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NCUEIR > College of Engineering > eedept > Periodical Articles > Item 987654321/13965

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/13965

Title:	Improved AlGaAs/GaAs Double-barrier Resonant Tunneling Structures Using Two-dimensional Source Electrons
Authors:	Wu, Jenq-Shinn;Lee, C. P.;Chang, C. Y.;Chang, K. H.;Liu, D. G.;Liou, D. C.
Contributors:	電子工程學系
Date:	1991-01
Issue Date:	2012-09-10T02:33:01Z
Publisher:	American institute of Physics
Abstract:	We report the enhancement of peak-to-valley current ratios (PVCRs) of double-barrier resonant tunneling structures (DBRTSs) based on the AlGaAs/GaAs material system. The PVCRs as high as 25.4 and 18 have been obtained at 77 K for superlattice and alloy barrier structures with 0.2~pm undoped electrodes, respectively. These are the largest PVCRs to date for AlGaAs/GaAs DBRTSs. The large band bending across the undoped electrodes causes size quantization of the accumulation layer, resulting in better resonant tunneling characteristics.
Relation:	J. Appl. Phys., 69(2): 1122-1123
Appears in Collections:	[eedept] Periodical Articles

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