Open AccessPreparation and photoelectrochemical properties of multilayer TiO2/CdSe structures
Author(s) -
Liqun Li,
Aiping Liu,
Zhao Hai-Xin,
Can Cui,
Weihua Tang
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.108201
Subject(s) - materials science , photoelectrochemistry , thin film , absorbance , layer (electronics) , open circuit voltage , photoelectrochemical cell , optoelectronics , chemical engineering , nanotechnology , electrode , voltage , optics , electrolyte , electrochemistry , chemistry , physics , engineering , quantum mechanics
The red-brown CdSe thin films are electrochemically deposited on conductive ITO/TiO2 film surfaces, and the multilayer TiO2/CdSe structures are constructed. The microstructures and the photoelectrochemical properties of multilayer TiO2/CdSe structures are investigated. The results show that the CdSe thin films are grown preferentially along the (111) direction. The thickness and UV-Vis absorbance intensity of multilayer films increase with the increase of layer number of TiO2/CdSe structure. The results obtained from photoelectrochemistry measurement indicate that the optimal photoelectrochemical current response and open-circuit voltage are obtained in a biolayer TiO2/CdSe system, which therefore demonstrates the favorable photoelectrochemical properties.