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Literature DB >> 12225166

Surface-enhanced emission from single semiconductor nanocrystals.

K T Shimizu¹, W K Woo, B R Fisher, H J Eisler, M G Bawendi.

Abstract

The fluorescence behavior of single CdSe(ZnS) core-shell nanocrystal (NC) quantum dots is dramatically affected by electromagnetic interactions with a rough metal film. Observed changes include a fivefold increase in the observed fluorescence intensity of single NCs, a striking reduction in their fluorescence blinking behavior, complete conversion of the emission polarization to linear, and single NC exciton lifetimes that are >10(3) times faster. The enhanced excited state decay process for NCs coupled to rough metal substrates effectively competes with the Auger relaxation process, allowing us to observe both charged and neutral exciton emission from these NC quantum dots.

Entities: Chemical Disease

Year: 2002 PMID： 12225166 DOI： 10.1103/PhysRevLett.89.117401

Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161

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Cited

34 in total

1. Single quantum dot controls a plasmonic cavity's scattering and anisotropy.

Authors: Thomas Hartsfield; Wei-Shun Chang; Seung-Cheol Yang; Tzuhsuan Ma; Jinwei Shi; Liuyang Sun; Gennady Shvets; Stephan Link; Xiaoqin Li
Journal: Proc Natl Acad Sci U S A Date: 2015-09-08 Impact factor: 11.205

2. Metallic nanoparticle shape and size effects on aluminum oxide-induced enhancement of exciton-plasmon coupling and quantum dot emission.

Authors: Waylin J Wing; Seyed M Sadeghi; Rithvik R Gutha; Quinn Campbell; Chuanbin Mao
Journal: J Appl Phys Date: 2015-09-22 Impact factor: 2.546

Surface-enhanced emission from single semiconductor nanocrystals.

1. Single quantum dot controls a plasmonic cavity's scattering and anisotropy.

2. Metallic nanoparticle shape and size effects on aluminum oxide-induced enhancement of exciton-plasmon coupling and quantum dot emission.

3. Surface-enhanced Raman scattering based nonfluorescent probe for multiplex DNA detection.

4. Photonics: How nanocrystals lost their blink.

5. Suppressed Blinking in Single Quantum Dots (QDs) Immobilized Near Silver Island Films (SIFs).

6. Bright infrared quantum-dot light-emitting diodes through inter-dot spacing control.

7. Enhancing spontaneous emission rates of molecules using nanopatterned multilayer hyperbolic metamaterials.

Review 8. Origin and control of blinking in quantum dots.

9. 3D super-resolution imaging with blinking quantum dots.

Review 10. Plasmon-controlled fluorescence: a new paradigm in fluorescence spectroscopy.