Title: The oscillator strength of the biexciton–exciton transition
Abstract: The dipole moment matrix element due to the biexciton–exciton transition is expressed in terms of functional of the exciton and biexciton envelopes. In comparison to previous estimations of the biexciton–exciton transition probability the detailed band structure at band extrema was taken into account and the biexciton envelope (modified Hylleraas–Ore wave function) optimized by variational calculation was used. The square of the functional (overlap) of biexciton and exciton envelopes contributing to the oscillator strength of the biexciton–exciton transition, calculated for CdS is about one order, for CuCl two orders, of magnitude smaller when compared to that obtained by Hanamura. The calculated oscillator strength of the biexciton–exciton recombination in CdS is fbiex–ex=4×102.
Publication Year: 1999
Publication Date: 1999-05-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 6
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