Wade, Lawrence A. and Shapiro, Ian R. and Ma, Ziyang and Quake, Stephen R. and Collier, C. Patrick (2004) Correlating AFM Probe Morphology to Image Resolution for Single-Wall Carbon Nanotube Tips. Nano Letters, 4 (4). pp. 725-731. ISSN 1530-6984. https://resolver.caltech.edu/CaltechAUTHORS:20170802-095502414
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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.
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| Additional Information: | © 2004 American Chemical Society. Received 2 January 2004. Published online 17 February 2004. Published in print 1 April 2004. The authors thank Jason Hafner, Jim Hone, and Jordan Gerton for fruitful discussions and suggestions. We also thank Carol Garland for many patient hours of TEM imaging and NanoDevices, Santa Barbara, CA for providing direct growth nanotube tips for characterization. Wade, Ma, and Quake were supported by a grant from Pharmagenomix; Shapiro and Collier were supported by Caltech startup funds. Wade, Shapiro, and Collier were also supported by the Caltech President's Fund and NASA contract NAS7-1407. | ||||||||||||
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| Issue or Number: | 4 | ||||||||||||
| Record Number: | CaltechAUTHORS:20170802-095502414 | ||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20170802-095502414 | ||||||||||||
| Official Citation: | Correlating AFM Probe Morphology to Image Resolution for Single-Wall Carbon Nanotube Tips Lawrence A. Wade, Ian R. Shapiro, Ziyang Ma, Stephen R. Quake, and C. Patrick Collier Nano Letters 2004 4 (4), 725-731 DOI: 10.1021/nl049976q | ||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
| ID Code: | 79745 | ||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||
| Deposited By: | Ruth Sustaita | ||||||||||||
| Deposited On: | 02 Aug 2017 17:27 | ||||||||||||
| Last Modified: | 03 Oct 2019 18:23 |
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