. ^{[1
]}

Babcock, Sean J. ^{[1
]}

Chen, Eric Y. ^{[1
]}

King, Richard R. ^{[1
]}

Honsberg, Christiana B. ^{[1
]}

机构：

[1] Arizona State Univ, Tempe, AZ 85281 USA

来源：

PHYSICS, SIMULATION, AND PHOTONIC ENGINEERING OF PHOTOVOLTAIC DEVICES IX | 2020年 / 11275卷

基金：

美国国家科学基金会;

关键词：

light trapping; rear-mirror reflectance; texturing; planar; Lambertian; emittance; absorptance; solar cells; SOLAR-CELLS; AUGER RECOMBINATION; SILICON; EFFICIENCY; LIMIT; REFLECTOR; GAP;

D O I：

10.1117/12.2543935

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Silicon solar cells benefit from an internal Lambertian light distribution achieved through texturing, while the performance of direct-bandgap materials can be lower with an internal Lambertian light distribution than the light distribution of a planar cell. A novel analytic expression is derived for the emittance of cells with a Lambertian light distribution and partial rear reflectance. This expression enables comparison of Si, GaAs, CdTe, and CIS cells under planar and Lambertian light distributions with varying rear reflectance in the Auger limit. A Lambertian light distribution is shown to be particularly beneficial to thinner material with higher rear reflectance due to absorptance enhancement. It is found that a Lambertian light distribution increases radiative recombination in most absorbers but can reduce radiative recombination in some CIS material.

引用

页数：9

共 31 条

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