Kumar, N. ; Narayan, K. S. (2001) Polarization-dependent discharge in fibers of a semiconducting ladder-type polymer Applied Physics Letters, 78 (11). 1556 - 1558. ISSN 0003-6951
|
PDF
- Author Version
104kB |
Official URL: http://apl.aip.org/resource/1/applab/v78/i11/p1556...
Related URL: http://dx.doi.org/10.1063/1.1354159
Abstract
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||) 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.
Item Type: | Article |
---|---|
Source: | Copyright of this article belongs to American Institute of Physics. |
Keywords: | Conducting Polymers; Polymer Fibres; Polymer Films; Photoconducting Materials; Organic Semiconductors; Light Polarisation; Polymer Structure; Discharges (electric); Surface Potential; Electroluminescence |
ID Code: | 60060 |
Deposited On: | 08 Sep 2011 10:04 |
Last Modified: | 18 May 2016 10:22 |
Repository Staff Only: item control page