Enhanced Radiative Emission Rate and Quantum Efficiency in Coupled Silicon Nanocrystal-Nanostructured Gold Emitters

Creators: Biteen, Julie S.; Pacifici, Domenico; Lewis, Nathan S.; Atwater, Harry A.

Style

An error occurred while generating the citation.

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.

Additional Information

© 2005 American Chemical Society. Received 25 June 2005. Published online 19 August 2005. Published in print 1 September 2005. The acknowledgement should be the following: Expert scientific and technical assistance from Jonah Erlebacher are gratefully acknowledged. A portion of this work was supported by NSF Grant CHE-0213589. This work was also partially supported by the Air Force Office of Scientific Research (MURI award #FA9550-04-1-0434).

Errata

Page 1773. The acknowledgement should be the following: Expert scientific and technical assistance from Jonah Erlebacher are gratefully acknowledged. A portion of this work was supported by NSF Grant CHE-0213589. This work was also partially supported by the Air Force Office of Scientific Research (MURI award #FA9550-04-1-0434).09/17/2005

Attached Files

Supplemental Material - nl051207zsi20050728_054658.pdf

Files

nl051207zsi20050728_054658.pdf

Files (126.4 kB)

Name	Size	Download all
nl051207zsi20050728_054658.pdf md5:a7d30a7baca16e7c29051919dfb0eb93	126.4 kB	Preview Download

Additional details

	All versions	This version
Views	0	0
Downloads	0	0
Data volume	0 Bytes	0 Bytes