標題: Oxygen-Sensitive Layered MoTe2 Channels for Environmental Detection
作者: Yang, Shih-Hsien
Lin, Che-Yi
Chang, Yuan-Ming
Li, Mengjiao
Lee, Ko-Chun
Chen, Ciao-Fen
Yang, Feng-Shou
Lien, Chen-Hsin
Ueno, Keiji
Watanabe, Kenji
Taniguchi, Takashi
Tsukagoshi, Kazuhito
Lin, Yen-Fu
電子物理學系
Department of Electrophysics
關鍵字: layered electronics;MoTe2;O-2 index;repeatable;oxygen detection
公開日期: 18-Dec-2019
摘要: The oxygen (O-2)-dependent resistance change of multilayered molybdenum ditelluride (MoTe2) channels was characterized. A variation of the channel resistance could reproducibly determine relative O-2 content (denoted as the O-2 index). We found that Joule heating in a layered MoTe2 field-effect transistor caused the O-2 index to decrease drastically from 100 to 12.1% in back gate modulation. Furthermore, Joule heating caused effective O-2 desorption from the MoTe2 surface and repeatable O-2 detection by multilayered MoTe2 channels was realized. This work not only explored the influence of O-2 on the electrical properties of multilayered MoTe2 channels but also revealed that MoTe2 channels are promising for sensing O-2 in an environmental condition.
URI: http://dx.doi.org/10.1021/acsami.9b15036
http://hdl.handle.net/11536/153626
ISSN: 1944-8244
DOI: 10.1021/acsami.9b15036
期刊: ACS APPLIED MATERIALS & INTERFACES
Volume: 11
Issue: 50
起始頁: 47047
結束頁: 47053
Appears in Collections:Articles