Title :
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
fDate :
Nov. 28 2011-Dec. 1 2011
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;
Conference_Titel :
Sensing Technology (ICST), 2011 Fifth International Conference on
Conference_Location :
Palmerston North
Print_ISBN :
978-1-4577-0168-9
DOI :
10.1109/ICSensT.2011.6136975
