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本文采用金属有机物化学气相淀积(MOCVD)方法设计并生长了两组InGaAs/AlGaAs应变多量子阱,量子阱的厚度分别为3 nm和6 nm,对其光致发光谱(PL)进行了研究,二者的发光波长分别为843 nm和942 nm,用有限深单量子阱理论近似计算了由于量子尺寸效应和应变效应引起的InGaAs/AlGaAs量子阱带隙的改变,这解释了两组样品室温下PL发射波长变化的原因.

参考文献

[1] Chang K H, Bhattacharya P K, Gibala R. Transmission electron microscopy of strained InyGa1-yAs/GaAs multiquantum wells: The generation of misfit dislocations [J]. Appl. Phys., 1989, 65(9): 3391-3394
[2] Zhang X Q, Mei Z X, Duan N et al. Exciton optical propertities of CdSe/CdZnSe superlattices [J]. Acta Optica Sinica(光学学报),2002,221(1):114-117(in Chinese)
[3] Cao Hongbin,Mao Qingfeng,Zhang Daoyin.1080 nm semiconductor laser for light source of He-pumping[J].Semiconductor Optoelectronics(半导体光电),1999,20(6):1-3(in Chinese)
[4] Wang C A. New materials for diode laser pumping of solid-state lasers [J]. IEEE J. QE., 1992, 28(4): 942-951
[5] Madelung O. Landolt-Bornstein Numerical Data and Functional Relationships in Science and Technology [M]. Ⅲ /17a. Berlin: Springer, 1982
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