論文

査読有り
2017年7月

Impact of optically nonuniform luminescence coupling effect to the limiting cell conversion efficiency in InGaP/GaAs/Ge triple junction solar cell

JOURNAL OF PHOTONICS FOR ENERGY
  • Bernice Mae F. Yu Jeco
  • ,
  • Tomah Sogabe
  • ,
  • Ryo Tamaki
  • ,
  • Nazmul Ahsan
  • ,
  • Yoshitaka Okada

7
3
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1117/1.JPE.7.035501
出版者・発行元
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS

The impact of nonuniform spatial distribution of the luminescence coupling (LC) effect to the limiting cell conversion efficiency of multijunction solar cells (MJSCs) has been investigated. For this purpose, the laser beam induced current distribution maps of the limiting bottom cell have been acquired experimentally under varying middle-to-bottom cell LC efficiencies. The minimum and the maximum LC efficiencies demonstrated were 8.5% and 69%, respectively. To further analyze the measurement results, a quasi-two-dimensional simulation model considering the spatially nonuniform nature of the LC effect has been developed. A good agreement between the simulation and the measurement results suggests that the nonuniform LC current distribution is induced by optical phenomena such as photon escape and internal reflection. This nonuniformity then causes the absolute conversion efficiency of the limiting cell to be reduced by 1.35% at maximum LC efficiency. This reduction, when suppressed, can yield higher limiting cell conversion efficiency, which in turn may improve the overall MJSC conversion efficiency. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License.

Web of Science ® 被引用回数 : 5

リンク情報
DOI
https://doi.org/10.1117/1.JPE.7.035501
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000413584800002&DestApp=WOS_CPL

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