Effects of surface barrier layer in AlGaAs/GaAs solar cells

Hiroyuki Urabe*, Makoto Kuramoto, Tomohiro Nakano, Atsushi Kawaharazuka, Toshiki Makimoto, Yoshiji Horikoshi

*この研究の対応する著者

研究成果: Article査読

4 被引用数 (Scopus)

抄録

In this paper, we report the effects of surface barrier layers on the characteristics of AlGaAs/GaAs solar cells. The external quantum efficiency (EQE) spectra for AlGaAs barrier samples with different barrier layer AlAs fractions and thickness of the surface barrier layer were measured to increase the solar cell efficiency. The results show that the surface barrier layer is effective to block diffusing photoexcited electrons to the surface while the thicker barrier layer absorbs higher energy photons to generate carriers which recombine at the surface. The optimal surface barrier structure is a 50 nm thick Al0.7Ga0.3As.

本文言語English
ページ(範囲)330-332
ページ数3
ジャーナルJournal of Crystal Growth
425
DOI
出版ステータスPublished - 2015 7 28

ASJC Scopus subject areas

  • 凝縮系物理学
  • 無機化学
  • 材料化学

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