Non-linear effects in the quenching of fluorescent semiconductor nanoparticles by paramagnetic species

被引：51

作者：

Scaiano, J. C. ^{[1
]}

Laferriere, Marie ^{[1
]}

Galian, Raquel E. ^{[1
]}

Maurel, Vincent ^{[1
]}

Billone, Paul ^{[1
]}

机构：

[1] Univ Ottawa, Dept Chem, Ottawa, ON K1N 6N5, Canada

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2006年 / 203卷 / 06期

关键词：

D O I：

10.1002/pssa.200566186

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Quenching of quantum dot luminescence by nitroxides shows steep exponential behavior and is dependent on nanoparticle size, being most effective for the smaller particles. The interaction of CdSe nanoparticles with TEMPO (non-binding) and 4-amino-TEMPO (binding) has been examined using fluorescence and electron spin resonance techniques. The data suggest that quenching involves an electron exchange mechanism.

引用

页码：1337 / 1343

页数：7

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