Carbon-doping-induced energy-band modification and vacancies in SnS2 nanosheets for room-temperature ppb-level NO2 detection

2021 ◽  
Author(s):  
Ruozhen Wu ◽  
Juanyuan Hao ◽  
Tingting Wang ◽  
Shengliang Zheng ◽  
You Wang
Keyword(s):  
Synergistic Effect ◽  
Gas Sensors ◽  
Energy Band ◽  
High Performance ◽  
Room Temperature ◽  
Carbon Doping ◽  
No2 Detection

Carbon-doping mediated synergistic effect of energy-band modification and vacancy provides a new solution for developing high-performance LMDs-based gas sensors.

scholarly journals Gas Sensors Based on Mechanically Exfoliated MoS2 Nanosheets for Room-Temperature NO2 Detection

Sensors ◽  
2019 ◽  
Vol 19 (9) ◽  
pp. 2123 ◽  
Author(s):  
Wenli Li ◽  
Yong Zhang ◽  
Xia Long ◽  
Juexian Cao ◽  
Xin Xin ◽  
...  
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
Density Functional ◽  
Room Temperature ◽  
Mos2 Nanosheets ◽  
Mechanical Exfoliation ◽  
High Responsivity ◽  
Recovery Behavior ◽  
No2 Gas Sensors ◽  
No2 Detection

The unique properties of MoS2 nanosheets make them a promising candidate for high-performance room temperature gas detection. Herein, few-layer MoS2 nanosheets (FLMN) prepared via mechanical exfoliation are coated on a substrate with interdigital electrodes for room-temperature NO2 detection. Interestingly, compared with other NO2 gas sensors based on MoS2, FLMN gas sensors exhibit high responsivity for room-temperature NO2 detection, and NO2 is easily desorbed from the sensor surface with an ultrafast recovery behavior, with recovery times around 2 s. The high responsivity is related to the fact that the adsorbed NO2 can affect the electron states within the entire material, which is attributed to the very small thickness of the MoS2 nanosheets. First-principles calculations were carried out based on the density functional theory (DFT) to verify that the ultrafast recovery behavior arises from the weak van der Waals binding between NO2 and the MoS2 surface. Our work suggests that FLMN prepared via mechanical exfoliation have a great potential for fabricating high-performance NO2 gas sensors.

Electronic structure engineering of tin telluride through co-doping of bismuth and indium for high performance thermoelectrics: a synergistic effect leading to a record high room temperature ZT in tin telluride

2019 ◽  
Vol 7 (16) ◽  
pp. 4817-4821 ◽  
Author(s):  
U. Sandhya Shenoy ◽  
D. Krishna Bhat
Keyword(s):  
Electronic Structure ◽  
Synergistic Effect ◽  
Band Gap ◽  
High Performance ◽  
Room Temperature ◽  
Band Offset ◽  
Valence Band Offset ◽  
Co Doping ◽  
Tin Telluride ◽  
Structure Engineering

Resonance states due to Bi and In co-doping, band gap enlargement, and a reduced valence-band offset in SnTe lead to a record high room-temperature ZT.

Ultraviolet light-emitting diode-assisted highly sensitive room temperature NO2 gas sensor for low-temperature solution-processed ZnO/TiO2 nanorods decorated with plasmonic Au nanoparticles

Nanoscale ◽  
2021 ◽  
Author(s):  
Soon-Hwan Kwon ◽  
Tae-Hyeon Kim ◽  
Sang-Min Kim ◽  
Semi Oh ◽  
Kyoung-Kook Kim
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
Room Temperature ◽  
Au Nanoparticles ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
No2 Gas Sensor ◽  
Highly Sensitive ◽  
Temperature Solution ◽  
Semiconducting Metal Oxides

Nanostructured semiconducting metal oxides such as SnO2, ZnO, TiO2, and CuO have been widely used to fabricate high performance gas sensors. To improve the sensitivity and stability of gas sensors,...

Morphological Evolution Induced through a Heterojunction of W-Decorated NiO Nanoigloos: Synergistic Effect on High-Performance Gas Sensors

2019 ◽  
Vol 11 (7) ◽  
pp. 7529-7538 ◽  
Author(s):  
Seung Yeop Yi ◽  
Young Geun Song ◽  
Jae Yeol Park ◽  
Jun Min Suh ◽  
Gwang Su Kim ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Gas Sensors ◽  
High Performance ◽  
Morphological Evolution

scholarly journals Twofold Porosity and Surface Functionalization Effect on Pt–Porous GaN for High-Performance H2-Gas Sensors at Room Temperature

ACS Omega ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 1678-1684 ◽  
Author(s):  
Muhammad Shafa ◽  
Davide Priante ◽  
Rami T. ElAfandy ◽  
Mohamed Nejib Hedhili ◽  
Saleh T. Mahmoud ◽  
...  
Keyword(s):  
Surface Functionalization ◽  
Gas Sensors ◽  
High Performance ◽  
Room Temperature

scholarly journals Two-Dimensional NbS2 Gas Sensors for Selective and Reversible NO2 Detection at Room Temperature

ACS Sensors ◽  
2019 ◽  
Vol 4 (9) ◽  
pp. 2395-2402 ◽  
Author(s):  
Yeonhoo Kim ◽  
Ki Chang Kwon ◽  
Sungwoo Kang ◽  
Changyeon Kim ◽  
Tae Hoon Kim ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Room Temperature ◽  
Two Dimensional ◽  
No2 Detection

Two-dimensional MoSe2 nanosheets via liquid-phase exfoliation for high-performance room temperature NO2 gas sensors

2019 ◽  
Vol 30 (44) ◽  
pp. 445503 ◽  
Author(s):  
Xi Chen ◽  
Xinwei Chen ◽  
Yutong Han ◽  
Chen Su ◽  
Min Zeng ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Gas Sensors ◽  
High Performance ◽  
Room Temperature ◽  
Two Dimensional ◽  
Liquid Phase Exfoliation ◽  
No2 Gas Sensors

scholarly journals Flexible fabric gas sensors based on PANI/WO3 p−n heterojunction for high performance NH3 detection at room temperature

2020 ◽  
Vol 63 (10) ◽  
pp. 2028-2039
Author(s):  
Meng He ◽  
Lili Xie ◽  
Guifang Luo ◽  
Zhanhong Li ◽  
James Wright ◽  
...  
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
Room Temperature

Electrospraying preparation of metal germanate nanospheres for high-performance lithium-ion batteries and room-temperature gas sensors

Nanoscale ◽  
2019 ◽  
Vol 11 (25) ◽  
pp. 12116-12123 ◽  
Author(s):  
Rui Li ◽  
Renmu Zhang ◽  
Zheng Lou ◽  
Tingting Huang ◽  
Kai Jiang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Gas Sensors ◽  
High Performance ◽  
Large Scale ◽  
Room Temperature ◽  
Lithium Ion ◽  
Ammonia Gas ◽  
Potential Applications ◽  
Ammonia Gas Sensors

Metal germanate nanospheres including Ca2Ge7O16, Zn2GeO4 and SrGe4O9 were prepared by a facile and large-scale electrospraying process. They have potential applications in lithium-ion batteries and room temperature ammonia gas sensors.

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