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    • K S MARTIROSYAN

      Articles written in Bulletin of Materials Science

    • Volume 43 All articles Published: 12 August 2020 Article ID 0199

      Diffuse spectra model of photoluminescence in carbon quantum dots

      S E KUMEKOV N K SAITOVA K S MARTIROSYAN

      More Details Abstract Fulltext PDF

      The attractive aspect of excitation related to fluorescence nature in carbon quantum dots (CQD) has guided to several assumptions correlated with clusters size distribution, shapes as well as presence of different emissive states. Inthis study, a dimer–excimer model of photoluminescence (PL) in CQD describing discrete multiple electronic states for the excitation-dependent emission is described. The functional dependence of the characteristic width of the diffusespectra of PL on the size of a quantum dots are calculated. The effective width of PL spectrum can be tuned from 0.1 to 1 eV.

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