Excitonic effects in bulk CuBr using Time Dependent DFT
نویسندگان
چکیده
With a view towards studying the effect of lowering the dimensionality on excitons, we have first investigated the excitonic effects in bulk CuBr, which is a direct band-gap semiconductor with zinc blende structure. We have employed time-dependent density functional theory for this investigation. Both, the random phase approximation and the bootstrap approximation, for the exchange-correlation kernel are used. Our results show a strong signature of excitons in bulk CuBr and we expect this to be further enhanced on lowering the dimension, a work planned in near future.
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