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Proceedings Paper

Charge transport in amorphous molecular materials
Author(s): Yasuhiko Shirota; Satoyuki Nomura; Hiroshi Kageyama
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Paper Abstract

Charge transport in the glassy state of a variety of low molecular-weight organic compounds has ben studied. The hole drift mobility of the molecular glass was found to be of the order of 10-6 approximately 10-2 cm2V-1s-1 at an electric field of 1.0 by 105 Vcm-1 at room temperature, being higher than those of polymers and molecularly-doped polymer systems. The electric-field and temperature dependencies of charge- carrier drift mobility were analyzed in terms of the disorder formalism. The negative electric-field dependence of charge-carrier drift mobility was observed for the first time for the molecular glass. The relationship between molecular structure and charge-transport properties is discussed.

Paper Details

Date Published: 16 December 1998
PDF: 10 pages
Proc. SPIE 3476, Organic Light-Emitting Materials and Devices II, (16 December 1998); doi: 10.1117/12.332606
Show Author Affiliations
Yasuhiko Shirota, Osaka Univ. (Japan)
Satoyuki Nomura, Osaka Univ. (Japan)
Hiroshi Kageyama, Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 3476:
Organic Light-Emitting Materials and Devices II
Zakya H. Kafafi, Editor(s)

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