Anomalous carrier life-time relaxation mediated by head group interaction in surface anchored MnSe quantum dots conjugated with albumin proteins

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• 作者：Runjun Sarma ; Dambarudhar Mohanta ; ^{best@tezu.ernet.in}
• 关键词：Nanostructures ; Crystal growth ; Electron microscopy ; Photoluminescence spectroscopy ; Luminescence ; Surface properties
• 刊名：Materials Chemistry and Physics
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：187
• 期：Complete
• 页码：46-53
• 全文大小：1581 K
• 卷排序：187

文摘

Surface anchored manganese selenide quantum dots (MnSe QDs) have been synthesized via a physico-chemical reduction route. Time resolved luminescence spectra of the QDs have displayed bi-exponential decay trend. Thioglycolic acid (TGA) coated QDs exhibited shorter lifetime as compared to sodium dodecyl sulfo-succinate (SDS) coated ones. Upon BSA conjugation, the average life time is four-fold enhanced in MnSe-SDS QDs. An efficient FRET process has been revealed in BSA conjugated TGA coated MnSe QDs.