BROWSE

Related Scientist

Researcher

나노 구조 물리 연구단
나노구조물리 연구단
more info

Electrical Transport Properties of Polymorphic MoS2

Cited 18 time in webofscience Cited 0 time in scopus
330 Viewed 80 Downloaded
Title
Electrical Transport Properties of Polymorphic MoS2
Author(s)
Jun Suk Kim; Jaesu Kim; Jiong Zhao; Sungho Kim; Jin Hee Lee; Youngjo Jin; Homin Choi; Byoung Hee Moon; Jung Jun Bae; Young Hee Lee; Seong Chu Lim
Publication Date
2016-08
Journal
ACS NANO, v.10, no.8, pp.7500 - 7506
Publisher
AMER CHEMICAL SOC
Abstract
The engineering of polymorphs in two-dimensional layered materials has recently attracted significant interest. Although the semiconducting (2H) and metallic (1T) phases are known to be stable in thin-film MoTe2, semiconducting 2H-MoS2 is locally converted into metallic 1T-MoS2 through chemical lithiation. In this paper, we describe the observation of the 2H, 1T, and 1T' phases coexisting in Li-treated MoS2, which result in unusual transport phenomena. Although multiphase MoS2 shows no transistor-gating response, the channel resistance decreases in proportion to the temperature, similar to the behavior of a typical semiconductor. Transmission electron microscopy images clearly show that the 1T and 1T' phases are randomly distributed and intervened with 2H-MoS2, which is referred to as the 1T and 1T' puddling phenomenon. The resistance curve fits well with 2D-variable range-hopping transport behavior, where electrons hop over IT domains that are bounded by semiconducting 2H phases. However, near 30 K, electrons hop over charge puddles. The large temperature coefficient of resistance (TCR) of multiphase MoS2, -2.0 x 10(-2) K-1 at 300 K, allows for efficient IR detection at room temperature by means of the photothermal effect © XXXX American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/2801
ISSN
1936-0851
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
Files in This Item:
Electrical Transport Properties of Polymorphic MoS2_ACS Nano(임성주).pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

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

Browse