Surface defect mediated electron hopping between nanoparticles separated by a nano-gap

Search Swinburne Research Bank

02 Physical Sciences | Juodkazis, Saulius

Home

List of Titles

Surface defect mediated electron hopping between nanoparticles separated by a nano-gap

Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/147930

Check Swinburne's subscriptions for full text availability

Title: Surface defect mediated electron hopping between nanoparticles separated by a nano-gap
Author(s): Juodkazis, Saulius; Rosa, Lorenzo
Abstract: The influence of defects induced by electron or ion beam lithography in the pre-surface region of the substrate on optical properties of plasmonic nanoparticles is analyzed. It is demonstrated that electron hopping between the defect sites of closely located nanoparticles is probable. The effect of electron transport via defect states will cause an apparent electrical connectivity between the nanoparticles and can be observed in extinction measurements. It is shown that this type of connectivity is important for gap sizes smaller than -10 nm and can reduce the actual light field enhancement. FDTD simulation scene: two nanoparticles separated by a nano-gap. The defects due to electron/ion lithography are present in the sub-surface region.
Publication type: Journal article
Research centre: Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics
Source: Physica Status Solidi: Rapid Research Letters, Vol. 4, no. 10 (Oct 2010), pp. 244-246
Publication year: 2010
FOR Code(s): 01 Mathematical Sciences; 02 Physical Sciences; 09 Engineering
Keyword(s): Defect-induced transport; Electron hopping; Electron tunneling; Plasmonics
Publisher: WILEY-VCH Verlag GmbH & Co. KGaA
ISSN: 1862-6254
Publisher URL: http://dx.doi.org/10.1002/pssr.201004226
Peer reviewed