Mid/far-infrared photo-detectors based on graphene asymmetric quantum wells

作     者：E Ben Salem R Chaabani S Jaziri 无

作者机构：Institut Preparatoire aux Etudes d'Ingenieurs de Tunis 2 Rue Jawaher Lel Nahrou Monfleury 1089 Tunisie Laboratoire de Physique de la Matiere Condensee Departement de Physique Faculte des Sciences de Tunis Campus Universitaire 2092 Tunisie Departement de Physique Faculte des Sciences de Bizerte Jarzouna 7021 Bizerte 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2016年第25卷第9期

页      面：573-580页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 0803[工学-光学工程] 070301[理学-无机化学] 

基　　金：E.Ben Salem is grateful to J.N. Fuchs (LPS, Université Paris-Sud, b(a)timent 510,F-91405 Orsay Cedex ,France) and F.M. Peeters (University of Antwerp Department of Physics Groenenborgerlaan 171, B-2020 Antwerpen, Belgium) for helpful discussions 

主　　题：graphene quantum wells reflection coefficient photo detector 

摘      要：We conducted a theoretical study on the electronic properties of a single-layer graphene asymmetric quantum *** of energy levels is limited by electron–hole conversion at the barrier interfaces and free-electron ***–hole conversion at the barrier interfaces can be controlled by introducing an asymmetry between barriers and taking into account the effect of the interactions of the graphene sheet with the *** interaction with the substrate induces an effective mass to carriers,allowing observation of Fabry–P′erot resonances under normal incidence and extinction of Klein *** asymmetry,between barriers creates a transmission gap between confined states and free-electron continuum,allowing the large graphene asymmetric quantum well to be exploited as a photo-detector operating at mid-and far-infrared frequency regimes.