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 similar to 10 nm and can reduce the actual light field enhancement. [GRAPHICS] FDTD simulation scene: two nanoparticles separated by a nano-gap. The defects due to electron/ion lithography are present in the sub-surface region. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Surface defect mediated electron hopping between nanoparticles separated by a nano-gap / Juodkazis, Saulius; Rosa, Lorenzo. - In: PHYSICA STATUS SOLIDI. RAPID RESEARCH LETTERS. - ISSN 1862-6254. - 4:10(2010), pp. 244-246. [10.1002/pssr.201004226]

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

ROSA, Lorenzo
2010

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 similar to 10 nm and can reduce the actual light field enhancement. [GRAPHICS] FDTD simulation scene: two nanoparticles separated by a nano-gap. The defects due to electron/ion lithography are present in the sub-surface region. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
2010
4
10
244
246
Surface defect mediated electron hopping between nanoparticles separated by a nano-gap / Juodkazis, Saulius; Rosa, Lorenzo. - In: PHYSICA STATUS SOLIDI. RAPID RESEARCH LETTERS. - ISSN 1862-6254. - 4:10(2010), pp. 244-246. [10.1002/pssr.201004226]
Juodkazis, Saulius; Rosa, Lorenzo
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1138514
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 24
  • ???jsp.display-item.citation.isi??? 22
social impact