Comparative study of laser ablation techniques for fabricating nanocrystalline SnO2 thin films for sensors
โ Scribed by W.S. Hu; Z.G. Liu; Z.C. Wu; D. Feng
- Book ID
- 119125795
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 347 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0167-577X
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Nanocrystalline SnO 2 thin film was prepared by cathodic electrodeposition-anodic oxidation and its structure was characterized by X-ray diffraction, SEM, UV-visible absorption and nitrogen adsorption-desorption by BET method. The obtained film has a surface area of 137.9 m 2 /g with grain sized of
H, in air can be detected with sensors based on semiconductor oxides. A new technique for growing a hydrogen sensor based on SnO,(Bi,O,) thin films is presented here. The thin films have a thickness of 200-250 nm and the metals are in the atomic ratio Bi/Sn.= (3-S) at.%](97-95) at.%. The two metals