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SiO2-enhanced synthesis of Si nanowires by laser ablation

Authors Wang, N. View this author's profile
Zhang, YF
Tang, YH
Lee, CS
Lee, ST
Issue Date 1998
Source Applied physics letters , v. 73, (26), December 1998, p. 3902-3904
Summary Si nanowires with uniform size have been synthesized by laser ablation of highly pure Si powder targets mixed with SiO2. A bulk quantity of Si nanowires was successfully obtained by mixing 30%-70% of SiO2 into the Si powder target. SiO2 played a crucial role in enhancing the formation and growth of the Si nanowires. The morphology and microstructure of the Si nanowire tips have been systematically characterized by means of high-resolution transmission electron microscopy. No evidence of metal was found at the tips. The results suggest that Si oxide is more important than metal in catalyzing the formation of Si nanowires. (C) 1998 American Institute of Physics. [S0003-6951(98)03452-4].
ISSN 0003-6951
Language English
Format Article
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