標題: Blinking suppression of single quantum dots in agarose gel
作者: Ko, H. C.
Yuan, C. T.
Lin, S. H.
Tang, Jau
應用化學系
Department of Applied Chemistry
關鍵字: cadmium compounds;charge exchange;colloids;fluorescence;gels;II-VI semiconductors;semiconductor quantum dots;wide band gap semiconductors;zinc compounds
公開日期: 4-一月-2010
摘要: Fluorescence blinking is commonly observed in single molecule/particle spectroscopy, but it is an undesirable feature in many applications. We demonstrated that single CdSe/ZnS quantum dots in agarose gel exhibited suppressed blinking behavior. In addition, the long-time exponential bending tail of the power-law blinking statistics was found to be influenced by agarose gel concentration. We suggest that electron transfer from the light state to the dark state might be blocked due to electrostatic surrounding of gel with inherent negatively charged fibers.
URI: http://dx.doi.org/10.1063/1.3280386
http://hdl.handle.net/11536/5984
ISSN: 0003-6951
DOI: 10.1063/1.3280386
期刊: APPLIED PHYSICS LETTERS
Volume: 96
Issue: 1
結束頁: 
顯示於類別:期刊論文


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