Effect of Ni doping on thick film SnO2 gas sensor

Jain, Kiran; Pant, R. P.; Lakshmikumar, S.T.

doi:10.1016/j.snb.2005.03.104

Cited by 180 publications

(78 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…NiO is a p-type semiconductor. According to Jain et al [35], this material can be segregated over the n-type SnO 2 , forming n-p junctions. It has been reported that with sensing materials composed of two successive bodies A and B whose conductivity types are different such as p-and n-type, under certain conditions, high response and good selectivity can be observed [36].…”

Section: Resultsmentioning

confidence: 99%

Comparative investigation of three types of ethanol sensor based on NiO-SnO2 composite nanofibers

Shen

Xia

et al. 2012

Chin. Sci. Bull.

View full text Add to dashboard Cite

NiO-SnO 2 composite nanofibers were synthesized via electrospinning techniques and characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. Three types of sensor were applied to investigate the sensing properties of these nanofibers. Sensors A were fabricated by mixing the nanofibers with deionized water, and then grinding and coating them on ceramic tubes to form indirect heated gas sensors. Microsensors B (with an area of 600 μm×200 μm) were formed by spinning nanofibers on Si substrates with Pt signal electrodes and Pt heaters. Sensors C were fabricated by spinning nanofibers on plane ceramic substrates (with a large area of 13.4 mm×7 mm) with Ag-Pd signal electrodes only. The operating temperatures of sensors A and B were controlled by adjusting heater currents, and the operating temperatures of sensors C were controlled by adjusting an external temperature control device. Experimental results show that sensors C possess the highest sensing properties, such as high response values (about 42 to 100 μL/L ethanol), quick response/recovery speeds (the response and recovery times were 4 and 7 s, respectively), and excellent consistencies. These phenomena were explained by the retained fiber morphology and suitable sensor area. The presented results can provide some useful information for the design and optimization of one-dimensional nanomaterial-based gas sensors.SnO 2 , semiconductors, electrospinning, nanofibers, gas sensors Citation:Shen R S, Li X P, Xia X C, et al. Comparative investigation of three types of ethanol sensor based on NiO-SnO 2 composite nanofibers.

show abstract

Section: Resultsmentioning

confidence: 99%

Comparative investigation of three types of ethanol sensor based on NiO-SnO2 composite nanofibers

Shen

Xia

et al. 2012

Chin. Sci. Bull.

View full text Add to dashboard Cite

show abstract

“…Tan et al reported the gas sensing properties of nanostructured SnO 2 [14]; Jain et al reported the effect of Ni doping on SnO 2 gas sensors [15]. However, there are only very few number of papers that focus on the electrical properties of SnO 2 .…”

Section: Introductionmentioning

confidence: 99%

Study of electrical properties of nickel doped SnO2 ceramic nanoparticles

Azam

Ahmed

Ansari

et al. 2010

Journal of Alloys and Compounds

146

View full text Add to dashboard Cite

“…For instance, Ce, Ni, Al, Ru, Pd, and Zn elements have already been shown by experiments to be very attractive dopings for SnO 2 gas sensor [20][21][22][23][24][25][26], they can be used to improve the sensitivity, stability, selectivity and response speed of SnO 2 sensor to specific gases. Theoretically, it has been shown that the Ru-doping can promote surface chemical activity so that the characteristics of molecular oxygen adsorption can change from being endothermic on the stoichiometric SnO 2 (110) surface to being exothermic after the doping [27].…”

Section: Introductionmentioning

confidence: 99%