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Electrical and Gas‐Sensing Properties of a Thick Film Resistor of Nanosized SnO 2 with Variable Percentage of Permanent Binder
Author(s) -
Garje A. D.,
Aiyer R. C.
Publication year - 2006
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2006.02111.x
Subject(s) - materials science , resistor , electrical resistivity and conductivity , thermal decomposition , temperature coefficient , tin , composite material , liquefied petroleum gas , sheet resistance , planar , analytical chemistry (journal) , chemical engineering , metallurgy , organic chemistry , voltage , electrical engineering , chemistry , computer graphics (images) , layer (electronics) , computer science , engineering
Nanosized SnO 2 powder was synthesized by thermal decomposition of tin di acetate at 380°C. The effect of permanent binder (5, 10, 15, and 20 wt%) on the electrical and gas‐sensing properties of thick film planar resistors shows sheet resistivity four to five orders of magnitude smaller, with comparatively low temperature coefficient of resistance. The sensors with 15 wt% of glass show the highest sensitivity toward H 2 , CO, and liquefied petroleum gas (300 ppm) at optimal temperatures of 150°, 220°, and 190°C, respectively, giving selectivity. The sensors are tested for 10–300 ppm of gas with a response and recovery time of 10 and 20 s, respectively.