Electrochemical preparation of cadmium selenide nanoparticles by the use of molecular templates
SCIE
SCOPUS
- Title
- Electrochemical preparation of cadmium selenide nanoparticles by the use of molecular templates
- Authors
- Choi, SJ; Woo, DH; Myung, NS; Kang, H; Park, SM
- Date Issued
- 2001-09
- Publisher
- ELECTROCHEMICAL SOC INC
- Abstract
- We report the electrochemical preparation of cadmium selenide nanoparticles at gold electrodes modified with molecular templates. The molecular templates were obtained by properly arranging thiolated beta -cyclodextrin self-assembled monolayers (SAMs) on gold electrodes. Selenium was first deposited on a SAM-modified gold electrode at an appropriate potential, followed by reduction to HSe- in a solution containing Cd2+, leading to the deposition of CdSe. The Cd codeposited at the time of CdSe deposition was removed by anodic dissolution at a potential where it was oxidized. Scanning electron microscopic pictures showed that Se-0 and cadmium selenide particles of smaller than 60 and 150 Mm diam, respectively, were deposited on the SAM-modified gold electrodes. Selenium particles of as small as 1-2 nm diam and similar to0.2 nm height were observed by in situ electrochemical scanning tunneling microscopy experiments during the early stages of electrochemical deposition. (C) 2001 The Electrochemical Society.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/11105
- DOI
- 10.1149/1.1385848
- ISSN
- 0013-4651
- Article Type
- Article
- Citation
- JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 148, no. 9, page. C569 - C573, 2001-09
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