Sg. Ansari et al., GRAIN-SIZE EFFECTS ON H-2 GAS SENSITIVITY OF THICK-FILM RESISTOR USING SNO2 NANOPARTICLES, Thin solid films, 295(1-2), 1997, pp. 271-276
The effect of ppm level Ha on the d.c. resistance of SnO2 thick film p
lanar resistor with SnO2 particle size variation (similar to 20 to 50
nm) is reported. SnO2 nanoparticles were synthesized using the sol-gel
method. The films were prepared using standard screen printing techno
logy. The SnO2 crystallite size, D, is varied in the range of 20-50 nm
and sensitivity for H-2 is found to increase steeply as D decreases.
(C) 1997 Elsevier Science S.A.