Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Suspended black phosphorus nanosheet gas sensors

Authors
Lee, GeonyeopKim, SuhyunJung, SunwooJang, SoohwanKim, Jihyun
Issue Date
10월-2017
Publisher
ELSEVIER SCIENCE SA
Keywords
black phosphorus; gas sensors; suspended structure
Citation
SENSORS AND ACTUATORS B-CHEMICAL, v.250, pp.569 - 573
Indexed
SCIE
SCOPUS
Journal Title
SENSORS AND ACTUATORS B-CHEMICAL
Volume
250
Start Page
569
End Page
573
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/81996
DOI
10.1016/j.snb.2017.04.176
ISSN
0925-4005
Abstract
The studies on enhancing the sensitivities of chemical sensors based on two-dimensional (2D) materials have been focused primarily on surface modifications including defect engineering, chemical doping, and incorporation of metal nanoparticles. Exfoliated black phosphorus (BP), which is one of the 2D materials, has attracted considerable attention because it offers higher sensitivity than other 2D materials (e.g., graphene and MoS2). In this study, for the first time, we attempt to increase the performance of BP chemical sensors to their theoretical limit by floating BP flakes on top of electrode posts in order to provide full (both sides) adsorption sites and avoid interface scattering effects. Our suspended BP gas sensors fabricated via dry transfer showed higher sensing performances than the conventional supported BP gas sensors (gas response was increased by approximately 23% at 200 ppm). In addition, faster response and recovery with high reproducibility were observed in suspended BP chemicals sensors than in the supported ones. Our work reveals the full potential of pristine BP-based chemical sensors and paves the way for the next-generation high performance 2D chemical sensors. (C) 2017 Elsevier B.V. All rights reserved.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles

qrcode

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

Altmetrics

Total Views & Downloads

BROWSE