公开(公告)号：US20220172905A1

公开(公告)日：2022-06-02

申请号：US17617671

申请日：2020-04-29

Applicant: CAMBRIDGE ENTERPRISE LIMITED

Inventor： Shahab AKHAVAN ,  Amin Taheri NAJAFABADI ,  Ilya GOYKHMAN ,  Luigi OCCHIPINTI ,  Andrea Carlo FERRARI

IPC: H01G9/20 ,  H01G9/00 ,  H01L27/30 ,  H01L51/42 ,  H01L51/50 ,  H01L51/52 ,  H01L51/00 ,  G01N27/12

Abstract: We disclose herein a hetero-structure comprising: a curved material; at least one layer of a first material rolled around the curved material; at least one intermediate layer rolled on the at least one layer of the first material; and at least one layer of a second material rolled around the at least one intermediate layer.

公开(公告)号：US20220005968A1

公开(公告)日：2022-01-06

申请号：US17280791

申请日：2019-09-30

Applicant: Cambridge Enterprise Limited

Inventor： Andrea Carlo FERRARI ,  Luigi OCCHIPINTI ,  Alfonso RUOCCO

IPC: H01L31/103 ,  H01L31/112 ,  H01L31/028

Abstract: A photodetector comprising an optical waveguide structure comprising at least three stripes spaced from one another such that a slot is present between each two adjacent stripes of the at least three stripes. A graphene absorption layer is provided over or underneath the at least three stripes. There is an electrode for each stripe, over or underneath the graphene absorption layer. The photodetector is configured such that two adjacent electrodes are biased using opposite polarities to create a p-n junction effect in a portion of the graphene absorption layer. In particular the portion of the graphene absorption layer is located over or underneath each respective slot between said each two adjacent stripes.