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Titolo:
Nanosized tellurium clusters grown at thiolated beta-cyclodextrin molecular template modified electrodes: Electrochemical deposition and STM characterization
Autore:
Woo, DH; Choi, SJ; Han, DH; Kang, H; Park, SM;
Indirizzi:
Pohang Univ Sci & Technol, Dept Chem, Pohang 790784, South Korea Pohang Univ Sci & Technol Pohang South Korea 790784 790784, South Korea Pohang Univ Sci & Technol, Ctr Integrated Mol Syst, Pohang 790784, South Korea Pohang Univ Sci & Technol Pohang South Korea 790784 790784, South Korea
Titolo Testata:
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
fascicolo: 16, volume: 3, anno: 2001,
pagine: 3382 - 3386
SICI:
1463-9076(2001)3:16<3382:NTCGAT>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
SELF-ASSEMBLED MONOLAYERS; SCANNING-TUNNELING-MICROSCOPY; STRUCTURAL CHARACTERIZATION; OPTICAL-PROPERTIES; ORGANIC-SURFACES; GOLD; AU(111); ADSORPTION; CHEMISTRY; AU(100);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Park, SM Pohang Univ Sci & Technol, Dept Chem, Pohang 790784, South Korea Pohang Univ Sci & Technol Pohang South Korea 790784 South Korea
Citazione:
D.H. Woo et al., "Nanosized tellurium clusters grown at thiolated beta-cyclodextrin molecular template modified electrodes: Electrochemical deposition and STM characterization", PHYS CHEM P, 3(16), 2001, pp. 3382-3386

Abstract

We report the electrochemical preparation of tellurium nanoclusters at Au(111) electrodes modified with molecular templates. The molecular templates were obtained by properly arranging thiolated beta -cyclodextrin (beta -CD)self-assembled monolayers (SAMs) on Au(111) electrodes. Tellurium particles of as small as 1-2 nm. in diameter and similar to 2 Angstrom in height were observed by in situ electrochemical scanning tunneling microscope (STM) experiments during the electrochemical deposition. The seeding and growth kinetics of the nanoclusters were examined through voltammetry and STM measurements. The tellurium nanoclusters thus prepared on the mixed SAM-covered gold electrode were shown to have an n-type semiconductor property by photoelectrochemical experiments.

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Documento generato il 23/09/20 alle ore 13:01:33