Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
78 (2001), S. 1556-1558
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We report results on polarization-dependent photoinduced discharge in oriented fibers and films of ladder-type, electron-transporting polymer poly(benzimidazobenzophenanthroline). The photocarrier generation efficiency (φ) in the fiber, which is indicated by the rate of discharge, is found to be distinctly higher for light polarized parallel to the fiber axis (P(parallel)) compared to the radially perpendicular direction (P⊥). Similar results, with φ anisotropy ∼10, are obtained for oriented films. These observations are different from previously obtained results on polyparaphenylenevinylene. The results are compared with polarization-dependent steady-state photoconductivity measurements. We interpret these results on the basis of molecular and macroscopic features of the material. © 2001 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1354159
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