The effect of Ni content on gas-sensing behaviors of ZnO–NiO p–n composite thin films grown through radio-frequency cosputtering of ceramic ZnO and NiO targets

CrystEngComm ◽  
2020 ◽  
Vol 22 (13) ◽  
pp. 2315-2326 ◽  
Author(s):  
Yuan-Chang Liang ◽  
Yen-Cheng Chang
Keyword(s):  
Thin Films ◽  
Radio Frequency ◽  
Gas Sensing ◽  
Dual Phase ◽  
Composite Thin Films ◽  
Ni Content

In this study, dual phase ZnO–NiO p–n composite thin films were grown through radio-frequency cosputtering of ceramic ZnO and NiO targets.

Effect of Temperature on the Electrical and Gas Sensing Properties of Polyaniline and Multiwall Carbon Nanotube Doped Polyaniline Composite Thin Films

2011 ◽  
Vol 254 ◽  
pp. 167-170 ◽  
Author(s):  
Subodh Srivastava ◽  
Sumit Kumar ◽  
Vipin Kumar Jain ◽  
Y.K. Vijay
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Gas Sensing ◽  
Hydrogen Gas ◽  
Composite Thin Film ◽  
Effect Of Temperature ◽  
Multiwall Carbon Nanotube ◽  
Film Sensor ◽  
Composite Thin Films ◽  
Pani Composite

In the present work we have reported the effect of temperature on the gas sensing properties of pure Polyaniline (PANI) and Multiwall carbon nanotube (MWNT) doped PANI composite thin film based chemiresistor type gas sensors for hydrogen gas sensing application. PANI and MWNT doped PANI composite were synthesized by in situ chemical oxidative polymerization of aniline using ammonium persulfate in an acidic medium. The thin sensing film of chemically synthesized PANI and MWNT doped PANI composite were deposited onto finger type Cu-interdigited electrodes using spin cast technique to prepared chemiresistor type gas sensor. The electrical properties of these composite thin films were characterized by I-V measurements as function of temperature. The I-V measurement revealed that conductivity of composite thin films increased as the temperature increased. The changes in resistance of the composite thin film sensor were utilized for detection of hydrogen gas. It was observed that at room temperature, MWNT doped PANI composite sensor shows higher response value and sensitivity with good repeatability in comparison to pure PANI thin film sensor. It was also observed that both PANI and MWNT doped PANI composite thin film based sensors showed unstable behavior as the temperature increased. The surface morphology of these composite thin films has also been characterized by scanning electron microscopy (SEM) measurement.

Study of Structural and Gas Sensing Properties of Tantalum Coated Polyaniline Composite Thin Films

2011 ◽  
Author(s):  
Subodh Srivastava ◽  
Sumit Kumar ◽  
Shweta Agrawal ◽  
S. S. Sharma ◽  
Rajesh Kumar ◽  
...  
Keyword(s):  
Thin Films ◽  
Gas Sensing ◽  
Composite Thin Films ◽  
Sensing Properties ◽  
Gas Sensing Properties

scholarly journals Crystal phase content-dependent functionality of dual phase SnO2–WO3nanocomposite filmsviacosputtering crystal growth

RSC Advances ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 6482-6493 ◽  
Author(s):  
Yuan-Chang Liang ◽  
Yu Chao
Keyword(s):  
Thin Films ◽  
Crystal Growth ◽  
Radio Frequency ◽  
Crystal Phase ◽  
Dual Phase ◽  
Phase Content ◽  
Nanocomposite Thin Films

In this study, crystalline SnO2–WO3nanocomposite thin films were grown through radio-frequency cosputtering of metallic Sn and ceramic WO3targets.

scholarly journals Optical Gas Sensing of Ammonia and Amines Based on Protonated Porphyrin/TiO2 Composite Thin Films

Sensors ◽  
2016 ◽  
Vol 17 (12) ◽  
pp. 24 ◽  
Author(s):  
Pedro Castillero ◽  
Javier Roales ◽  
Tânia Lopes-Costa ◽  
Juan Sánchez-Valencia ◽  
Angel Barranco ◽  
...  
Keyword(s):  
Thin Films ◽  
Gas Sensing ◽  
Composite Thin Films ◽  
Optical Gas Sensing
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