Hole-net structure and photoluminescence emission monocrystalline on silicon irradiated by laser

xu li; huang wei-qi; wu ke-yue; jin feng; wang hai-xu

Volume 20 Issue 01

Jan. 2008

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Article Navigation > High Power Laser and Particle Beams > 2008 > 20(01): 0-

zhang peng, song yan-rong, zhang zhi-gang. Characteristics of linear Thomson scattering spectrum with few-cycle laser pulse[J]. High Power Laser and Particle Beams, 2006, 18.

Citation:

xu li, huang wei-qi, wu ke-yue, et al. Hole-net structure and photoluminescence emission monocrystalline on silicon irradiated by laser[J]. High Power Laser and Particle Beams, 2008, 20.

zhang peng, song yan-rong, zhang zhi-gang. Characteristics of linear Thomson scattering spectrum with few-cycle laser pulse[J]. High Power Laser and Particle Beams, 2006, 18.

Citation:

xu li, huang wei-qi, wu ke-yue, et al. Hole-net structure and photoluminescence emission monocrystalline on silicon irradiated by laser[J]. High Power Laser and Particle Beams, 2008, 20.

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Hole-net structure and photoluminescence emission monocrystalline on silicon irradiated by laser

1.
Key Laboratory of Photoelectron Technology and Application,Guizhou University,Guiyang 550026,China;
2.
Department of Physics,Guizhou Educational College,Guiyang 550003,China

Publish Date: 2008-01-15

Abstract

Abstract

A kind of hole-net structure can be formed on silicon sample irradiated by pulse laser with power of 0.5 J·s-1·cm-2 and wavelength of 1 064 nm. The photoluminescence(PL) emission is enhanced by the hole-net structure. The PL peak center is about 700 nm. The oxidation-free silicon sample almost does not emit, which proves that oxidation of silicon may be most important in enhancing PL emission. The quantum confinement-luminescence center model is used to explain the increasing PL emission in the hole-net structure. The plasma wave model is used to explain the forming mechanism of hole-net structure. Under the optimum conditions in preparing process, the sample with enhanced PL emission and more stable low-dimensional structures can be obtained by 9 s irradiation.
- laser irradiation,
- hole-net structure,
- photoluminescence enhancement,
- oxidation

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