High-resolution transmission electron microscopy investigation of the nanostructure of nanocrystalline pulsed laser deposition SnO2 thin films

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	High-resolution transmission electron microscopy investigation of the nanostructure of nanocrystalline pulsed laser deposition SnO2 thin films
	Chen Z.; Lai J.K.L.; Shek C.H.; Chen H.
	2005-05-04
Source Publication	Journal of the Australasian Ceramic Society
ISSN	10186689
Volume	41 Issue:1 Pages:22-25
Abstract	Pulsed laser deposition (PLD) was used to grow nanocrystalline SnO thin films into glass substrates. The nanocrystallines and microstructure performances of SnO thin films grown by PLD techniques have been shown to be highly sensitive to the deposition conditions. The reactive PLD process was carried out at room temperature under the working pressure of about 2 × 10 mbar. Experimental results indicate the PLD deposition under vacuum is found to produce thin films that are composed of both a polycrystalline SnO phase and an amorphous SnO phase. In particular, the presence of such an amorphous SnO phase in the thin films greatly limits their practical use as gas-sensing devices. High-resolution transmission electron microscopy (HRTEM) observations revealed that the SnO nanocrystallines with tetragonal rutile structure embed in an amorphous SnO matrix, and tend to be in quasi-spherical shape. This quasi-spherical SnO nanocrystalline contains a high density of defects, such as twin boundaries and edge dislocations. The microstructure of the thin films is highly sensitive to their PLD conditions.
Keyword	Nanocrystalline Pulsed laser deposition Thin film
URL	View the original
Language	英語English
Fulltext Access	View Full-Text via Scopus
Document Type	Journal article
Collection	University of Macau
Affiliation	City University of Hong Kong
Recommended Citation GB/T 7714	Chen Z.,Lai J.K.L.,Shek C.H.,et al. High-resolution transmission electron microscopy investigation of the nanostructure of nanocrystalline pulsed laser deposition SnO2 thin films[J]. Journal of the Australasian Ceramic Society, 2005, 41(1), 22-25.
APA	Chen Z.., Lai J.K.L.., Shek C.H.., & Chen H. (2005). High-resolution transmission electron microscopy investigation of the nanostructure of nanocrystalline pulsed laser deposition SnO2 thin films. Journal of the Australasian Ceramic Society, 41(1), 22-25.
MLA	Chen Z.,et al."High-resolution transmission electron microscopy investigation of the nanostructure of nanocrystalline pulsed laser deposition SnO2 thin films".Journal of the Australasian Ceramic Society 41.1(2005):22-25.

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