Spatial distribution of damping coefficient of ablated particles prepared by pulsed laser ablation in Ar gas

Wang Yinglong; Hu Ziqiang; Deng Zechao; Zhai Xiaolin; Chu Lizhi; Ding Xuecheng; Fu Guangsheng

doi:10.3788/HPLPB20122408.1965

Volume 24 Issue 08

Nov. 2012

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(08): 1965-1969

Su Jian, Zeng Zhi, Liu Yue, et al. Monte Carlo simulation of muon radiation environment in China Jinping Underground Laboratory[J]. High Power Laser and Particle Beams, 2012, 24: 3015-3018. doi: 10.3788/HPLPB20122412.3015

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Wang Yinglong, Hu Ziqiang, Deng Zechao, et al. Spatial distribution of damping coefficient of ablated particles prepared by pulsed laser ablation in Ar gas[J]. High Power Laser and Particle Beams, 2012, 24: 1965-1969. doi: 10.3788/HPLPB20122408.1965

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Spatial distribution of damping coefficient of ablated particles prepared by pulsed laser ablation in Ar gas

doi: 10.3788/HPLPB20122408.1965

1.
Key Laboratory of Photo-Electricity Information Materials of Hebei Province,College of Physics Science and Technology,Hebei University,Baoding 071002,China

Received Date: 2011-10-25
Publish Date: 2012-08-15

Abstract

Abstract

The nanocrystalline silicon thin films were deposited on circular substrates with radiuses of 2.0, 2.5, 3.0, 3.5 and 4.0 cm by pulsed laser ablation in argon gas of 10 Pa at room temperature. The surface morphology and microscopic structure of the films were characterized by scanning electron microscopy, X-ray diffraction analysis and Raman spectroscopy. The results indicate that both the average size of Si nanoparticles and the damping coefficients of ablated particles are distributed symmetrically relative to the plume axis, and decrease with increasing the angle between substrate and plume axis. Meanwhile, the average size of Si nanoparticles and the damping coefficients of ablated particles decrease as the radius of circular substrate increases.
- pulsedlaserablation,
- averagesize,
- ablatedparticles,
- dampingcoefficient,
- spatialdistribution

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