Abstract
The photophysical properties of new synthesized indolocarbazoles, i.e., indolo[3,2-b]carbazole and its derivatives, have been comparatively analyzed. It is shown that their photosensitivity (total photosensitivity to (5–8) × 10−2 (lx s)−1, spectral photosensitivity ∼105 cm2 J−1, and free carrier photogeneration quantum yield of 0.1) and transport (effective mobility in 5,11-dioctyl indolo[3,2-b]carbazole is more than 10−5 cm2/(V s)) parameters significantly exceed those of pentacene, which, among molecular media (organic crystals), exhibits the highest carrier photogeneration quantum yields. The high photoluminescence intensity of synthesized indolo[3,2-b]carbazole derivatives shows promise for their applicability in electroluminescent devices.
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Original Russian Text © V.M. Svetlichnyi, E.L. Alexandrova, L.A. Miagkova, N.V. Matushina, T.N. Nekrasova, A.R. Tameev, S.N. Stepanenko, A.V. Vannikov, V.V. Kudryavtsev, 2010, published in Fizika i Tekhnika Poluprovodnikov, 2010, Vol. 44, No. 12, pp. 1629–1635.
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Svetlichnyi, V.M., Alexandrova, E.L., Miagkova, L.A. et al. Photophysical properties of indolo[3,2-b]carbazoles as a promising class of optoelectronic materials. Semiconductors 44, 1581–1587 (2010). https://doi.org/10.1134/S1063782610120080
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DOI: https://doi.org/10.1134/S1063782610120080