ELECTRONIC TRANSPORT IN A MODEL TETRAPHENYLBENZIDINE MAIN-CHAIN POLYMER - DIRECT COMPARISON OF TIME-OF-FLIGHT HOLE DRIFT MOBILITY AND ELLECTROCHEMICAL DETERMINATIONS OF HOLE DIFFUSION

Authors
ABKOWITZ MA FACCI JS LIMBURG WW
Citation
Ma. Abkowitz et al., ELECTRONIC TRANSPORT IN A MODEL TETRAPHENYLBENZIDINE MAIN-CHAIN POLYMER - DIRECT COMPARISON OF TIME-OF-FLIGHT HOLE DRIFT MOBILITY AND ELLECTROCHEMICAL DETERMINATIONS OF HOLE DIFFUSION, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 230, 1993, pp. 575-580
Citations number
4
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
230
Year of publication
1993
Pages
575 - 580
Database
ISI
SICI code
1058-725X(1993)230:<575:ETIAMT>2.0.ZU;2-P
Abstract
The first direct comparison of time of flight (TOF) hole drift mobilit ies with a novel dry film electrochemical determination of hole diffus ivity is reported in a polytetraphenylbenzidene (PTPB) main chain poly mer. In conjunction with the Einstein relation, electrochemical diffus ivity measurements provide a means for determining the zero field hole mobility and its apparent activation. It is demonstrated that TOF dri ft mobility vs. field data extrapolated to zero field (from In mu vs. E1/2 plots made over the range 10(3)-10(6) V/cm) and electrochemical d ata are fully convergent over a range of temperatures. The zero field activation for holes in PTPB is 0.53eV from both measurements.