| Raman properties embeddedof GaSb nanoparticlesin SiO2 films |
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| 作者姓名： | 刘发民 王天民 张立德 |
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| 作者单位： | Department of Applied Physics, Centre of Materials Physics and Chemistry, School of Science, Beijing University of Aeronautics & Astronautics, Beijing 100083, China;Department of Applied Physics, Centre of Materials Physics and Chemistry, School of Science, Beijing University of Aeronautics & Astronautics, Beijing 100083, China;Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China |
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| 基金项目： | Project supported by the Aeronautics Science Foundation of China (Grant No 03G51069). |
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| 摘 要： | The Raman shifts of nanocrystalline GaSb excited by an Ar^ ion laser at wavelengths 514.5, 496.5, 488.0, 476.5,and 457.9nm are studied by an SPEX-1403 laser Raman spectrometer respectively, and they are explained by phonon confinement, tensile stress, resonant Raman scattering and quantum size effects. The Stokes and anti-Stokes Raman spectra of GaSb nanocrystals strongly support the Raman feature of GaSb nanocrystals. The calculated optical spectra compare well with experimental data on Raman scattering GaSb nanocrystals.
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| 关 键 词： | 纳米结晶 拉曼性质 声子约束 张应力效应 半导体 |
| 收稿时间： | 3/4/2004 12:00:00 AM |
Raman properties of GaSb nanoparticles embedded in SiO2 films |
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| Liu Fa-Min,Wang Tian-Min and Zhang Li-De.Raman properties embeddedof GaSb nanoparticlesin SiO2 films[J].Chinese Physics B,2004,13(12):2169-2173. |
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| Authors: | Liu Fa-Min Wang Tian-Min and Zhang Li-De |
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| Institution: | Department of Applied Physics, Centre of Materials Physics and Chemistry, School of Science, Beijing University of Aeronautics & Astronautics, Beijing 100083, China; Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China |
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| Abstract: | The Raman shifts of nanocrystalline GaSb excited by an Ar^{+} ion laser at wavelengths 514.5, 496.5, 488.0, 476.5, and 457.9nm are studied by an SPEX-1403 laser Raman spectrometer respectively, and they are explained by phonon confinement, tensile stress, resonant Raman scattering and quantum size effects. The Stokes and anti-Stokes Raman spectra of GaSb nanocrystals strongly support the Raman feature of GaSb nanocrystals. The calculated optical spectra compare well with experimental data on Raman scattering GaSb nanocrystals. |
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| Keywords: | GaSb nanocrystals novel Raman properties phonon confinement and tensile stress effects |
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