Surface photovoltage spectra and photoelectrochemical properties of   semiconductor-sensitized nanostructured TiO2 electrodes

doi:10.1016/S0040-6090(01)00771-4

CORC > 北京大学 > 化学与分子工程学院

	Surface photovoltage spectra and photoelectrochemical properties of semiconductor-sensitized nanostructured TiO2 electrodes
	Qian, XM ; Qin, DQ ; Song, Q ; Bai, YB ; Li, TJ ; Tang, XY ; Wang, EK ; Dong, SJ
刊名	固体薄膜
	2001
关键词	surface photovoltage spectra photoelectrochemistry semiconductors nanostructures BLOCK-COPOLYMER MICELLE THIN-FILMS SOLAR-CELLS CONVERSION EFFICIENCIES NANOCRYSTALLINE TIO2 POLYCRYSTALLINE TIO2 CARRIER TRANSPORT TITANIUM-DIOXIDE CHARGE-TRANSFER CDS
DOI	10.1016/S0040-6090(01)00771-4
英文摘要	Three kinds of TiO2 nanostructured thin films and their CdS-sensitized films, consisting of different sizes of TiO2 nanoparticles prepared with different methods, have been investigated. The surface photovoltage spectra (SPS) measurements indicate that the density of surface states on TiO2 is likely dependent upon the details of prepared methods. TiO2 particles prepared from basic sol have more surface states than that prepared from acidic sol. When the TiO2 thin films prepared using the TiO2 sols were sensitized by CdS particles, the SPS responses relative to the surface states on TiO2 from 350 to 800 nm were decreased. The photoelectrochemical properties of nanostructured TiO2 electrodes suggest that the fewer the surface states and the smaller the particle sizes of TiO2, the larger the photocurrent response. For CdS sensitized TiO2 thin film electrode, it is shown that the semiconductor sensitization is an efficient way to decrease the influence of surface states on the charge separation, and can improve the intensity of photocurrent response. (C) 2001 Elsevier Science B.V. All rights reserved.; Materials Science, Multidisciplinary; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter; SCI(E); EI; 61; ARTICLE; 1-2; 152-161; 385
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/248051]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Qian, XM,Qin, DQ,Song, Q,et al. Surface photovoltage spectra and photoelectrochemical properties of semiconductor-sensitized nanostructured TiO2 electrodes[J]. 固体薄膜,2001.
APA	Qian, XM.,Qin, DQ.,Song, Q.,Bai, YB.,Li, TJ.,...&Dong, SJ.(2001).Surface photovoltage spectra and photoelectrochemical properties of semiconductor-sensitized nanostructured TiO2 electrodes.固体薄膜.
MLA	Qian, XM,et al."Surface photovoltage spectra and photoelectrochemical properties of semiconductor-sensitized nanostructured TiO2 electrodes".固体薄膜 (2001).