期刊
NANO LETTERS
卷 11, 期 8, 页码 3366-3369出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl2017674
关键词
Fluorescence blinking; single molecule; quantum dot; fluorescence decay; charge trapping; off-state
类别
资金
- Office of Science, Office of Basic Energy Sciences, U.S. Department of Energy through the Division of Materials Research [DE-AC02-05CH11231]
- Lawrence Berkeley National Laboratory
Fluorescence decay times measured during the off-state of single CdSe/ZnS quantum dot blinking are found to decrease with increasing off-state duration, contradicting the charging model widely considered to explain the blinking phenomenon. The change in the nonradiative process of a short off-state duration compared to a long one is investigated here through simultaneous measurement of fluorescence decay and blinking behavior. The results are investigated in the framework of two models based on fluctuating trapping rates.
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