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公开(公告)号:WO2017025130A1
公开(公告)日:2017-02-16
申请号:PCT/EP2015/068425
申请日:2015-08-11
Applicant: UNIVERSITÄT AUGSBURG
Inventor: MIKHAILOV, Sergey , GUSEV, Gennady , KVON, Ze Don , SAVOSTIYANOVA, Nadezda , LEVIN, Alexandre , RODYAKINA, E. E. , LATYSHEV, A. V.
IPC: H01L31/101
CPC classification number: H01L31/101
Abstract: The invention refers to an detector for detecting electromagnetic radiation with a high sensitivity. The detector is comprising a substrate (3), a conducting layer (1) which is confining a two-dimensional charge carrier gas, a dielectric layer (4) lying on the conducting layer, at least two electric contacts (2a, 2b) being electrically connected with the conducting layer and at least one top gate contact (5) covering a part of the dielectric layer, wherein the top gate contact is comprising a first section (5 a) and a second section (5b) which are connected with each other by a bridge section (5 c) having a minimum width (d) smaller than the width (D) of the first and second sections. The bridge section thereby is forming a constricted portion of the top gate contact, which is defining a quantum point contact (QPC) in the conducting layer when the top gate contact is electrically biased with respect to the conducting layer.
Abstract translation: 本发明涉及用于以高灵敏度检测电磁辐射的检测器。 检测器包括:衬底(3),限制二维电荷载气的导电层(1),位于导电层上的电介质层(4),至少两个电触头(2a,2b) 与所述导电层电连接,以及覆盖所述电介质层的一部分的至少一个顶栅触点(5),其中所述顶栅触点包括与每个所述导电层连接的第一部分(5a)和第二部分(5b) 另外通过具有小于第一和第二部分的宽度(D)的最小宽度(d)的桥接部分(5c)。 因此,桥接部分形成顶部栅极接触的缩小部分,当顶部栅极接触件相对于导电层被电气偏置时,其在导电层中限定了量子点接触(QPC)。