effect of ni doping on gas sensing performance of zno thick film resistor
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2010
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Abstract
This work investigates the use of ZnO-NiO as a H2S metal oxide thick film gas sensor. To find the optimum ratio of NiO to ZnO, two compositions were prepared using different molecular percentages and prepared as a thick film paste. These pastes were then screen-printed onto glass substrates with suitable binder. The final composition of each film was determined using SEM analysis. The films were used to detect CO, CL2, ethanol, Amonia and H2S. For each composition tested, the highest responses where displayed for H2S gas. The Thick film having composition of equal molar ZnO and NiO shows the highest response at operating temp. 350 0C for 100 ppm level. The gas response, selectivity, response and recovery time of the sensor were measured and presented. The role played by NiO species is to improve the gas sensing performance is discussed.| Reference Key |
deore2010sensorseffect
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| Authors | ;M. K. DEORE;V. B. GAIKWAD;R. L. PATIL;N. K. PAWAR;S. D. SHINDE;G. H. JAIN |
| Journal | gülhane tıp dergi |
| Year | 2010 |
| DOI | DOI not found |
| URL | |
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