Effect of surface treatment with different sulfide solutions on the ultrafast dynamics of photogenerated carriers in GaAs(100)

Lebedev, Mikhail V.; Ikeda, Katsuyoshi; Noguchi, Hidenori; Abe, Yusuke; Uosaki, Kohei

Effect of surface treatment with different sulfide solutions on the ultrafast dynamics of photogenerated carriers in GaAs(100)

Lebedev, Mikhail V.; Ikeda, Katsuyoshi; Noguchi, Hidenori et al.

Applied Surface Science, 2013, 267, 185-188

Permalink : https://hdl.handle.net/2115/59734

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論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/59734
タイトル	Effect of surface treatment with different sulfide solutions on the ultrafast dynamics of photogenerated carriers in GaAs(100)
著者	Lebedev, Mikhail V. ; Ikeda, Katsuyoshi ; Noguchi, Hidenori ; Abe, Yusuke ; Uosaki, Kohei
著者名 Lebedev, Mikhail V.
著者名 Ikeda, Katsuyoshi
著者名 Noguchi, Hidenori
著者名 Abe, Yusuke
e-Rad_Researcher 20133697 著者名 Uosaki, Kohei
言語	英語
キーワード	GaAs
	Sulfur passivation
	Surface recombination
	Semiconductor/solution interface
	Ammonium sulfide
	Solvent effect
発行日	2013-02-15
出版者	Elsevier
収録物名	Applied Surface Science
巻(号)	267
ページ	185-188
抄録	The ultrafast carrier dynamics of GaAs(1 0 0) surfaces passivated with different sulfide solutions is studied by time-resolved measurements of infrared absorption using the femtosecond visible-pump infrared-probe technique. After passivation of n-GaAs(1 0 0) surface with the solution of ammonium sulfide in 2-propanol the three-fold decrease of the surface recombination velocity is observed. The treatment of the n-GaAs(1 0 0) surface with the aqueous sulfide solution has a smaller impact on the surface recombination velocity. The different effect of aqueous and alcoholic sulfide solutions on the efficiency of surface passivation is caused by the different mechanisms of charge transfer at the semiconductor/solution interfaces.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
権利情報	© 2013, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
PISSN	0169-4332
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.apsusc.2012.09.076