title: Free-Standing Monolayered Metallic Nanoparticle Networks as Building Blocks for Plasmonic Nanoelectronic Junctions.
abstract: The effective coupling of optical surface plasmons (SPs) and electron transport in a plasmonic-electronic device is one of the fundamental issues in nanoelectronics and the emerging field of plasmonics, and offer promise in providing a solution to next generation nanocircuits in which all coupling is in the near field. Attempts toward this end, however, are limited because of the integration challenge to compatible nanodevices. To date, direct electrical detection of SP-electron coupling from metallic nanostructures alone are not reported, and thus it remains a great experimental challenge. In this paper, we succeed in preparing a new suspended-film-type nanoelectronic junction, in which free-standing 2D fractal nanoparticle networks act as plasmonically active nanocomponents. Direct electrical detection of optical collective SPs was evidenced by photocurrent response of the junction upon illumination. Room-temperature I-V characteristics, differing from nonlinear to Ohmic behaviors, are found to be sensitive to the nanometer-scale morphology changes of the nanomembranes. The finding and approach may enable the development of advanced plasmonic nanocircuits and new nanoelectronics, nanophotonics, and (solar) energy applications.
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 130022 Jilin, China.|University of Chinese Academy of Sciences , 100049 Beijing, China.
authors.forename: Haoxi
authors.initials: H
authors.lastname: Wu
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 130022 Jilin, China.|University of Chinese Academy of Sciences , 100049 Beijing, China.
authors.forename: Chuanping
authors.initials: C
authors.lastname: Li
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 130022 Jilin, China.|University of Chinese Academy of Sciences , 100049 Beijing, China.
authors.forename: Zhenlu
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 130022 Jilin, China.
authors.forename: Haijuan
authors.initials: H
authors.lastname: Li
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 130022 Jilin, China.
authors.forename: Yongdong
authors.initials: Y
authors.lastname: Jin
keywords: free-standing; junction; nanoelectronics; photoresponse; plasmonics