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N,N'-Bis(2,2-diphenylvinyl)-N,N'-diphenylbenzidines with reactive functional groups as hole-transporting glass-forming materials

R. PASPIRGELYTE1, J.V. GRAZULEVICIUS1,* , S. GRIGALEVICIUS1, V. JANKAUSKAS2

Affiliation

  1. Department of Organic Technology, Kaunas University of Technology, Radvilenu plentas 19, LT50254, Kaunas, Lithuania
  2. Department of Solid State Electronics, Vilnius University, Sauletekio aleja 9, LT10222, Vilnius, Lithuania

Abstract

Derivatives of N,N'-bis(2,2-diphenylvinyl)-N,N'-diphenylbenzidine containing reactive functional groups were synthesized by the multi-step synthetic rout. The materials were examined by various techniques including differential scanning calorimetry, UV and fluorescence spectrometry, electron photoemission and time of flight techniques. The electron photoemission spectra of layers of the amorphous materials showed the ionization potentials of 5.35 eV. Hole drift mobilities in the layers of bisphenol Z polycarbonate containing 33-50% of the derivatives of N,N'-bis(2,2-diphenylvinyl)-N,N'-diphenylbenzidine range from 1.6×10 -5 to 1.3×10 -4 cm2/Vs at high electric fields..

Keywords

Electroactive material, Reactive functional group, Hole drift mobility, Ionization potential.

Submitted at: Aug. 26, 2009
Accepted at: Nov. 19, 2009

Citation

R. PASPIRGELYTE, J.V. GRAZULEVICIUS, S. GRIGALEVICIUS, V. JANKAUSKAS, N,N'-Bis(2,2-diphenylvinyl)-N,N'-diphenylbenzidines with reactive functional groups as hole-transporting glass-forming materials, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 11, pp. 1605-1610 (2009)