Studies on the surface of TiO2(001) single crystal by surface photovoltagespectroscopy

Authors
Hui, Z Xu, JJ Xie, TF Wang, DJ Li, TJ Sun, CC
Citation
Z. Hui et al., Studies on the surface of TiO2(001) single crystal by surface photovoltagespectroscopy, CHEM J CH U, 20(9), 1999, pp. 1458-1459
Citations number
7
Categorie Soggetti
Chemistry
Journal title
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN journal
02510790 → ACNP
Volume
20
Issue
9
Year of publication
1999
Pages
1458 - 1459
Database
ISI
SICI code
0251-0790(199909)20:9<1458:SOTSOT>2.0.ZU;2-J
Abstract
TiO2(001) surface of rutile TiO2 single crystals was studied by surface pho tovoltage spectrum(SPS) and electrical field-induced surface photovoltage s pectrum (EFISPS) technique. The two SPS responses peak at 360 nm and 410 nm were identified as direct transition and indirect transition of TiO2(001) plane, respectively. And it was found that the indirect transition of TiO2 was very sensitive to the external electrical field. These results indicate that SPS and EFISPS are effective means to study the opto-electrical chara cteristics of semiconductors.