Centre for Nanotechnology Innovation, Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa.
Centre for Nanotechnology Innovation, Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa.
Spectrochim Acta A Mol Biomol Spectrosc. 2018 Nov 5;204:629-639. doi: 10.1016/j.saa.2018.06.098. Epub 2018 Jun 28.
The synthesis of asymmetric benzothiazole substituted phthalocyanines (complexes 3 to 5) and their covalent attachment to glutathione (GSH) functionalized quantum dots (QDs) are reported in this work. Additionally, their photophysical and nonlinear optical properties were investigated. A decrease in the fluorescence quantum yield with corresponding increase in the triplet quantum yield was observed when the complexes were covalently linked to glutathione (GSH) functionalized cadmium telluride (CdTe) quantum dots. Reverse saturable absorption was found to be predominantly dominated by excited state absorption. The observed limiting threshold values range from 0.29-0.75 J/cm.
本文报道了不对称苯并噻唑取代酞菁（配合物 3 至 5）的合成及其与谷胱甘肽（GSH）功能化量子点（QDs）的共价连接，并研究了它们的光物理和非线性光学性质。当配合物与谷胱甘肽（GSH）功能化的碲化镉（CdTe）量子点共价连接时，荧光量子产率降低，相应的三重态量子产率增加。发现反饱和吸收主要由激发态吸收主导。观察到的极限阈值范围为 0.29-0.75 J/cm。
