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Title
Japanese: 
English:Blinking Kinetics of Single CdSe/ZnS Nanocrystals by Photon-Counting Statistics atHigh Temporal Resolution 
Author
Japanese: 李 尚潤, 磯島 隆史, 林 智広, 原 正彦.  
English: Sang Yun Lee, Takashi Isoshima, Tomohiro Hayashi, Masahiko Hara.  
Language English 
Journal/Book name
Japanese: 
English:e-Journal of Surface Science and Nanotechnology 13 June 2009 
Volume, Number, Page Vol. 7        p. 701-707
Published date June 2009 
Publisher
Japanese: 
English:The Surface Science Society of Japan 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL http://www.jstage.jst.go.jp/article/ejssnt/7/0/7_701/_article
 
DOI https://doi.org/10.1380/ejssnt.2009.701
Abstract Fluorescence intermittency (blinking) of semiconductor nanocrystals (NCs) is interpreted in terms of single photon-counting at high temporal resolution of tens of kiloframes per second (kfps) by fast imaging on ZnS- overcoated CdSe (CdSe/ZnS) NCs. We report herein a characterization method based on the threshold resulting from a double exponential distribution as a function of the photon interval to discriminate between “on” (bright) and “off ” (dark) states. Histograms of both the resolved “on” and “off ” lengths show that they obey single Poisson distributions with their duration constants, contrary to the conventional power-law distributions. We suggest that this characterization gives us more potential power to elucidate blinking kinetics of single CdSe/ZnS NCs on their physicochemical surroundings.

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