Synthesis of GaAs nanowires with very small diameters and their optical properties with the radial quantum-confinement effect
Synthesis of GaAs nanowires with very small diameters and their optical properties with the radial quantum-confinement effect
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DOI：
10.1063/1.3229886
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发表时间：
2009-09
影响因子：
4
通讯作者：
Guoqiang Zhang;K. Tateno;H. Sanada;T. Tawara;H. Gotoh;H. Nakano
中科院分区：
文献类型：
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作者：
Guoqiang Zhang;K. Tateno;H. Sanada;T. Tawara;H. Gotoh;H. Nakano
我们报告了直径非常小的 GaAs 纳米线的合成和光学特性。我们通过使用标称直径为 5、10、20、40 和 60 nm 的尺寸选择性金颗粒来生长 GaAs 纳米线。直径控制的纳米线使我们能够观察到由于二维径向量子限制效应，随着金颗粒尺寸的减小，单个纳米线的自由激子发射峰的蓝移。我们还分析了这些裸 GaAs 量子纳米线的吸收和发射偏振各向异性。
We report the synthesis and optical properties of GaAs nanowires with very small diameters. We grew the GaAs nanowires by using size-selective gold particles with nominal diameters of 5, 10, 20, 40, and 60 nm. The diameter-controlled nanowires enable us to observe blueshifts of the free exitononic emission peak from individual nanowires with decreasing gold-particle size due to the two-dimensional radial quantum-confinement effect. We also analyze the absorption and emission polarization anisotropies of these bare GaAs quantum nanowires.