Plasmonics Yields Efficient Electron Transport via Assembly of Shell-Insulated Au Nanoparticles

Chuanping Li; David Cahen; Ping Wang; Haijuan Li; Jie Zhang; Yongdong Jin

iScience (Oct 2018)

Plasmonics Yields Efficient Electron Transport via Assembly of Shell-Insulated Au Nanoparticles

Chuanping Li,
David Cahen,
Ping Wang,
Haijuan Li,
Jie Zhang,
Yongdong Jin

Affiliations

Chuanping Li: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China; University of Chinese Academy of Sciences, Beijing 100049, P. R. China
David Cahen: Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel
Ping Wang: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
Haijuan Li: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
Jie Zhang: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
Yongdong Jin: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China; University of Chinese Academy of Sciences, Beijing 100049, P. R. China; Corresponding author

Journal volume & issue: Vol. 8
pp. 213 – 221

Abstract

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Summary: Junctions built from metallic nanoparticles (NPs) can circumvent the diffraction limit and combine molecular/nanoelectronics with plasmonics. However, experimental advances in plasmon-assisted electron transport at the nanoscale have been limited. We construct junctions of a robust, molecule-free, suspended film, built solely from AuNPs, capped by SiO2 shells (Au@SiO2), which give insulating tunneling gaps up to 3.6 nm between the NPs. Current measured across monolayers of such AuNPs shows ultra-long-range, plasmon-enabled electron transport (P-transport), beyond the range of normal electron tunneling across insulators. This finding challenges the present understanding of electron transport in such systems and opens possibilities for future combinations of plasmonics and nanoelectronics. : Electronic Materials; Materials Science; Nanomaterials Subject Areas: Electronic Materials, Materials Science, Nanomaterials

Published in iScience

ISSN: 2589-0042 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Science
Website: http://www.cell.com/iscience/home

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