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题名: Optical and electrical investigation of low dimensional self-assembled InAs quantum dot field effect transistors
作者: Zeng, YX (Zeng, Yuxin);  Liu, W (Liu, Wei);  Yang, FH (Yang, Fuhua);  Xu, P (Xu, Ping);  Tan, PH (Tan, Pingheng);  Zheng, HZ (Zheng, Houzhi);  Zeng, YP (Zeng, Yiping);  Xing, YJ (Xing, Yingjie);  Yu, DP (Yu, Dapeng)
出版日期: 2006
会议日期: NOV 24-27, 2004
摘要: Self-assembled InAs QD dot-in-a-well (DWELL) structures were grown on GaAs substrate by MBE system, and heterojunction modulation-doped field effect transistor (MODFET) was fabricated. The optical properties of the samples show that the photoluminescence of InAs/GaAs self-assembled quantum dot (SAQD) is at 1.265 mu m at 300 K. The temperature-dependence of the abnormal redshift of InAs SAQD wavelength with the increasing temperature was observed, which is closely related with the inhomogeneous size distribution of the InAs quantum dot. According to the electrical measurement, high electric field current-voltage characteristic of the MODFET device were obtained. The embedded InAs QD of the samples can be regard as scattering centers to the vicinity of the channel electrons. The transport property of the electrons in GaAs channel will be modulated by the QD due to the Coulomb interaction. It has been proposed that a MODFET embedded with InAs QDs presents a novel type of field effect photon detector.
会议名称: 2nd Asian Conference on Nanoscience and Nanotechnology
KOS主题词: Photoluminescence;  Chrysanthemum morifolium
会议文集: International Journal of Nanoscience丛书标题: International Journal of Nanoscience Series
专题: 中国科学院半导体研究所(2009年前)_会议论文

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Zeng, YX (Zeng, Yuxin); Liu, W (Liu, Wei); Yang, FH (Yang, Fuhua); Xu, P (Xu, Ping); Tan, PH (Tan, Pingheng); Zheng, HZ (Zheng, Houzhi); Zeng, YP (Zeng, Yiping); Xing, YJ (Xing, Yingjie); Yu, DP (Yu, Dapeng) .Optical and electrical investigation of low dimensional self-assembled InAs quantum dot field effect transistors .见:WORLD SCIENTIFIC PUBL CO PTE LTD .International Journal of Nanoscience丛书标题: International Journal of Nanoscience Series ,PO BOX 128 FARRER RD, SINGAPORE 9128, SINGAPORE ,2006,Vol 5 No 6 5 (6): 721-727
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