Electric field induced switching of the fluorescence of single semiconductor quantum rods

被引：120

作者：

Rothenberg, E

Kazes, M

Shaviv, E

Banin, U ^{[1
]}

机构：

[1] Hebrew Univ Jerusalem, Inst Chem, IL-91904 Jerusalem, Israel

[2] Hebrew Univ Jerusalem, Farkas Ctr Light Induced Proc, IL-91904 Jerusalem, Israel

[3] Hebrew Univ Jerusalem, Ctr Nanosci & Nanotechnol, IL-91904 Jerusalem, Israel

来源：

NANO LETTERS | 2005年 / 5卷 / 08期

关键词：

D O I：

10.1021/nl051007n

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The exceptional fluorescence properties of single CdSe quantum rods (ORs) arising from internal and external electric fields are studied. Reversible external field induced switching of the emission in single QRs is reported for the first time. This effect was correlated with local field induced emission intensity reduction and newly observed darkening mechanism. Bimodal spectral jumps under a zero field were also observed and assigned to charged exciton emission, a phenomenon that was likewise directly controlled through an external field. These phenomena point to the use of single QRs as spectrally tunable charge sensitive fluorophores with polarized emission in fluorescence tagging and optical switching applications.

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收藏

页码：1581 / 1586

页数：6

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