Suppressing the Fluorescence Blinking of Single Quantum Dots Encased in N-type Semiconductor Nanoparticles.
Suppressing the Fluorescence Blinking of Single Quantum Dots Encased in N-type Semiconductor Nanoparticles.
复制标题
抑制 N 型半导体纳米粒子包裹的单量子点的荧光闪烁
DOI:
10.1038/srep32662
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发表时间:
2016-09-08
影响因子:
4.6
通讯作者:
Jia S
中科院分区:
文献类型:
--
作者:
Li B;Zhang G;Wang Z;Li Z;Chen R;Qin C;Gao Y;Xiao L;Jia S
N-type semiconductor indium tin oxide (ITO) nanoparticles are used to effectively suppress the fluorescence blinking of single near-infrared-emitting CdSeTe/ZnS core/shell quantum dots (QDs), where the ITO could block the electron transfer from excited QDs to trap states and facilitate more rapid regeneration of neutral QDs by back electron transfer. The average blinking rate of QDs is significantly reduced by more than an order of magnitude and the largest proportion of on-state is 98%, while the lifetime is not considerably reduced. Furthermore, an external electron transfer model is proposed to analyze the possible effect of radiative, nonradiative, and electron transfer pathways on fluorescence blinking. Theoretical analysis based on the model combined with measured results gives a quantitative insight into the blinking mechanism.
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影响因子:
4.6
作者:
Fan Y;Liu H;Han R;Huang L;Shi H;Sha Y;Jiang Y
通讯作者:
Jiang Y
影响因子:
17.1
作者:
Hamada, Morihiko;Nakanishi, Shunsuke;Biju, Vasudevanpillai
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Biju, Vasudevanpillai
影响因子:
56.9
作者:
Klimov, VI;Mikhailovsky, AA;Bawendi, MG
通讯作者:
Bawendi, MG
影响因子:
3.7
作者:
Glennon, John J.;Buhro, William E.;Loomis, Richard A.
通讯作者:
Loomis, Richard A.
影响因子:
4.4
作者:
Kuno, M;Fromm, DP;Nesbitt, DJ
通讯作者:
Nesbitt, DJ