BULLETIN of the

POLISH ACADEMY of SCIENCES

TECHNICAL SCIENCES

BULLETIN of the POLISH ACADEMY of SCIENCES: TECHNICAL SCIENCES
Volume 52, Issue 1, March 2004
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pp  37 - 42
Paper in PDF - 750 KB
Thick-film gas microsensors based on tin dioxide
B. LICZNERSKI
 
Semiconductive - resistive sensors of toxic and explosive gases were fabricated from nanograins of SnO2 using thick-.lm technology. Sensitivity, selectivityand stabilityof sensors working in di.erent temperature depend on the way the tin dioxide and additives were prepared. A construction also plays an important role. The paper presents an attitude towards the evaluation of transport of electrical charges in semiconductive grain layer of SnO2, when dangerous gases appear in the surrounding atmosphere.
 
Keywords:
thick-film, gas sensor, tin dioxide, catalyst, selectivity, sensitivity, conduction mechanism.

 
 
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Copyright Bulletin of the Polish Academy of Sciences: Technical Sciences

24 May 2004, site prepared  by KZ