Photoinduced charge transfer and charge carrier generation in polysilane films containing C[sub 60] molecules

Journal Article · Mon Sep 13 00:00:00 EDT 1993 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.110746· OSTI ID:6299855

Kepler, R G; Cahill, P A ^[1]

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1. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

We have studied charge carrier generation and transport in poly(methylphenylsilane) films containing C[sub 60] molecules, and have found that the quantum efficiency for carrier generation is increased by more than an order of magnitude over poly(methylphenylsilane) films not containing C[sub 60] and that hole transport is unaffected. We also measured the electroabsorption spectrum of the composite films and found no evidence for charge transfer transitions. We conclude that electrons are transferred from poly(methylphenylsilane) to C[sub 60] molecules that have been excited to their lowest energy absorption band at about 2 eV.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6299855
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 63:11; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
ABSORPTION SPECTRA
CARBON
CHARGE CARRIERS
DOPED MATERIALS
EFFICIENCY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRO-OPTICAL EFFECTS
ELECTRON TRANSFER
ELEMENTS
FILMS
FULLERENES
HOLES
MATERIALS
NONMETALS
PHOTOCONDUCTIVITY
PHYSICAL PROPERTIES
POLYMERS
QUANTUM EFFICIENCY
SPECTRA