We investigate the random lasing characteristics of ZnO nanopowder suspended in methanol with the addition of organic-dye molecules. At a certain dye concentration, the random lasing intensity is enhanced, and the excitation threshold power is reduced. These improvements are explained by Förster-type resonant energy transfer from the dye-molecule donor to the ZnO-nanopowder acceptor.
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Firdaus et al. (2012) studied this question.
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