A study of CdS nanoparticle surface states by potential-modulated sub-bandgap spectroscopy

Autor:	Rachel P. Doherty, D. Jason Riley, Elizabeth J. Tull, Stephen G. Hickey
Rok vydání:	2004
Předmět:	Absorption spectroscopy Chemistry Band gap General Chemical Engineering Photoelectrochemistry Analytical chemistry Cadmium sulfide Analytical Chemistry chemistry.chemical_compound Electrode Electrochemistry Absorption (electromagnetic radiation) Spectroscopy Surface states
Zdroj:	Journal of Electroanalytical Chemistry. 569:271-274
ISSN:	1572-6657
DOI:	10.1016/j.jelechem.2004.03.009
Popis:	The potential modulation spectrum of CdS Q-dots deposited on an optically transparent electrode has been investigated. A peak at 580 nm, that corresponded to bleaching of a sub-bandgap absorption, was observed. It was established that the peak was related to electron injection into the conduction band of the CdS Q-dots. The mechanism by which the absorption of surface states may be monitored using potential-modulated absorption spectroscopy is outlined.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6bddb246a4668555291946be099d4f68 https://doi.org/10.1016/j.jelechem.2004.03.009 Zobrazit plný text záznamu Full Text from ScienceDirect