Photoelectrochemical response from CdSe-sensitized anodic oxidation TiO2 nanotubes

Autor:	Hao-Li Zhang, Zhen-Hong Sun, Hua-Yan Si
Rok vydání:	2008
Předmět:	Photocurrent Anatase Nanotube Materials science business.industry Annealing (metallurgy) chemistry.chemical_element Nanotechnology Titanium oxide law.invention Colloid and Surface Chemistry chemistry Quantum dot law Solar cell Optoelectronics business Titanium
Zdroj:	Colloids and Surfaces A: Physicochemical and Engineering Aspects. :604-607
ISSN:	0927-7757
DOI:	10.1016/j.colsurfa.2007.04.160
Popis:	Uniform TiO2 nanotube arrays were fabricated on titanium substrates by self-organized anodic oxidation. CdSe quantum dots (QDs) were assembled onto TiO2 nanotube layers, which serve as sensitizers. The photocurrent measurement shows that annealing is essential to increase the anatase phase and hence increase the photocurrent. Attachment of CdSe QDs dramatically increased the photocurrent of TiO2 nanotubes in the visible region. The photo-response of CdSe sensitized TiO2 also shows strong dependence to the QDs size. The possible mechanism for energy transfer between the CdSe QDs and the TiO2 nanotubes has been discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7c2e53a54ce0d2aecf2543c068623086 https://doi.org/10.1016/j.colsurfa.2007.04.160 Zobrazit plný text záznamu Full Text from ScienceDirect