THE INFRARED RESPONSE OF LEAD PHTHALOCYANINE THIN-FILMS TO CHLORINE AND IODINE DOPING

Authors
COLLINS RA ABASS AK KRIER A
Citation
Ra. Collins et al., THE INFRARED RESPONSE OF LEAD PHTHALOCYANINE THIN-FILMS TO CHLORINE AND IODINE DOPING, Thin solid films, 239(2), 1994, pp. 268-271
Citations number
28
Categorie Soggetti
Physics, Applied","Material Science","Physics, Condensed Matter
Journal title
Thin solid films → ACNP
ISSN journal
00406090
Volume
239
Issue
2
Year of publication
1994
Pages
268 - 271
Database
ISI
SICI code
0040-6090(1994)239:2<268:TIROLP>2.0.ZU;2-2
Abstract
Monoclinic thin films of PbPc were deposited on KBr disc substrates by a high-vacuum thermal-evaporation technique. The infrared response of the films was studied with respect to chlorine and iodine exposure in the range 400-4000 cm-1. Doping with chlorine and iodine led to a gen eration of acceptor levels within the band gap and led to a splitting of the valence band. The data was analysed to estimate the intraband t ransition energy between the valence subbands. The ionization energy o f the acceptor levels was estimated.