Nanocrystalline CdSnO3 thin film as highly sensitive ethanol sensor

Author

Patil, Ganesh E. ; Jain, Gotan H.

Author_Institution

Mater. Res. Lab., Arts, Commerce & Sci. Coll., Nandgaon, India

fYear

2011

fDate

Nov. 28 2011-Dec. 1 2011

Firstpage

249

Lastpage

252

Abstract

Well-defined nanocrystalline CdSnO₃ thin films were prepared by spray pyrolysis technique at a substrate temperature of 350°C. The structural, surface morphological and microstructural properties were investigated using different techniques such as X-ray diffraction, FESEM, AFM and TEM. X-ray diffraction studies revealed that film is nanocrystalline with orthorhombic crystal structure. A gas sensor based on thin film was applied to ethanol sensing test as well as some other gases. Obtained results show that the sensitivity of nanocrystalline CdSnO₃ thin film sensor reaches 576.2 to 100 ppm ethanol with a response time less than 12 s.

Keywords

X-ray diffraction; atomic force microscopy; cadmium compounds; crystal microstructure; gas sensors; nanostructured materials; pyrolysis; scanning electron microscopy; spray coating techniques; surface morphology; thin film sensors; transmission electron microscopy; AFM; CdSnO₃; FESEM; TEM; X-ray diffraction; ethanol sensor; gas sensor; microstructural properties; nanocrystalline thin film; orthorhombic crystal structure; spray pyrolysis technique; surface morphological properties; temperature 350 C; Ethanol; Films; Sensitivity; Substrates; Temperature sensors; X-ray diffraction; Nanocrystalline CdSnO3; Spray Pyrolysis; ethanol sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensing Technology (ICST), 2011 Fifth International Conference on

Conference_Location

Palmerston North

ISSN

2156-8065

Print_ISBN

978-1-4577-0168-9

Type

conf

DOI

10.1109/ICSensT.2011.6136975

Filename

6136975