The development of organic laser diodes requires the availability of organic thin films that can attain high mobility without luminescence quenching. A dithiophene-substituted indenofluorene compound was designed as a compromise between luminous efficiency and mobility and has been studied in organic light-emitting diode and organic field-effect transistor devices. A relatively high luminous efficiency of 1 cd/A at a luminance of 1400 cd/m(2) and a hole field-effect mobility of 1.2 X 10(-2) cm(2)/V s are reported in those two respective devices. (c) 2006 American Vacuum Society.