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Title: Direct synthesis of Cu{sub 2}O-RGO nanocomposite on Cu foil by thermal evaporation method and its field emission study

Abstract

In this work, a facile one step thermal evaporation method for deposition of Cu{sub 2}O nanoparticles on RGO sheets to form Cu{sub 2}O-RGO nanocomposite is discussed. To the best of our knowledge, this is the first report on Cu{sub 2}O-RGO nanocomposite, directly grown on Cu foil by a simple thermal evaporation route. The as –prepared nanocomposite exhibits well dispersed Cu{sub 2}O nanoparticles distributed all over the graphene sheet. Field emission properties of the nanocomposite were investigated at a base pressure of 1*10{sup −8} torr. The turn on field, required to draw emission current density of 0.1µA/cm2, was found to be 3.8V/µm with a maximum emission current density of 80 µA/cm2 at an applied field of 6.8 V/µm. Moreover, the nanocomposite shows fairly good emission stability without significant degradation of emission current. The FE results seem to be encouraging, indicative of potential candidature of the Cu{sub 2}O-RGO nanocomposite emitter as an electron source for practical applications in vacuum nanoelectronic devices.

Authors:
; ; ; ;  [1]
  1. Centre for Advanced Studies in Material Science and Solid State Physics, Department of Physics, University of Pune, Pune-411 007 (India)
Publication Date:
OSTI Identifier:
22490336
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; CARBON OXIDES; COPPER; COPPER OXIDES; CURRENT DENSITY; DEPOSITION; ELECTRON SOURCES; EVAPORATION; FIELD EMISSION; FOILS; GRAPHENE; NANOCOMPOSITES; NANOPARTICLES; SHEETS; SYNTHESIS

Citation Formats

Bansode, Sanjeewani, Khare, Ruchita, Harpale, Kashmira, Kolhe, Pankaj, and More, Mahendra. Direct synthesis of Cu{sub 2}O-RGO nanocomposite on Cu foil by thermal evaporation method and its field emission study. United States: N. p., 2015. Web. doi:10.1063/1.4917822.
Bansode, Sanjeewani, Khare, Ruchita, Harpale, Kashmira, Kolhe, Pankaj, & More, Mahendra. Direct synthesis of Cu{sub 2}O-RGO nanocomposite on Cu foil by thermal evaporation method and its field emission study. United States. doi:10.1063/1.4917822.
Bansode, Sanjeewani, Khare, Ruchita, Harpale, Kashmira, Kolhe, Pankaj, and More, Mahendra. Wed . "Direct synthesis of Cu{sub 2}O-RGO nanocomposite on Cu foil by thermal evaporation method and its field emission study". United States. doi:10.1063/1.4917822.
@article{osti_22490336,
title = {Direct synthesis of Cu{sub 2}O-RGO nanocomposite on Cu foil by thermal evaporation method and its field emission study},
author = {Bansode, Sanjeewani and Khare, Ruchita and Harpale, Kashmira and Kolhe, Pankaj and More, Mahendra},
abstractNote = {In this work, a facile one step thermal evaporation method for deposition of Cu{sub 2}O nanoparticles on RGO sheets to form Cu{sub 2}O-RGO nanocomposite is discussed. To the best of our knowledge, this is the first report on Cu{sub 2}O-RGO nanocomposite, directly grown on Cu foil by a simple thermal evaporation route. The as –prepared nanocomposite exhibits well dispersed Cu{sub 2}O nanoparticles distributed all over the graphene sheet. Field emission properties of the nanocomposite were investigated at a base pressure of 1*10{sup −8} torr. The turn on field, required to draw emission current density of 0.1µA/cm2, was found to be 3.8V/µm with a maximum emission current density of 80 µA/cm2 at an applied field of 6.8 V/µm. Moreover, the nanocomposite shows fairly good emission stability without significant degradation of emission current. The FE results seem to be encouraging, indicative of potential candidature of the Cu{sub 2}O-RGO nanocomposite emitter as an electron source for practical applications in vacuum nanoelectronic devices.},
doi = {10.1063/1.4917822},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1665,
place = {United States},
year = {2015},
month = {6}
}