Microstructure dependent ammonia sensing properties of nanostuctured zinc oxide thin films using in-house designed gas exposure facility

ZnO nanostructured thin films were grown by spray pyrolysis on alumina substrate pre-patterned with gold interdigitated electrodes at three different substrate temperatures (viz 350°C, 400°C and 450°C). Crystal structure and morphology were determined by GIXRD and FESEM respectively. Ammonia sensing...

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Bibliographic Details
Published inInternational Conference on Nanoscience, Engineering and Technology (ICONSET 2011) pp. 73 - 77
Main Authors Prasad, A. K., Dhonge, Baban P., Mathews, Tom, Dash, S., Tyagi, A. K., Shwathy, R., Murali, N.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2011
Subjects
Ammonia Sensing
Gold
Heating
Microstructure
Morphology
Sensors
Software
Spray Pyrolysis
Substrates
ZnO thin film
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Summary:ZnO nanostructured thin films were grown by spray pyrolysis on alumina substrate pre-patterned with gold interdigitated electrodes at three different substrate temperatures (viz 350°C, 400°C and 450°C). Crystal structure and morphology were determined by GIXRD and FESEM respectively. Ammonia sensing experiments were then performed in the in-house designed Exposure Facility for Gas Sensing (EFGS) at different operating temperatures. The effect of minute changes in morphology on gas sensing was studied and optimum synthesis and operating temperatures was arrived at and related towards efforts to synthesize an efficient ZnO based thin film sensor.
ISBN:9781467300711
1467300713
DOI:10.1109/ICONSET.2011.6167906