Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5402564 | Journal of Luminescence | 2010 | 4 Pages |
Abstract
The emission at around 3.31Â eV (A-line) from three types of ZnO nanocrystals with different particle sizes (10-1000Â nm) was studied. The photoluminescence (PL) measurements were performed under different excitation densities and at different temperatures. The A-line emission exhibited a strong dependence on temperature and excitation power density. With increasing excitation density and temperature overlapping of the closely spaced first longitudinal optical (LO) phonon replica of free excitons by the A-line emission was observed.
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Physical and Theoretical Chemistry
Authors
S.S. Kurbanov, T.W. Kang,