Phonon screening in photochemically doped zinc oxide nanocrystals
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説明
<jats:p>Persistent absorption bleaching and resonant Raman scattering are measured in ZnO nanocrystal films photochemically doped with electrons. A prominent intensity change and a slight redshift are observed in the Raman spectra as a result of the doping. The redshift is assigned to screening of the LO phonon by the doped electrons and intensity change is regarded as a result of the change in the capture rate of the excitons by the surface states.</jats:p>
収録刊行物
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- Journal of Applied Physics
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Journal of Applied Physics 103 2008-04-01
AIP Publishing