Förster electronic excitation energy transfer upon adsorption of meso-tetra(3-pyridyl)porphyrin on InP@ZnS colloidal quantum dots
Journal of Luminescence(2018)
摘要
Adsorption of meso-tetra(3-pyridyl)porphyrin (TPyP) on InP@ZnS colloidal quantum dots (QDs) has been studied by fluorescence spectroscopy. It has been found that after addition of TPyP to a solution of InP@ZnS QDs, the processes of growth of the TPyP photoluminescence intensity and quenching of InP@ZnS QD photoluminescence occur. The kinetics of these processes in the time range from a few seconds to tens of hours is logarithmic, which indicates a dispersion of the activation energy of the dye adsorption. The increase in the photoluminescence intensity of TPyP upon the adsorption is due to Förster resonance energy transfer. The adsorption of TPyP leads to small changes in its spectral characteristics and luminescence lifetime.
更多查看译文
关键词
Colloidal quantum dots,Förster resonance energy transfer,Indium phosphide,Porphyrin
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要