Improved Sensing Behaviors in Reduced Graphene Oxide Functionalized with Ni(OH)(2) Nanoparticles

Title
Improved Sensing Behaviors in Reduced Graphene Oxide Functionalized with Ni(OH)(2) Nanoparticles
Authors
김현우
Keywords
Nanoparticles; Reduced Graphene Oxide; Sensors
Issue Date
2015-11
Publisher
AMER SCIENTIFIC PUBLISHERS
Citation
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v. 15, NO 11, Page. 9002-9008
Abstract
In this paper, we detail improvements in the sensing properties of reduced graphene oxide (AGO), which were achieved through functionalization. The functionalization process utilizes graphene oxide suspensions, generating nanoparticles on the AGO surface mainly comprised of Ni(OH)(2) phase. Raman spectra indicate that functionalization increases the degree of disorder in RGOs. NO2 gas sensing tests reveal an approximate increase of 154% in the sensor response of the RGOs after functionalization. Possible mechanisms for improving sensing responses via functionalization are discussed. The enhancement is due to the spillover effect, to the increase of the sensor surface by the catalytic particles, to the reduction of AGO conduction volume through the generation of depletion region, and to the resistance modulation of the heterojunctions.
URI
http://www.ingentaconnect.com/content/asp/jnn/2015/00000015/00000011/art00116http://hdl.handle.net/20.500.11754/29144
ISSN
1533-4880; 1533-4899
DOI
http://dx.doi.org/10.1166/jnn.2015.11571
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ETC
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE