公开(公告)号：US10483423B2

公开(公告)日：2019-11-19

申请号：US16165248

申请日：2018-10-19

Applicant: EMBERION OY

Inventor： Richard White ,  Alexander Bessonov ,  Piers Andrew ,  Mark Allen ,  Elisabetta Spigone ,  Michael Robert Astley

IPC: H01L31/112 ,  H01L31/0352 ,  H01L31/113 ,  H01L31/18

Abstract: An apparatus comprises a layer of channel material, source and drain electrodes configured to enable a flow of electrical current through the channel material, and a layer of quantum dot material configured to generate electron-hole pairs on exposure to electromagnetic radiation to produce a detectable change in the electrical current indicative of one or more of the presence and magnitude of the electromagnetic radiation. The layer of quantum dot material is positioned between the channel material and a layer of conductive material. The layers of channel and conductive material have work functions such that respective built-in electric fields are created at the interfaces between the layer of quantum dot material and the channel and conductive material. The electric field at each interface acts in the same direction to promote separation of the electrons and holes of the electron-hole pairs to facilitate production of the detectable change in electrical current.

公开(公告)号：US10396180B2

公开(公告)日：2019-08-27

申请号：US15754460

申请日：2016-08-25

Applicant: EMBERION OY

Inventor： Adam Robinson ,  Darryl Cotton ,  Alexander Bessonov ,  Richard White ,  Yinglin Liu

IPC: H01L21/00 ,  H01L29/66 ,  H01L29/778 ,  H01L31/028 ,  H01L31/0352 ,  H01L31/113 ,  H01L29/16 ,  H01L29/423 ,  G01N27/414

Abstract: A method and apparatus, the method comprising: forming at least two electrodes (23) on a release layer wherein the at least two electrodes are configured to enable a layer of two dimensional material (25) to be provided between the at least two electrodes; providing moldable polymer (27) overlaying the at least two electrodes; wherein the at least two electrodes and the moldable polymer form at least part of a planar surface (29).

公开(公告)号：US10566425B2

公开(公告)日：2020-02-18

申请号：US15558237

申请日：2016-03-02

Applicant: EMBERION OY

Inventor： Richard White ,  Mark Allen

IPC: H01L29/16 ,  H01L29/417 ,  H01L27/146 ,  H01L29/423 ,  H01L29/778 ,  H01L27/16 ,  H01L27/20 ,  H01L27/28 ,  H01L31/028 ,  H01L31/032 ,  H01L31/0352 ,  H01L31/113 ,  H01L31/18 ,  H01L37/02 ,  H01L41/113 ,  H01L41/314 ,  G01N27/414

Abstract: An apparatus comprising: a plurality of sensors (501) arranged in an array (500), each sensor having a source electrode (504), a drain electrode (503), a gate electrode (505) and a channel, wherein the source electrode and drain electrode are elongate and the channel has a channel width defined by the longitudinal extent of the source and/or drain electrode and a channel length defined by the separation between the source and drain electrodes; a common conductive or semiconductive layer (506), which may be made of graphene, comprising the channels of the sensors (501) and arranged to extend over the plurality of sensors of the array and configured to be in electrical contact with at least the source electrode and the drain electrode of each sensor; and wherein the source electrode or drain electrode of each sensor forms a substantially continuous sensor perimeter at least along the channel width, which substantially encloses the other electrode of each sensor to inhibit the flow of charge carriers beyond the sensor perimeter to inhibit crosstalk between sensors in the array.