Journal
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
Volume 497, Issue -, Pages 505-517Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/15421400802462631
Keywords
1,3-indandione; charge transport; electron drift mobility; ionization potential; molecular glasses
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Arylmethylene-1,3-indandione-based molecular glasses were synthesized starting from 1,3-indandione. These compounds were found to constitute novel charge transporting materials and were examined by various techniques including differential scanning calorimetry, electron photoemission, cyclic voltammetry, and xerographic time-of-flight techniques, The electron photoemission spectra of the layers showed the ionization potentials of 5.8-5.9 eV. The cyclic voltammograms and the charge carrier inabilities measured by the time-of-flight technique confirm that synthesized molecular glasses are n-channel organic semiconducting materials. The electron drift mobility exceeds 10(-8) cm(2) V-1 s(-1) at strong electric fields.
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