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Low-temperature high-sensitivity NO2 gas sensor based on MoS2/WO3
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Yuhan LI1, Tengfei ZHANG1, Tianjun XU1, Hulin ZHANG1, 2, Kai ZHUO1, 2
Electronic Components and Materials | 2025, 44(10) : 1160 - 1168
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Electronic Components and Materials | 2025, 44(10): 1160-1168
• Research & Development •
Low-temperature high-sensitivity NO2 gas sensor based on MoS2/WO3
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Yuhan LI1, Tengfei ZHANG1, Tianjun XU1, Hulin ZHANG1, 2, Kai ZHUO1, 2
Affiliations
  • 1College of Electronic Information Engineering, Taiyuan University of Technology, Taiyuan 030024, China
  • 2College of Integrated Circuits, Taiyuan University of Technology, Taiyuan 030024, China
Published: 2025-10-05 doi: 10.14106/j.cnki.1001-2028.2025.0026
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In recent years，tungsten oxide（WO3）nanomaterials have garnered significant attention in the field of gas sensors. However，their practical applications are limited by drawbacks such as high operating temperatures and low sensitivity. A series of MoS2/WO3 nanocomposites were synthesized via a hydrothermal method. Gas-sensing tests for nitrogen dioxide（NO2）demonstrated that these composites exhibit excellent sensing performance over a working temperature range of 20-180℃ and an NO2 concentration range of 1ppm-100ppm. Notably，the MoS2/WO3 composite with a 2% MoS2 doping ratio achieved a remarkable response value of 1123.19 toward 20ppm NO2 at 140℃—seven times that of pure WO3 at its optimal working temperature（80℃）. Characterization and mechanistic studies revealed that the combination of MoS2 and WO3 forms a p-n heterojunction，inducing a charge depletion layer at the interface. Additionally，the band bending effect reduces the energy barrier for gasmolecule adsorption，thereby enhancing both the gas adsorption capacity and surface reaction activity of the composite. This study provides a novel material design strategy and technical approach for developing high-performance，low-temperature NO2 gas sensors.

molybdenum disulfide  /  tungsten oxide  /  NO2 sensor  /  hudrothermal method  /  high sensitivity
Yuhan LI, Tengfei ZHANG, Tianjun XU, Hulin ZHANG, Kai ZHUO. Low-temperature high-sensitivity NO2 gas sensor based on MoS2/WO3[J]. Electronic Components and Materials, 2025 , 44 (10) : 1160 -1168 . DOI: 10.14106/j.cnki.1001-2028.2025.0026
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doi: 10.14106/j.cnki.1001-2028.2025.0026
  • Receive Date：2025-01-14
  • Online Date：2026-04-16
  • Published：2025-10-05
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  • Received：2025-01-14
Affiliations
    1College of Electronic Information Engineering, Taiyuan University of Technology, Taiyuan 030024, China
    2College of Integrated Circuits, Taiyuan University of Technology, Taiyuan 030024, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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