Nanocomposite Films Of P-Type Mos2 Nanosheets/N-Type Zno Nanowires: Sensitive And Low-Temperature Ppb-Level No2 Detection
文献类型: 外文期刊
作者: Jiang, Yadong;Tai, Huiling;Zhou, Yong;Li, Zhemin;Li, Xian
作者机构:
关键词: Gas Sensor; No2; Mos2; Nanocomposite Film; Low Temperature
期刊名称: MATERIALS LETTERS
ISSN: 0167-577X
年卷期: 2020 年 262 卷
页码:
摘要: Real-time monitoring of ultralow emission of NO2 gas is of great importance for environmental protection and human health. The effect of temperature and componential mass ratio of MoS2/ZnO composites on ppb-level NO2 sensing at low temperature were investigated here. It was found that MoS2/ZnO sensor with mass ratio of 1:2 exhibited the optimal sensor performance at 60 degrees C, i.e., high response of 63% toward 50 ppb NO2, sensitivity of 1.496/ppb, excellent repeatability and nice selectivity. These performances were among the best cases for MoS2 based NO2 detection, providing a vast potential in the future applications. In addition, an insight into the underlying sensing mechanism was conducted. (C) 2019 Elsevier B.V. All rights reserved.
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