EFFECTS OF OXYGEN ON THE PHOTOCARRIER DYNAMICS IN C-60 - STUDIES OF TRANSIENT PHOTOCONDUCTIVITY AND TRANSIENT PHOTOINDUCED ABSORPTION

Authors
MOSES D LEE CH KRAABEL B YU G SRDANOV VI
Citation
D. Moses et al., EFFECTS OF OXYGEN ON THE PHOTOCARRIER DYNAMICS IN C-60 - STUDIES OF TRANSIENT PHOTOCONDUCTIVITY AND TRANSIENT PHOTOINDUCED ABSORPTION, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 256, 1994, pp. 217-224
Citations number
18
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
256
Year of publication
1994
Pages
217 - 224
Database
ISI
SICI code
1058-725X(1994)256:<217:EOOOTP>2.0.ZU;2-U
Abstract
The intrinsic dynamics of photoexcited carriers in oxygen-free C-60 fi lm and their remarkable evolution as the film is exposed to oxygen are revealed by transient photoconductivity (PC) and transient photoinduc ed absorption (PA) measurements at various temperatures, light intensi ties and photon energies. We demonstrate that exposure C-60 film to ox ygen creates deep traps which effectively localize the photocarriers, and in particular strongly effecting the long-lived transport mechanis m.