Effects of spacer thickness on quantum efficiency of the solar cells with embedded Ge islands in the intrinsic layer

Arnold Alguno; Noritaka Usami; Toru Ujihara; Kozo Fujiwara; Gen Sazaki; Kazuo Nakajima; Kentaro Sawano; Yasuhiro Shiraki

doi:10.1063/1.1697632

Effects of spacer thickness on quantum efficiency of the solar cells with embedded Ge islands in the intrinsic layer

Arnold Alguno, Noritaka Usami, Toru Ujihara, Kozo Fujiwara, Gen Sazaki, Kazuo Nakajima, Kentaro Sawano, Yasuhiro Shiraki

IMR - Collaborative Research Center on Energy Materials

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

The spacer thickness effects of solar cells was investigated for external quantum efficiency (EQE) which was embedded with Ge islands into intrinsic region of Si-based p-i-n diode. The EQE response of solar cells depended on spacer thickness which separated layers of self-assembled Ge islands. When the spacer thickness sustained vertical ordering of islands, the EQE response was found to have optimum value. The random nucleation of islands exhibited an inferior EQE response due to thicker spacer layer.

Original language	English
Pages (from-to)	2802-2804
Number of pages	3
Journal	Applied Physics Letters
Volume	84
Issue number	15
DOIs	https://doi.org/10.1063/1.1697632
Publication status	Published - 2004 Apr 12

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AU - Alguno, Arnold

AU - Usami, Noritaka

AU - Ujihara, Toru

AU - Fujiwara, Kozo

AU - Sazaki, Gen

AU - Nakajima, Kazuo

AU - Sawano, Kentaro

AU - Shiraki, Yasuhiro

PY - 2004/4/12

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N2 - The spacer thickness effects of solar cells was investigated for external quantum efficiency (EQE) which was embedded with Ge islands into intrinsic region of Si-based p-i-n diode. The EQE response of solar cells depended on spacer thickness which separated layers of self-assembled Ge islands. When the spacer thickness sustained vertical ordering of islands, the EQE response was found to have optimum value. The random nucleation of islands exhibited an inferior EQE response due to thicker spacer layer.

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Effects of spacer thickness on quantum efficiency of the solar cells with embedded Ge islands in the intrinsic layer

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