Oxygen vacancy engineering of self-doped SnO2−x nanocrystals for ultrasensitive NO2 detection

2020 ◽  
Vol 8 (2) ◽  
pp. 487-494 ◽  
Author(s):  
Meng Shao ◽  
Jiajia Liu ◽  
Wenjie Ding ◽  
Jingyu Wang ◽  
Fan Dong ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Oxygen Vacancies ◽  
Gas Sensing ◽  
Significant Enhancement ◽  
Sensing Performance ◽  
No2 Detection

Self-doping of SnO2−x nanocrystals accompanying abundant oxygen vacancies results in significant enhancement in the gas sensing performance.

First-principles exploration of oxygen vacancy impact on electronic and optical properties of ABO3−δ (A = La, Sr; B = Cr, Mn) perovskites

2020 ◽  
Vol 22 (46) ◽  
pp. 27163-27172
Author(s):  
Jongwoo Park ◽  
Yu-Ning Wu ◽  
Wissam A. Saidi ◽  
Benjamin Chorpening ◽  
Yuhua Duan
Keyword(s):  
Optical Properties ◽  
Electronic Structure ◽  
Oxygen Vacancy ◽  
First Principles ◽  
Oxygen Vacancies ◽  
Gas Sensing ◽  
Optical Responses ◽  
Sensing Applications ◽  
Optical Gas Sensing ◽  
The Impact

We explore via first-principles the impact of oxygen vacancies on the electronic structure and optical responses of ABO3−δ (A = La, Sr; B = Cr, Mn) perovskites, which provides a reference for optical gas sensing applications.

Oxygen Vacancy Enhanced Gas-Sensing Performance of CeO2/Graphene Heterostructure at Room Temperature

2018 ◽  
Vol 90 (16) ◽  
pp. 9821-9829 ◽  
Author(s):  
Lizhai Zhang ◽  
Qinglong Fang ◽  
Yuhong Huang ◽  
Kewei Xu ◽  
Paul K. Chu ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Room Temperature ◽  
Gas Sensing ◽  
Sensing Performance

Template-free preparation of mesoporous single crystal In2O3 achieving superior ethanol gas sensing performance

RSC Advances ◽  
2016 ◽  
Vol 6 (18) ◽  
pp. 14615-14619 ◽  
Author(s):  
Jijiang Liu ◽  
Gang Chen ◽  
Yaoguang Yu ◽  
Yalin Wu ◽  
Mingjun Zhou ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Specific Surface ◽  
Single Crystal ◽  
Surface Area ◽  
Gas Sensing ◽  
Vacancy Concentration ◽  
High Specific Surface Area ◽  
Oxygen Vacancy Concentration ◽  
Template Free ◽  
Sensing Performance

Mesoporous single crystal In2O3 with high specific surface area and oxygen vacancy concentration are prepared for enhanced ethanol gas sensing performance.

Oxygen defect influenced gas sensing properties of ZnO polyhedral structures

2017 ◽  
Vol 31 (25) ◽  
pp. 1745002
Author(s):  
Ablet Mamat ◽  
Yaping Qi ◽  
Anvar Rozi ◽  
Xiangbo Liu ◽  
Weiyi Huang ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Growth Temperature ◽  
Oxygen Vacancies ◽  
Thermal Evaporation ◽  
Gas Sensing ◽  
Evaporation Process ◽  
Zno Nanostructures ◽  
Oxygen Defect ◽  
Photoluminescence Spectra ◽  
Gas Sensing Properties

ZnO polyhedral structures were fabricated via a rapid thermal evaporation process. The ZnO nanostructures grown had faceted trumpet-like morphologies. The intensity of visible emission in photoluminescence spectra strongly related to growth temperature, indicating different concentrations of oxygen vacancy. These structures exhibited typical sensing property to gaseous ethanol. The sensing property was related to the oxygen vacancies.

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