Ge composition dependence of properties of solar cells based on multicrystalline SiGe with microscopic compositional distribution

Wugen Pan, Kozo Fujiwara, Noritaka Usami, Toru Ujihara, Kazuo Nakajima, Ryuichi Shimokawa

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

The device performance of solar cells, which was based on multicrystalline (mc) SiGe with microscopic compositional distribution, was investigated. It was observed that a small addition of Ge to mc-Si had increased the short-circuit current density without effecting the the open-circuit voltage. It was also observed that the increament of short circuit photocurrent of mc-SiGe solar cells with microscopic compositional distribution was due to the increased absorption coefficients. It was also observed that the absorption coefficient of mc-SiGe at the wavelength of 600-800 nm was 1.2 times larger than that of mc-Si.

Original languageEnglish
Pages (from-to)1238-1241
Number of pages4
JournalJournal of Applied Physics
Volume96
Issue number2
DOIs
Publication statusPublished - 2004 Jul 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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