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Published on: October 13, 2017
Temperature and Wavelength Dependence of Energy Transfer Process Between Quantized States and Surface States in CdSe
Lei Zhang1, Qinfeng Xu2, Mingliang Liu1
1School of Physics and Optoelectronic Engineering, Ludong University, YanTai, 264025, China.
Abstract:
Temperature and wavelength dependence of energy transfer (ET) process between quantized states and surface trap states of CdSe quantum dots was investigated, respectively. The experimental results demonstrate that the photoluminescence (PL) intensity of the quantized states decreases with respect to the trap state emission, especially at lower temperatures. The observed ET process between quantized states and trap states which is influenced by the thermal population behavior. At the same temperature, the silver films can greatly enhance the energy transfer (ET) rate from the quantized states to trap states due to surface plasmonic coupling effect.
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