BROWSE

Related Researcher

Author

Baik, Jeong Min
Nano Energy and Environmental Materials Lab
Research Interests
  • Nanogenerators, antimicrobial material, catalysis, smart sensors

ITEM VIEW & DOWNLOAD

A highly sensitive gas-sensing platform based on a metal-oxide nanowire forest grown on a suspended carbon nanowire fabricated at a wafer level

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
A highly sensitive gas-sensing platform based on a metal-oxide nanowire forest grown on a suspended carbon nanowire fabricated at a wafer level
Author
Lim, YeongjinKim, SoosungKwon, Yeong MinBaik, Jeong MinShin, Heungjoo
Keywords
Metal-oxide nanowire forest; Suspended architecture; Carbon nanowire; Gas sensor; Carbon-MEMS
Issue Date
201805
Publisher
ELSEVIER SCIENCE SA
Citation
SENSORS AND ACTUATORS B-CHEMICAL, v.260, no., pp.55 - 62
Abstract
This paper presents a highly sensitive gas-sensing platform based on a ZnO nanowire (NW) forest circumferentially grown on a suspended single glassy carbon NW. The fabrication was carried out at a wafer level using only batch fabrication processes including carbon-microelectromechanical systems and the hydrothermal method. The suspended architecture and relatively high elastic modulus of the carbon nanowires facilitates selective functionalization on the suspended NW. The circumferentially distributed NW arrangement enhances the accessibility of gas molecule to the ZnO-NW sensing sites, thus facilitating highly sensitive gas sensing. The suspended architecture also enhances efficient mass transfer from the bulk. This novel suspended three-dimensional (3D) NW-based sensor configuration allows better NO2 gas sensing capabilities in terms of the limit of detection (9.45 ppb, S/N = 3), sensitivity (0.393 ppb−1), and linear sensing range (50–300 ppb) compared to the same type of ZnO-NW-based gas sensor fabricated in contact with the substrate.
URI
Go to Link
DOI
http://dx.doi.org/10.1016/j.snb.2017.12.167
ISSN
0925-4005
Appears in Collections:
MNE_Journal Papers
MSE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

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

MENU