V. M. Svetlichnyi, E. L. Alexandrova, L. A. Myagkova, N. V. Matyushina, T. N. Nekrasova, A. R. Tameev, S. N. Stepanenko, A. V. Vannikov, V. V. Kudryavtsev, “Photophysical properties of indolo[3,2-b]carbazoles as a promising class of optoelectronic materials”, Fizika i Tekhnika Poluprovodnikov, 2010, Volume 44, Issue 12,Pages <nobr>1629

This article is cited in 24 papers

Amorphous, glassy, porous, organic, microcrystalline semiconductors, semiconductor composites

Photophysical properties of indolo[3,2-b]carbazoles as a promising class of optoelectronic materials

V. M. Svetlichnyi^a, E. L. Alexandrova^b, L. A. Myagkova^a, N. V. Matyushina^a, T. N. Nekrasova^a, A. R. Tameev^c, S. N. Stepanenko^c, A. V. Vannikov^a, V. V. Kudryavtsev^a

^a Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg
^b Ioffe Institute, St. Petersburg
^c Institute of Physical Chemistry and Electro Chemistry, Russian Academy of Sciences, Moscow

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) $\times$ 10$^{-2}$ (lx s)$^{-1}$, spectral photosensitivity $\sim$10$^5$ cm$^2$ 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$^{-5}$ cm$^2$/(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.

Received: 26.04.2010
Accepted: 26.04.2010