The photocurrent of resonant tunneling diode controlled by the charging effects of quantum dots

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	The photocurrent of resonant tunneling diode controlled by the charging effects of quantum dots
	Zhou, DM ; Weng, QC ; Wang, WP ; Li, N ; Zhang, B ; Hu, WD ; Chen, XS ; Lu, W ; Wang, WX ; Chen, H
刊名	OPTICAL AND QUANTUM ELECTRONICS
	2013
卷号	45 期号:7 页码:687
关键词	Quantum dot Resonant tunneling diode Single photon detection
ISSN号	0306-8919
通讯作者	Chen, XS (reprint author), Chinese Acad Sci, Shanghai Inst Tech Phys, Natl Lab Infrared Phys, Shanghai 200083, Peoples R China.
中文摘要	We experimentally studied the photocurrent of AlAs/GaAs/AlAs double barrier resonant tunneling diode (RTD), which is composed of an InAs layer of self-assembled quantum-dots on top of AlAs barrier layer. It is found that the charging InAs quantum dots can effectively modulate the carrier transport properties of the RTD. Moreover, we also found that the resonant tunneling current through a single energy level of an individual quantum dot is extremely sensitive to the photo-excited holes bound nearby the dot, and the presence of the holes lowers the electrostatic energy of the quantum dot state. In addition, it is also observed that the photocurrent behaves like step way with the individual photon pulse excitation when the illumination is low enough. The experiment results well demonstrated the quantum amplified characteristics of the device.
资助信息	State Key Program for Basic Research of China [2006CB921507]; National Natural Science Foundation of China [10725148, 10734090, 10990104, 11274331, 61006090, 10874196]; Key Fund of Shanghai Science and Technology Foundation [09dz2202200, 10JC1416100, 10510704700]; Shanghai Rising-Star Program
语种	英语
公开日期	2014-01-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57582]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhou, DM,Weng, QC,Wang, WP,et al. The photocurrent of resonant tunneling diode controlled by the charging effects of quantum dots[J]. OPTICAL AND QUANTUM ELECTRONICS,2013,45(7):687.
APA	Zhou, DM.,Weng, QC.,Wang, WP.,Li, N.,Zhang, B.,...&Chen, H.(2013).The photocurrent of resonant tunneling diode controlled by the charging effects of quantum dots.OPTICAL AND QUANTUM ELECTRONICS,45(7),687.
MLA	Zhou, DM,et al."The photocurrent of resonant tunneling diode controlled by the charging effects of quantum dots".OPTICAL AND QUANTUM ELECTRONICS 45.7(2013):687.