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- W2413818087 abstract "用选择激发光荧光研究了分子束外延生长的GaAsSb/GaAs单量子阱的光学性质,第一次同时观察到空间直接(Ⅰ类)和间接(Ⅱ类)跃迁.它们表现出不同的特性:Ⅰ类跃迁具有局域化特性,其发光能量不随激发光能量而变;Ⅱ类发光的能量位置随激发功率的增大而蓝移,也随激发光能量的增加而蓝移,复合发光发生在位于异质结GaAs一侧的电子和GaAsSb中的空穴之间,实验结果可以很好地用电荷分离造成的能带弯曲模型来解释,这也是空间间接跃迁的典型特性.还用光荧光的激发强度关系和时间分辨光谱进一步论证了GaAsSb/GaAs能带排列的Ⅱ类特性,并通过简单计算得到了应变和非应变状态下GaAsSb/GaAs异质结的带阶系数." @default.
- W2413818087 created "2016-06-24" @default.
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- W2413818087 date "2003-01-01" @default.
- W2413818087 modified "2023-09-25" @default.
- W2413818087 title "Study of optical properties in GaAs1-xSbx/GaAssingle quant um wells" @default.
- W2413818087 doi "https://doi.org/10.7498/aps.52.1761" @default.
- W2413818087 hasPublicationYear "2003" @default.
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