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UV-Vis absorption, photoluminescence (PL), and electroluminescence (EL) from heterostructure thin films made of 1,4-bis-(9-anthrylvinyl)-benzene (AVB) are investigated. UV-Vis absorption data are used to determine the band gap of the material which is estimated to be 2.28eV. It is observed that the AVB electroluminescence spectrum is broad, ranging from 400 to 850nm. The EL is obtained at a low voltage...
We report investigations of current-voltage (I-V), capacitance-voltage (C-V) and impedance-frequency (Z-ω) measurements performed on ITO/1,4-bis-(9-anthrylvinyl)-benzene (AVB)/Al light-emitting diodes under different bias conditions. These measurements give information about the nature of the conduction mechanism in AVB. It was found that the current is space-charge limited with traps (SCLC) and conductivity...
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