Optimization of gas sensing properties of n-SnO2/p-xCuO sensors for homogenous gases and the sensing mechanism

The gas sensing sensitivity and selectivity are optimized by modulating the concentration of p -type and n -type materials in n-SnO 2 /p- x CuO nanocomposites. With the increase of x value, the sensing performance of the n -SnO 2 / p - x CuO composites changed from n -type to p -type. Compared with...

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Veröffentlicht in:	Journal of materials science. Materials in electronics 2020-11, Vol.31 (21), p.18412-18426
Hauptverfasser:	Zhou, Wen-dong, Dastan, Davoud, Yin, Xi-tao, Nie, Shuai, Wu, Saisai, Wang, Qi, Li, Jing
Format:	Artikel
Sprache:	eng
Schlagworte:	Carbon monoxide Characterization and Evaluation of Materials Chemistry and Materials Science Copper oxides Diameters Gas sensors Gases Heterojunctions Materials Science Nanocomposites Nanoparticles Optical and Electronic Materials Optimization P-n junctions Selectivity Sensitivity Tin dioxide
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Zusammenfassung:	The gas sensing sensitivity and selectivity are optimized by modulating the concentration of p -type and n -type materials in n-SnO 2 /p- x CuO nanocomposites. With the increase of x value, the sensing performance of the n -SnO 2 / p - x CuO composites changed from n -type to p -type. Compared with pristine SnO 2 , the gas sensing response of SnO 2 – x CuO ( x
ISSN:	0957-4522 1573-482X
DOI:	10.1007/s10854-020-04387-3