Abstract
Abstract -The excess electron and excess hole band structures of anthraquinone have been calculated at five different temperatures 293.5 K, 260.5 K, 201 K, 161 K and 103 K, using tight binding approximation, LCAO-MO's and SCF AO's. The calculated energy bands are highly anisotropic. The mobilities of electrons and holes are calculated in constant relaxation time (τ) approximation and their variation with temperature has been studied. The hole and electron mobilities decrease with increase in temperature following a relation μα T −n except electron mobility along b axis which shows a slight increase with increasing temperature following a μα T 0.06 dependence. Assuming anisotropic relaxation time the mobility anisotropies have been calculated.
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