scholarly journals Flexible ultra-sensitive and resistive NO2 gas sensor based on nanostructured Zn(x)Fe(1−x)2O4

RSC Advances ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 3243-3249 ◽  
Author(s):  
Solleti Goutham ◽  
Kishor Kumar Sadasivuni ◽  
Devarai Santhosh Kumar ◽  
Kalagadda Venkateswara Rao
Keyword(s):  
Response Time ◽  
Gas Sensor ◽  
Rapid Response ◽  
Gas Detection ◽  
Low Concentration ◽  
Working Temperature ◽  
No2 Gas Sensor ◽  
Varied Range ◽  
Toxic Gas

Low concentration gas detection, rapid response time and low working temperature are anticipated for a varied range of toxic gas detection applications.

Low-Concentration NO2 Gas Sensor Based on HfO2 Thin Films Irradiated by Ultraviolet Light

2016 ◽  
Vol 45 (8) ◽  
pp. 3914-3920 ◽  
Author(s):  
Irmak Karaduman ◽  
Özlem Barin ◽  
Metin Özer ◽  
Selim Acar
Keyword(s):  
Thin Films ◽  
Gas Sensor ◽  
Ultraviolet Light ◽  
Low Concentration ◽  
No2 Gas Sensor

High-Stability Weighing Paper/Polytetrafluoroethylene-Based Triboelectric Nanogenerator for Self-Powered In2O3 Nanocubes/SnS2 Nanoflowers NO2 Gas Sensor

2021 ◽  
Author(s):  
Yan Yang ◽  
Dongzhi Zhang ◽  
Dongyue Wang ◽  
Zhenyuan Xu ◽  
Jianhua Zhang
Keyword(s):  
Gas Sensor ◽  
High Stability ◽  
Future Trend ◽  
Harsh Environments ◽  
Triboelectric Nanogenerator ◽  
No2 Gas Sensor ◽  
Toxic Gas ◽  
Self Powered

The application of low-powered, sustainable sensors to detect the leak of toxic gas in harsh environments such as factories has gradually become a future trend. In our work, we proposed...

Construction of PdO-decorated double-shell ZnSnO3 hollow microspheres for n-propanol detection at low temperature

2021 ◽  
Author(s):  
Liyong Du ◽  
Dongxue Wang ◽  
Kuikun Gu ◽  
Mingzhe Zhang
Keyword(s):  
Low Temperature ◽  
Rapid Response ◽  
Hollow Microspheres ◽  
Working Temperature ◽  
Response Recovery

The sensor based on 4 wt% PdO-loaded double-shell ZnSnO3 hollow microspheres shows rapid response/recovery speed to n-propanol at low working temperature.

Thin-layered MoS2 nanoflakes vertically grown on SnO2 nanotubes as highly effective room-temperature NO2 gas sensor

2021 ◽  
Vol 416 ◽  
pp. 125830
Author(s):  
Xue Bai ◽  
He Lv ◽  
Zhuo Liu ◽  
Junkun Chen ◽  
Jue Wang ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Room Temperature ◽  
No2 Gas Sensor ◽  
Highly Effective ◽  
Layered Mos2

scholarly journals Ammonia Gas Sensing Characteristic of P3HT-rGO-MWCNT Composite Films

2021 ◽  
Vol 11 (15) ◽  
pp. 6675
Author(s):  
Tran Si Trong Khanh ◽  
Tran Quang Trung ◽  
Le Thuy Thanh Giang ◽  
Tran Quang Nguyen ◽  
Nguyen Dinh Lam ◽  
...  
Keyword(s):  
Response Time ◽  
Gas Sensor ◽  
Gas Sensing ◽  
Composite Films ◽  
Weight Ratio ◽  
Film Surface ◽  
Relative Sensitivity ◽  
Ammonia Gas ◽  
Casting Technique ◽  
Multi Walled Carbon Nanotubes

In this work, the P3HT:rGO:MWCNTs (PGC) nanocomposite film applied to the ammonia gas sensor was successfully fabricated by a drop-casting technique. The results demonstrated that the optimum weight ratio of the PGC nanocomposite gas sensor is 20%:60%:20% as the weight ratio of P3HT:rGO:MWCNTs (called PGC-60). This weight ratio leads to the formation of nanostructured composites, causing the efficient adsorption/desorption of ammonia gas in/out of the film surface. The sensor based on PGC-60 possessed a response time of 30 s, sensitivity up to 3.6% at ammonia gas concentration of 10 ppm, and relative sensitivity of 0.031%/ppm. These results could be attributed to excellent electron transportation of rGO, the main adsorption activator to NH3 gas of P3HT, and holes move from P3HT to the cathodes, which works as charge “nano-bridges” carriers of Multi-Walled Carbon Nanotubes (MWCNTs). In general, these three components of PGC sensors have significantly contributed to the improvement of both the sensitivity and response time in the NH3 gas sensor.

Investigating a Fluorobenzene Based Single Electron Transistor As a Toxic Gas Sensor

2021 ◽  
Author(s):  
Kumar Gaurav ◽  
Boddepalli SanthiBhushan ◽  
Ravi Mehla ◽  
Anurag Srivastava
Keyword(s):  
Gas Sensor ◽  
Single Electron ◽  
Single Electron Transistor ◽  
Toxic Gas

scholarly journals A fast response, self-powered and room temperature near infrared-terahertz photodetector based on a MAPbI3/PEDOT:PSS composite

2020 ◽  
Vol 8 (35) ◽  
pp. 12148-12154 ◽  
Author(s):  
Yifan Li ◽  
Yating Zhang ◽  
Tengteng Li ◽  
Xin Tang ◽  
Mengyao Li ◽  
...  
Keyword(s):  
Response Time ◽  
Room Temperature ◽  
Near Infrared ◽  
Fast Response ◽  
Rapid Response ◽  
Self Powered

A novel self-powered NIR and THz PTE PD based on a (MAPbI3/PEDOT:PSS) composite with a rapid response time of 28 μs.

Localized Collection of Airborne Analytes: A Transport Driven Approach to Improve the Response Time of Existing Gas Sensor Designs including SERS based Detection of Small Molecules

2015 ◽  
Vol 1746 ◽  
Author(s):  
Jun Fang ◽  
Se-Chul Park ◽  
Leslie Schlag ◽  
Thomas Stauden ◽  
Joerg Pezoldt ◽  
...  
Keyword(s):  
Response Time ◽  
Small Molecules ◽  
Gas Sensor ◽  
Recent Trend ◽  
Active Area ◽  
Analyte Concentration ◽  
Analyte Molecule ◽  
Collection Rate ◽  
Molecular Binding ◽  
Increased Sensitivity

ABSTRACTThe detection of single molecular binding events has been a recent trend in sensor research introducing various sensor designs where the active sensing elements are nanoscopic in size. Currently, diffusion-only-transport is often used and it becomes increasingly unlikely for an analyte molecule to “find” and interact with sensing structures where the active area is shrunk in size, trading an increased sensitivity with a long response time. This report introduces electrodynamic nanolens based analyte concentration concepts to transport airborne analytes to nanoscopic sensing points to improve the response time of existing gas sensor designs. In all cases we find that the collection rate is several orders of magnitudes higher than in the case where the collection is driven by diffusion.

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