Title of article :
Room temperature liquefied petroleum gas (LPG) sensor
Author/Authors :
Dhawale، نويسنده , , D.S. and Dubal، نويسنده , , D.P. and More، نويسنده , , A.M. and Gujar، نويسنده , , T.P. and Lokhande، نويسنده , , C.D.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Abstract :
The p-polyaniline/n-ZnO thin film heterojunction sensor for room temperature LPG detection was fabricated by electrodepositing polyaniline on chemical bath deposited ZnO film. The heterojunction showed rectifying behavior indicating the formation of a diode with ideality factor 1.10. The formation of diffusion free interface of heterojunction was confirmed from cross-sectional FESEM. The heterojunction sensor has quick and high response towards LPG as compared to N2 and CO2 and exhibited maximum response of 81% upon exposure of 1040 ppm of LPG. The LPG sensing mechanism for heterojunction is modeled through change in height of barrier potential.
Keywords :
LPG sensor , LPG sensor model , stability , Thin films , Heterojunction , Selectivity
Journal title :
Sensors and Actuators B: Chemical
Journal title :
Sensors and Actuators B: Chemical
