Evidence for the Diffusion of Au Atoms into the Te UPD Layer Formed on a Au(111) Substrate

Kawamura, Hiroyuki; Takahasi, Masamitu; Hojo, Nobuhiko; Miyake, Masao; Murase, Kuniaki; Tamura, Kazuhisa; Uosaki, Kohei; Awakura, Yasuhiro; Mizuki, Jun'ichiro; Matsubara, Eiichiro

Evidence for the Diffusion of Au Atoms into the Te UPD Layer Formed on a Au(111) Substrate

Kawamura, Hiroyuki; Takahasi, Masamitu; Hojo, Nobuhiko et al.

Journal of The Electrochemical Society, 2002, 149(2), C83-C88

Permalink : https://hdl.handle.net/2115/50232

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アクセス権	open access
URI	https://hdl.handle.net/2115/50232
タイトル	Evidence for the Diffusion of Au Atoms into the Te UPD Layer Formed on a Au(111) Substrate
著者	Kawamura, Hiroyuki ; Takahasi, Masamitu ; Hojo, Nobuhiko ; Miyake, Masao ; Murase, Kuniaki ; Tamura, Kazuhisa ; Uosaki, Kohei ; Awakura, Yasuhiro ; Mizuki, Jun'ichiro ; Matsubara, Eiichiro
著者名 Kawamura, Hiroyuki
著者名 Takahasi, Masamitu
著者名 Hojo, Nobuhiko
著者名 Miyake, Masao
著者名 Murase, Kuniaki
著者名 Tamura, Kazuhisa
e-Rad_Researcher 20133697 著者名 Uosaki, Kohei
著者名 Awakura, Yasuhiro
著者名 Mizuki, Jun'ichiro
著者名 Matsubara, Eiichiro
言語	英語
キーワード	tellurium
	electrodeposits
	surface diffusion
	X-ray diffraction
	voltammetry (chemical analysis)
	gold
発行日	2002
出版者	The Electrochemical Society
収録物名	Journal of The Electrochemical Society
巻(号)	149(2)
ページ	C83-C88
抄録	The structure of a Te layer formed on a Au(111) substrate by underpotential deposition (UPD) in an electrolytic solution has been studied using in situ surface X-ray diffraction technique. The measurements were carried out for a series of samples which were kept at UPD potential for 4 to 59 h. The results revealed that the Te UPD layer is unstable. The top layer is analyzed to consist of the UPD Te atoms and Au atoms which diffuse from the Au(111) substrate. Also, the Te UPD layer does not have the structure with periodicity reported in previous works, such as (√3 x √3)R30° after ample time elapses. Stripping voltammetry for the Te UPD layer shows that the interaction between Te and Au increases with time, supporting the finding that the top layer is a mixture of Te and Au.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	© The Electrochemical Society, Inc. 2001. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in J. Electrochem. Soc. 2002 volume 149, issue 2, C83-C88.
PISSN	0013-4651
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1149/1.1429928