Thermoelectroluminescence in Anthracene and Anthracene Doped With Acridine Phosphors

In the present study, an effort is made to record the thermoelectroluminescence (TEL) glow curves and electroluminescence (EL) spectra for anthracene, acridine, and anthracene doped with acridine to determine the trap depth and escape frequency in these materials. For recording the TEL glow curves, the EL cell is heated at the study rate after 500 V_rms (RMS) of AC is supplied between the plates. At various field frequencies, the light output is recorded. To comprehend the luminescence processes and mechanisms in these films, three methods have been employed to determine the trap energy and escape frequency.