| (CdZnTe,ZnSeTe)/ZnTe复合量子阱中激子隧穿过程 |
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| 引用本文： | 金华,刘舒,张振中,张立功,郑著宏,申德振.(CdZnTe,ZnSeTe)/ZnTe复合量子阱中激子隧穿过程[J].物理学报,2008,57(10):6627-6630. |
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| 作者姓名： | 金华 刘舒 张振中 张立功 郑著宏 申德振 |
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| 作者单位： | (1)中国科学院长春光学精密机械与物理研究所激发态物理重点实验室，长春 130033; (2)中国人民公安大学安全防范系，北京 102416 |
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| 摘 要： | 设计了(CdZnTe,ZnSeTe)/ZnTe复合量子阱结构，并用吸收光谱、室温光致发光谱和飞秒脉冲抽运-探测方法研究了该复合结构中的激子隧穿过程.分别测量了该结构中CdZnTe/ZnTe量子阱层和ZnSeTe/ZnTe量子阱层中激子衰减时间.观察到从CdZnTe/ZnTe量子阱层向ZnSeTe/ZnTe量子阱层的快速激子隧穿，隧穿时间为5.5ps.
关键词：
(CdZnTe
ZnSeTe)/ZnTe复合量子阱
激子
隧穿
抽运-探测
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| 关 键 词： | (CdZnTe ZnSeTe)/ZnTe复合量子阱 激子 隧穿 抽运-探测 |
| 收稿时间： | 1/5/2008 12:00:00 AM |
| 修稿时间： | 2/2/2008 12:00:00 AM |
Exciton tunnelling in (CdZnTe,ZnSeTe)/ZnTe complex quantum wells |
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| Jin Hua,Liu Shu,Zhang Zhen-Zhong,Zhang Li-Gong,Zheng Zhu-Hong,Shen De-Zhen.Exciton tunnelling in (CdZnTe,ZnSeTe)/ZnTe complex quantum wells[J].Acta Physica Sinica,2008,57(10):6627-6630. |
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| Authors: | Jin Hua Liu Shu Zhang Zhen-Zhong Zhang Li-Gong Zheng Zhu-Hong Shen De-Zhen |
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| Abstract: | A new type of (CdZnTe,ZnSeTe)/ZnTe complex quantum wells was designed. Exciton tunneling process was investigated in this complex structure using absorption spectra, photoluminescence (PL) spectra and pump-probe measurements. The exciton decay time was measured in CdZnTe/ZnTe quantum well layers and ZnSeTe/ZnTe quantum well layers, respectively. And a fast exciton tunneling from CdZnTe/ZnTe quantum well to ZnSeTe/ZnTe quantum well was observed by transient differential trans mission. The tunneling time is 5.5ps. |
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| Keywords: | (CdZnTe |
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