Abstract
The low temperature photoluminescence of Cd0.91Zn0.09Te grown by high pressure Bridgman method exhibits a neutral donor bound exciton emission (D0X) at 1.6560 eV with its excited state (D0X*) at 1.6580 eV and neutral acceptor bound exciton emissions (A0X) at 1.6457 eV and 1.6520 eV. Assuming a direct generation and subsequent relaxation of excitons at the D0X* state and the exciton transfer from the D0X to the A0X states, we demonstrate that the temporal evolution of the above emission bands is well reproduced by a set of rate equations.
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