Injection currents into porous TiO2

Authors
Kytin, V Dittrich, T
Citation
V. Kytin et T. Dittrich, Injection currents into porous TiO2, PHYS ST S-A, 185(2), 2001, pp. 461-470
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH
ISSN journal
00318965 → ACNP
Volume
185
Issue
2
Year of publication
2001
Pages
461 - 470
Database
ISI
SICI code
0031-8965(20010616)185:2<461:ICIPT>2.0.ZU;2-3
Abstract
Electron injection into porous TiO2 is investigated by current-voltage, dar k current transients, impedance spectroscopy and photocurrent transients. S trong electron injection takes place and the existence of positive compensa ting charge has been shown. The compensating charge is originated by polari zation of the TiO2 nanoparticles. A scenario has been proposed for the proc esses of injection and formation of conducting channels in porous TiO2.