Radiative lifetime of excitons in chalcogenide glasses

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    The radiative lifetime of triplet excitons, is studied here for the first time theoretically in chalcogenide glasses. A new timedependent exciton-spin-orbit-photon interaction operator is derived and rates of radiative recombination of triplet excitons and corresponding radiative lifetimes are calculated in three chalcogenide glasses, a-As2S3, a-As2Se3 and a-Se. Results agree quite well with the experimental results. The theory is quite general and can be applied to any amorphous materials, including organics.
    Original languageEnglish
    Pages (from-to)3013-3020
    Number of pages8
    JournalJournal of Optoelectronics and Advanced Materials
    Issue number10
    Publication statusPublished - 2007


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