公开(公告)号：US20200292489A1

公开(公告)日：2020-09-17

申请号：US15779567

申请日：2016-11-30

Applicant: EMBERION OY

Inventor： Samiul HAQUE ,  Alan COLLI

IPC: G01N27/414

Abstract: An apparatus comprising a pyroelectric layer, a two dimensional conductive channel and a floating gate. The pyroelectric layer is capacitively configured with respect to each of the two dimensional conductive channel and the floating gate. The floating gate comprises electrically connected first and second portions, the first portion is in thermal proximity to the first portion of the pyroelectric layer. The second portion is configured to overlie and gate flow of electrical charge through the two dimensional conductive channel by charge in the second portion of the floating gate. The first portion is functionalised to detect one or more proximal specific species. Such detection gives rise to heat flow to or from the thermally proximal pyroelectric layer to allow the pyroelectric layer to generate an electrical signal dependent upon one or more of the presence and amount of the specific detected species.

公开(公告)号：US20180287004A1

公开(公告)日：2018-10-04

申请号：US15523104

申请日：2015-10-20

Applicant: EMBERION OY

Inventor： Alan COLLI

IPC: H01L31/113 ,  H01L31/0352 ,  G01J5/04 ,  G01J5/34 ,  H01L29/16 ,  H01L29/423 ,  H01L29/778 ,  H01L29/786

CPC classification number: H01L31/113 ,  G01J5/046 ,  G01J5/10 ,  G01J5/34 ,  H01L21/041 ,  H01L29/1606 ,  H01L29/404 ,  H01L29/4238 ,  H01L29/42384 ,  H01L29/778 ,  H01L29/78603 ,  H01L29/78645 ,  H01L29/78684 ,  H01L29/78696 ,  H01L31/035218 ,  H01L31/119

Abstract: An apparatus comprising: pyroelectric material; an electric field sensor; a first conductive electrode comprising a first area adjacent the pyroelectric material; a second conductive electrode comprising a second area adjacent the electric field sensor; and a conductive interconnection between the first conductive electrode and the second conductive electrode, wherein the first area of the first conductive electrode is larger than the second area of the second conductive electrode.

公开(公告)号：US20170316941A1

公开(公告)日：2017-11-02

申请号：US15523476

申请日：2015-10-26

Applicant: EMBERION OY

Inventor： Stefano BORINI ,  Alan COLLI

IPC: H01L21/04 ,  H01L29/786 ,  H01L29/423 ,  H01L29/16

CPC classification number: H01L31/113 ,  G01J5/046 ,  G01J5/10 ,  G01J5/34 ,  H01L21/041 ,  H01L29/1606 ,  H01L29/404 ,  H01L29/4238 ,  H01L29/42384 ,  H01L29/778 ,  H01L29/78603 ,  H01L29/78645 ,  H01L29/78684 ,  H01L29/78696 ,  H01L31/035218 ,  H01L31/119

Abstract: An apparatus and method, the apparatus comprising: at least one charged substrate (3); a channel of two dimensional material (5); and at least one floating electrode (7A-C) wherein the floating electrode comprises a first area (10A-C) adjacent the at least one charged substrate, a second area (11A-C) adjacent the channel of two dimensional material and a conductive interconnection (9A-C) between the first area and the second area wherein the first area is larger than the second area and wherein the at least one floating electrode is arranged to control the level of doping within the channel of two dimensional material.

公开(公告)号：US20210381894A1

公开(公告)日：2021-12-09

申请号：US17283790

申请日：2019-10-11

Applicant: EMBERION OY

Inventor： Alan COLLI ,  Alexander BESSONOV

IPC: G01J3/36 ,  G01J5/10 ,  H01L27/146 ,  H01L31/18

Abstract: A photodetector array comprising at least one first sensor and at least one second sensor on the horizontal surface of the array substrate. The at least one first sensor is sensitive to radiation in a first wavelength range which comprises long-wavelength infrared wavelengths, and the at least one second sensor is sensitive to radiation in a second wavelength range which comprises wavelengths shorter than long-wavelength infrared. The array substrate comprises a vertical cavity on its horizontal surface, and the first sensor comprises a layer of pyroelectric material (65) which extends horizontally across the vertical cavity in the first area. A first part of a layer of two-dimensional layered material at least partly covers the layer of pyroelectric material (65), and a second part of the layer of two-dimensional layered material at least partly covers the foundation of the second sensor.

公开(公告)号：US20190296178A1

公开(公告)日：2019-09-26

申请号：US16361473

申请日：2019-03-22

Applicant: EMBERION OY

Inventor： Alexander BESSONOV ,  Alan COLLI ,  Mark ALLEN

IPC: H01L31/113 ,  H01L31/0352 ,  H01L31/028 ,  G01J1/44

Abstract: A photosensitive transistor or voltage-mode device which comprises a gate electrode, a layer of ambipolar two-dimensional material such as graphene and a layer of photoactive semiconducting material forms a junction with the ambipolar two-dimensional material. The photoactive semiconducting material and the ambipolar two-dimensional material are configured so that there is a non-screening gate voltage interval where an interface voltage at the junction between the photoactive semiconducting layer and the ambipolar two-dimensional material can be changed by applying to the gate electrode a gate voltage which falls within the non-screening gate voltage interval. The non-screening gate voltage interval comprises a flat-band gate voltage at which the interface voltage is zero. An electrical shutter can be operated at this gate voltage.

公开(公告)号：US20190123223A1

公开(公告)日：2019-04-25

申请号：US16096954

申请日：2017-04-25

Applicant: EMBERION OY

Inventor： Michael Robert ASTLEY ,  Alan COLLI

IPC: H01L31/0352 ,  H01L31/02 ,  H01L31/028 ,  H01L31/032 ,  H01L31/113 ,  G01J1/44

CPC classification number: H01L31/035218 ,  G01J1/44 ,  G01J2001/4473 ,  H01L31/02019 ,  H01L31/028 ,  H01L31/032 ,  H01L31/035209 ,  H01L31/112 ,  H01L31/1136

Abstract: An apparatus configured to alternate the application of first and second gate voltages to a gate electrode of a photodetector. A first change in electrical current is relative to a predetermined measurement of electrical current taken at the first gate voltage in the absence of incident electromagnetic radiation, and a second change in electrical current is relative to a predetermined measurement of electrical current taken at the second gate voltage in the absence of the incident electromagnetic radiation. The photodetector comprises a channel, and source and drain electrodes configured to enable flow of electrical current through the channel. Quantum dots are configured to generate charge carriers on exposure to the incident electromagnetic radiation. The gate electrode is configured to generate an electric field upon the application of a gate voltage thereto, and process the signal to at least partially remove any changes in electrical current which are attributed to noise.