Blinking Behavior of Surface-Defect and Impurity Luminescence in Nondoped and Mn<SUP>2+</SUP>-Doped CdS Nanocrystals
Blinking Behavior of Surface-Defect and Impurity Luminescence in Nondoped and Mn<SUP>2+</SUP>-Doped CdS Nanocrystals
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非掺杂和Mn<SUP>2</SUP>掺杂CdS纳米晶表面缺陷和杂质发光的闪烁行为
DOI:
10.1143/jpsj.78.083705
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发表时间:
2009
影响因子:
1.7
通讯作者:
A. Ishizumi and Y. Kanemitsu
中科院分区:
文献类型:
--
作者:
M. Ichimiya;K. Mochizuki;M. Ashida;H. Yasuda;H. Ishihara and T. Itoh;小山剛史;A. Ishizumi and Y. Kanemitsu
We report on the photoluminescence (PL) blinking behavior of nondoped and Mn-doped CdS/ZnS nanocrystals studied using single nanocrystal spectroscopy at room temperature. The blinking phenomenon is clearly observed in the surface-defect luminescence of nondoped single CdS/ZnS nanocrystals. In Mn-doped CdS/ZnS nanocrystals, however, PL blinking is markedly suppressed, and the Mn2+-related PL has a longon-time. Our findings indicate that Mn2+ions are excited by fast energy transfer from photoexcited excitons in both neutral and ionized CdS/ZnS nanocrystals. We discuss energy transfer processes from the host nanocrystals to the Mn2+ions.
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影响因子:
8.6
作者:
J. Seufert;G. Bacher;M. Scheibner;A. Forchel;Sang Hoon Lee;M. Dobrowolska;J. Furdyna
通讯作者:
J. Furdyna
影响因子:
4
作者:
Kanemitsu, Y;Matsubara, H;White, CW
通讯作者:
White, CW
影响因子:
4
作者:
Ishizumi, A;Kanemitsu, Y
通讯作者:
Kanemitsu, Y
影响因子:
--
作者:
D. Langer;H. J. Richter
通讯作者:
H. J. Richter