Ontology highlight
ABSTRACT:
SUBMITTER: Zhang Y
PROVIDER: S-EPMC4603613 | biostudies-literature | 2015 Sep
REPOSITORIES: biostudies-literature
Zhang Yu Y Payne Daniel T DT Pang Chi L CL Fielding Helen H HH Thornton Geoff G
The journal of physical chemistry letters 20150817 17
The photochemistry of TiO2 has been studied intensively since it was discovered that TiO2 can act as a photocatalyst. Nevertheless, it has proven difficult to establish the detailed charge-transfer processes involved, partly because the excited states involved are difficult to study. Here we present evidence of the existence of hydroxyl-induced excited states in the conduction band region. Using two-photon photoemission, we show that stepwise photoexcitation from filled band gap states lying 0.8 ...[more]