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题名: Time-Resolved Photoluminescence of Metamorphic InGaAs Quantum Wells
作者: Ma SS (Ma Shan-Shan);  Wang, BR (Wang Bao-Rui);  Sun BQ (Sun Bao-Quan);  Wu DH (Wu Dong-Hai);  Ni HQ (Ni Hai-Qiao);  Niu ZC (Niu Zhi-Chuan)
发表日期: 2009
摘要: We investigate the temperature dependence of photoluminescence (PL) and time-resolved PL on the metamorphic InGaAs quantum wells (QWs) with an emission wavelength of 1.55 mu m at room temperature. Time-resolved PL measurements reveal that the optical properties can be partly improved by introducing antimony (Sb) as a surfactant during the sample growth. The temperature dependence of the radiative lifetime is measured, showing that for QWs grown with Sb assistance, the intrinsic exciton emission is dominated when the temperature is below 60 K, while the nonradiative process becomes activated with further increases in temperature. However, without Sb assistance, the nonradiative centers are activated when the temperature is higher than 20 K.
KOS主题词: atomic layer deposition
刊名: CHINESE PHYSICS LETTERS
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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Ma, SS (Ma Shan-Shan); Wang, BR (Wang Bao-Rui); Sun, BQ (Sun Bao-Quan); Wu, DH (Wu Dong-Hai); Ni, HQ (Ni Hai-Qiao); Niu, ZC (Niu Zhi-Chuan) .Time-Resolved Photoluminescence of Metamorphic InGaAs Quantum Wells ,CHINESE PHYSICS LETTERS,OCT 2009 ,26(10):Art.No.107803
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