16 December 1998 Charge transport in amorphous molecular materials
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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.
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Yasuhiko Shirota, Yasuhiko Shirota, Satoyuki Nomura, Satoyuki Nomura, Hiroshi Kageyama, Hiroshi Kageyama, "Charge transport in amorphous molecular materials", Proc. SPIE 3476, Organic Light-Emitting Materials and Devices II, (16 December 1998); doi: 10.1117/12.332606; https://doi.org/10.1117/12.332606
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