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半导体量子阱材料的调制光谱研究
Study of Modulation Spectrum of Semiconductor Quantum Wells
【摘要】 我们采用光调制透射方法从InxGa1-xAs/GaAs单量子阱样品测量了调制透射谱,得到了InGaAs量子阱中激子的清晰的调制结构.由电场调制原理对调制透射谱进行拟合,得到了激子的跃迁能量.结果与其他测量以及理论计算结果有较好的一致.
【Abstract】 Using the phototransmission spectrum technique, we have measured the phototransmissionspectra from InxGa1-xAs/GaAs single quantum well samples.The clear modulation structureof different excitons in InGaAs well has been got. From the fitting based on the electric field-modulation mechanism,the exciton energies have been obtained which are in good agreementwith other measurements and theoretical calculation.
【关键词】 半导体量子阱;
调制光谱;
InGaAs/GaAs;
【Key words】 Semiconductor quantum well; Modulation spectroscopy; InGaAs/GaAs;
【Key words】 Semiconductor quantum well; Modulation spectroscopy; InGaAs/GaAs;
- 【文献出处】 半导体学报 ,Chinese Journal of Semiconductors , 编辑部邮箱 ,1991年03期
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