Radiative Rate Enhancements in Ensembles of Hybrid Metal-Semiconductor Nanostructures

Wang, Yikuan and Yang, TY and Tuominen, MT. (2009) Radiative Rate Enhancements in Ensembles of Hybrid Metal-Semiconductor Nanostructures. Physical Review Letters, 102 (16). p. 163001. ISSN 00319007

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Abstract

We report on radiative decay rate modifications of dipole emitters in the proximity of anisotropic metal nanostructures. Using time, angle, and polarization resolved photoluminescence spectroscopy, we show that resonant interactions between surface plasmons in gold nanodisks and excitons in semiconductor nanocrystals require both spectral and orientational overlap resulting in radiative rate enhancements with directional characteristics. Numerical simulations of emission decay dynamics based on local electric field enhancements are in excellent agreement with experimental results.

Item Type: Article
Uncontrolled Keywords: FLUORESCENCE; LIFETIME; MOLECULE; SURFACE; EMITTERS; DECAY
InterNano Taxonomy: Nanoscale Objects and Nanostructured Materials
Collections: Nanomanufacturing Research Collection > Nanomanufacturing Nanoscale Science and Engineering Centers > Center for Hierarchical Manufacturing
Nanomanufacturing Research Collection
Depositing User: Danielle Federa
Date Deposited: 16 Jun 2009 19:51
Last Modified: 19 Sep 2011 21:47
URI: http://eprints.internano.org/id/eprint/88

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