Fabrication of SnO2–SnO nanocomposites with p–n heterojunctions for the low-temperature sensing of NO2 gas

Nanoscale ◽  
2015 ◽  
Vol 7 (28) ◽  
pp. 12133-12142 ◽  
Author(s):  
Lei Li ◽  
Chunmei Zhang ◽  
Wei Chen
Keyword(s):  
Low Temperature ◽  
High Sensitivity ◽  
Temperature Sensing ◽  
Gas Detection ◽  
Hybrid Nanostructure ◽  
Sensitivity And Selectivity ◽  
Sensing Performance

A SnO2–SnO hybrid nanostructure with p–n heterojunctions exhibits enhanced sensing performance for NO2 gas detection with high sensitivity and selectivity.

Linear red/green ratiometric thermometry of Ho3+/Cr3+ co-doped red up-conversion tungstate materials

2021 ◽  
Author(s):  
Yan Zhao ◽  
Xusheng Wang ◽  
Rui Hu ◽  
Yanxia Li
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
High Sensitivity ◽  
Temperature Sensing ◽  
High Temperature Range ◽  
Temperature Range ◽  
Co Doped ◽  
Sensing Performance

Existing optical thermometers are faced with the challenges of high sensitivity limited to a very narrow high temperature range, while also lacking low temperature sensing performance. A new linear up-conversion...

scholarly journals A highly selective and sensitive H2S sensor at low temperatures based on Cr-doped α-Fe2O3 nanoparticles

RSC Advances ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 4150-4156 ◽  
Author(s):  
Dongyang Xue ◽  
Rui Zhou ◽  
Xiaoping Lin ◽  
Xiaochuan Duan ◽  
Qiuhong Li ◽  
...  
Keyword(s):  
Low Temperature ◽  
Low Temperatures ◽  
Hydrothermal Reaction ◽  
High Sensitivity ◽  
Fe2o3 Nanoparticles ◽  
Sensitivity And Selectivity ◽  
One Step

Cr-doped α-Fe2O3 nanoparticles were synthesized by one-step hydrothermal reaction and showed high sensitivity and selectivity to H2S at low temperature.

Low-temperature sensing and high sensitivity of ZnO nanoneedles due to small size effect

2009 ◽  
Vol 517 (20) ◽  
pp. 5931-5934 ◽  
Author(s):  
Chengchao Li ◽  
Zhifeng Du ◽  
Hongchun Yu ◽  
Taihong Wang
Keyword(s):  
Low Temperature ◽  
Size Effect ◽  
High Sensitivity ◽  
Temperature Sensing

scholarly journals Fluorescence Sensing Platforms for Epinephrine Detection Based on Low Temperature Cofired Ceramics

Sensors ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 1429
Author(s):  
Sylwia Baluta ◽  
Karol Malecha ◽  
Agnieszka Świst ◽  
Joanna Cabaj
Keyword(s):  
Detection Limit ◽  
Low Temperature ◽  
High Sensitivity ◽  
Fluorescence Sensing ◽  
Free System ◽  
Injection Test ◽  
Sensing Platforms ◽  
Sensitivity And Selectivity ◽  
Cofired Ceramics ◽  
Optimized Conditions

A novel fluorescence-sensing pathway for epinephrine (EP) detection was investigated. The ceramic-based miniature biosensor was developed through the immobilization of an enzyme (laccase, tyrosinase) on a polymer—poly-(2,6-di([2,2′-bithiophen]-5-yl)-4-(5-hexylthiophen-2-yl)pyridine), based on low temperature cofired ceramics technology (LTCC). The detection procedure was based on the oxidation of the substrate, i.e., in the presence of the enzyme. An alternative enzyme-free system utilized the formation of a colorful complex between Fe2+ ions and epinephrine molecules. With the optimized conditions, the analytical performance illustrated high sensitivity and selectivity in a broad linear range with a detection limit of 0.14–2.10 nM. Moreover, the strategy was successfully used for an EP injection test with labeled pharmacological samples.

scholarly journals Electrochemically assisted flexible lanthanide upconversion luminescence sensing of heavy metal contamination with high sensitivity and selectivity

2019 ◽  
Vol 1 (1) ◽  
pp. 265-272 ◽  
Author(s):  
Yuen-Ting Wong ◽  
Sin-Yi Pang ◽  
Ming-Kiu Tsang ◽  
Yan Liu ◽  
Haitao Huang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Metal Contamination ◽  
Heavy Metal Ions ◽  
Heavy Metal Contamination ◽  
Upconversion Luminescence ◽  
High Sensitivity ◽  
Sensitivity And Selectivity ◽  
Electrochemical Effect ◽  
Sensing Performance

A flexible lanthanide upconversion luminescent composite probe demonstrated high sensing performance for heavy metal ions under an electrochemical effect.

scholarly journals Improving gas sensing performance by oxygen vacancies in sub-stoichiometric WO3−x

RSC Advances ◽  
2019 ◽  
Vol 9 (14) ◽  
pp. 7723-7728 ◽  
Author(s):  
Weiwei Yu ◽  
Zhenguang Shen ◽  
Fang Peng ◽  
Yue Lu ◽  
Meiying Ge ◽  
...  
Keyword(s):  
Experimental Study ◽  
Low Temperature ◽  
Oxygen Vacancies ◽  
Gas Sensing ◽  
Temperature Sensing ◽  
Sensing Performance

We present an experimental study on the influence of sub-stoichiometric WO3−x phase upon gas sensing performance. Our work shows that the sub-stoichiometric WO3−x can be used to enhance the low temperature sensing performance.

Novel insights into the unique intrinsic sensing behaviors of 2D nanomaterials for volatile organic compounds: from graphene to MoS2 and black phosphorous

2021 ◽  
Author(s):  
Boyang Zong ◽  
Qikun Xu ◽  
Qiuju Li ◽  
Xian Fang ◽  
Xiaoyan Chen ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Gas Detection ◽  
Volatile Organic ◽  
Sensitivity And Selectivity ◽  
2D Nanomaterials ◽  
Black Phosphorous ◽  
Sensing Performance

Field-effect transistors (FETs) receive growing attention for gas detection owing to their superior sensing performance over traditional techniques. The sensitivity and selectivity of FET sensor can be enhanced through tuning...

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