Effect of Firing Temperature on Electrical and Gas-Sensing Properties of Nano-SnO2-Based Thick-Film Resistors
Nano‐SnO2‐based thick‐film resistors were fabricated using screen printing technology. To study the effect of firing temperature, sensors were fired in the range 425–850°C. A mixture of tetragonal and orthorhombic SnO2 was observed in the range 425–700°C. Above 700°C, the presence of majority tetrag...
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| Published in | International journal of applied ceramic technology Vol. 4; no. 5; pp. 446 - 452 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Malden, USA
Blackwell Publishing Inc
01.10.2007
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| Online Access | Get full text |
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| Summary: | Nano‐SnO2‐based thick‐film resistors were fabricated using screen printing technology. To study the effect of firing temperature, sensors were fired in the range 425–850°C. A mixture of tetragonal and orthorhombic SnO2 was observed in the range 425–700°C. Above 700°C, the presence of majority tetragonal phase was observed. The sheet resistivity and TCR values were one to two orders of magnitude less than the reported values. Sensors fired at 750°C showed the highest sensitivity and selectivity for H2, CO, and LPG at 140°C, 210°C, and 180°C, respectively, with a response and recovery time of 12 and 22 s. |
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| Bibliography: | ArticleID:IJAC02158 istex:01C42BC36ADFFC43C7D1EE4C9048273270717C95 ark:/67375/WNG-XLV2K25Q-S rca@physics.unipune.ernet.in * ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 1546-542X 1744-7402 |
| DOI: | 10.1111/j.1744-7402.2007.02158.x |