TRAP-LIMITED ELECTRONIC TRANSPORT IN ASSEMBLIES OF NANOMETER-SIZE TIO2 PARTICLES

Authors
DEJONGH PE VANMAEKELBERGH D
Citation
Pe. Dejongh et D. Vanmaekelbergh, TRAP-LIMITED ELECTRONIC TRANSPORT IN ASSEMBLIES OF NANOMETER-SIZE TIO2 PARTICLES, Physical review letters, 77(16), 1996, pp. 3427-3430
Citations number
15
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
77
Issue
16
Year of publication
1996
Pages
3427 - 3430
Database
ISI
SICI code
0031-9007(1996)77:16<3427:TETIAO>2.0.ZU;2-T
Abstract
The characteristics of the transport of photogenerated electrons throu gh electrodes consisting of nanometer-size TiO2 particles were investi gated by intensity modulated photocurrent spectroscopy. Electronic tra nsport is controlled by trapping and detrapping of photogenerated elec trons in interfacial bandgap states, distributed in energy. The locali zation time of a trapped electron is controlled by the steady-state li ght intensity and interfacial kinetics.