On the origin of suppression of free exciton no-phonon emission in ZnO tetrapods
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منابع مشابه
Localized suppression of longitudinal-optical-phonon-exciton coupling in bent ZnO nanowires.
Using confocal micro-Raman and photoluminescence spectroscopy, we studied bending effects on optical properties of individual ZnO nanowires. Raman spectroscopy shows that local tensile strain can be introduced by bending the nanowire. The strain is expected to reduce the band gap on the bent part and modify the local phonon-exciton interaction. The corresponding micro-photoluminescence spectra ...
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تاریخ انتشار 2010