Electrochemistry and AFM characterization of thin film of SnSex compound formed on a slice-like gold plane electrode

Shang Wei; Zhang Xin; Chang Yanlong; Wang Chunming

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Electrochemistry and AFM characterization of thin film of SnSex compound formed on a slice-like gold plane electrode

Shang Wei 1,Zhang Xin 1 *,Chang Yanlong 2,Wang Chunming 2

1.School of Chemistry and Chemical Engineering, Lanzhou University

2.School of Chemistry and Chemical Engineering

*Correspondence author

#Submitted by

Subject:

Funding: 教育部博士点基金（No.20030730014）

Opened online: 6 November 2006

Accepted by: none

Citation: Shang Wei ,Zhang Xin ,Chang Yanlong .Electrochemistry and AFM characterization of thin film of SnSex compound formed on a slice-like gold plane electrode[OL]. [ 6 November 2006] http://en.paper.edu.cn/en_releasepaper/content/9306

The formation of the Ⅳ-ⅥA compound SnSex on a slice-like gold plane electrode at room temperature by electrochemical atomic layer epitaxy (EC-ALE) is reported here. In electrodeposition, surface limited reactions are used to form atomic layers of the elements making up a compound (Sn and Se) in a cycle. Cyclic voltammograms were used to determine approximate deposition potentials for each element. The amperometric I-t method was used to deposit the compound of SnSex. The film’s structure was characterized by Atomic Force Microscopy (AFM). The results were consistent with the layer-by-layer growth mode and the principles of atomic layer epitaxy. It was found that the thin films contain the properties of the photon crystals.

Keywords:Atomic layer epitaxy, Photon crystals，Slice-like gold plane electrode，Atomic Force Microscopy (AFM)

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