Large scale synthesis of silicon nanowires by laser ablation
被引:27
作者:
Tang, YH
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机构:
City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong KongCity Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong
Tang, YH
[1
]
Zhang, YF
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机构:
City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong KongCity Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong
Zhang, YF
[1
]
Lee, CS
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机构:
City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong KongCity Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong
Lee, CS
[1
]
Wang, N
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机构:
City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong KongCity Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong
Wang, N
[1
]
Yu, DP
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机构:
City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong KongCity Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong
Yu, DP
[1
]
Bello, I
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City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong KongCity Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong
Bello, I
[1
]
Lee, ST
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机构:
City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong KongCity Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong
Lee, ST
[1
]
机构:
[1] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong
来源:
ADVANCES IN LASER ABLATION OF MATERIALS
|
1998年
/
526卷
关键词:
D O I:
10.1557/PROC-526-73
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Quasi one-dimensional materials have attracted considerable attention in recent years because of its potential to both fundamental physics and nanoelectronic applications. More recently, we have achieved large scale synthesis of silicon nanowires (SINW) at a high growth rate by laser ablation of Si target at 1200 degrees C. The laser source was a pulsed KrF excimer laser and the Si targets were made by pressing Si powder of 5 microns in size. 50 seem Ar was used as a carrying gas flowing from the side near the Si target towards a water-cooled copper finger. Si nanowires have been grown with diameters ranging from 3 to 43 Mn and several hundreds microns in length after 2 hours of laser ablation of Si target. The SINWs were analyzed by XRD, Raman, EDS, TEM and HRTEM. Successful large scale synthesis of SINW by laser ablation extends the pulsed laser ablation method from depositing thin films to synthesis of nanowires.