Non-Blinking Semiconductor Colloidal Quantum Dots for Biology, Optoelectronics and Quantum Optics

Twinkle, twinkle: The blinking of semiconductor colloidal nanocrystals is the main inconvenience of these bright nanoemitters. There are various approaches for obtaining non‐blinking nanocrystals, one of which is to grow a thick coat of CdS on the CdSe core (see picture). Applications of this method...

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Bibliographic Details
Published in:Chemphyschem 2009-04, Vol.10 (6), p.879-882
Main Authors: Spinicelli, Piernicola, Mahler, Benoit, Buil, Stéphanie, Quélin, Xavier, Dubertret, Benoit, Hermier , Jean-Pierre
Format: Article
Language:English
Subjects:
Biology
Cadmium Compounds - chemistry
Chemistry
Colloidal state and disperse state
colloids
Colloids - chemistry
Electronics
Exact sciences and technology
Fluorescence
General and physical chemistry
luminescence
nanoparticles
Nanoparticles - chemistry
optical properties
Optics and Photonics
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Quantum Dots
Selenium Compounds - chemistry
Semiconductors
Sulfides - chemistry
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Summary:Twinkle, twinkle: The blinking of semiconductor colloidal nanocrystals is the main inconvenience of these bright nanoemitters. There are various approaches for obtaining non‐blinking nanocrystals, one of which is to grow a thick coat of CdS on the CdSe core (see picture). Applications of this method in the fields of optoelectronic devices, biologic labelling and quantum information processing are discussed. The blinking of semiconductor colloidal nanocrystals is the main inconvenience of these bright nanoemitters. For some years, research on this phenomenon has demonstrated the possibility to progress beyond this problem by suppressing this fluorescence intermittency in various ways. After a brief overview on the microscopic mechanism of blinking, we review the various approaches used to obtain non‐blinking nanocrystals and discuss the commitment of this crucial improvement to applications in the fields of optoelectronic devices, biologic labelling and quantum information processing. Twinkle, twinkle: The blinking of semiconductor colloidal nanocrystals is the main inconvenience of these bright nanoemitters. There are various approaches for obtaining non‐blinking nanocrystals, one of which is to grow a thick coat of CdS on the CdSe core (see picture). Applications of this method in the fields of optoelectronic devices, biologic labelling and quantum information processing are discussed.
ISSN:1439-4235
1439-7641
DOI:10.1002/cphc.200800827