Biteen, Julie S. and Pacifici, Domenico and Lewis, Nathan S. and Atwater, Harry A. (2005) Enhanced Radiative Emission Rate and Quantum Efficiency in Coupled Silicon Nanocrystal-Nanostructured Gold Emitters. Nano Letters, 5 (9). pp. 1768-1773. ISSN 1530-6984. doi:10.1021/nl051207z. https://resolver.caltech.edu/CaltechAUTHORS:20170802-090931005
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Abstract
We report local-field-enhanced light emission from silicon nanocrystals close to a film of nanoporous gold. We resolve photoluminescence as the gold−Si nanocrystal separation distance is varied between 0 and 20 nm and observe a fourfold luminescence intensity enhancement concomitant with increases in the coupled silicon nanocrystal/nanoporous gold absorbance cross section and radiative decay rate. A detailed analysis of the luminescence data indicated a local-field-enhanced quantum efficiency of 58% for the Si nanocrystals coupled to the nanoporous gold layer.
| Item Type: | Article | ||||||||||
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| Additional Information: | © 2005 American Chemical Society. Received 25 June 2005. Published online 19 August 2005. Published in print 1 September 2005. This work was partially supported by NSF Grant CHE-0213589. | ||||||||||
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| Issue or Number: | 9 | ||||||||||
| DOI: | 10.1021/nl051207z | ||||||||||
| Record Number: | CaltechAUTHORS:20170802-090931005 | ||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20170802-090931005 | ||||||||||
| Official Citation: | Enhanced Radiative Emission Rate and Quantum Efficiency in Coupled Silicon Nanocrystal-Nanostructured Gold Emitters Julie S. Biteen, Domenico Pacifici, Nathan S. Lewis, and Harry A. Atwater Nano Letters 2005 5 (9), 1768-1773 DOI: 10.1021/nl051207z | ||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||
| ID Code: | 79743 | ||||||||||
| Collection: | CaltechAUTHORS | ||||||||||
| Deposited By: | Ruth Sustaita | ||||||||||
| Deposited On: | 02 Aug 2017 17:28 | ||||||||||
| Last Modified: | 15 Nov 2021 17:50 |
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