Title:
ELECTROMAGNETIC WAVE DETECTOR, ELECTROMAGNETIC WAVE DETECTOR ARRAY, AND ELECTROMAGNETIC WAVE DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/173347
Kind Code:
A1
Abstract:
This electromagnetic wave detector is provided with light reception graphene and reference graphene that are aligned on an insulating layer, first electrodes and second electrodes that are disposed so as to oppose each other and sandwich the light reception graphene and reference graphene, a gate electrode for applying a gate voltage to the light reception graphene and reference graphene, and a balanced circuit and detection circuit that are connected between the second electrodes. If electromagnetic waves are incident on the light reception graphene, photocarriers will be generated through in-band transition. If electromagnetic waves are incident on the reference graphene, photocarriers will not be generated because of the Pauli blocking effect. In a state where no electromagnetic waves are incident on the light reception graphene or reference graphene, the balanced circuit causes the first electrodes and second electrodes to have the same potential. The electrical signal between the second electrodes is detected in a state where electromagnetic waves are incident on the light reception graphene and reference graphene.
Inventors:
SHIMATANI MASAAKI (JP)
OGAWA SHIMPEI (JP)
FUJISAWA DAISUKE (JP)
OKUDA SATOSHI (JP)
OGAWA SHIMPEI (JP)
FUJISAWA DAISUKE (JP)
OKUDA SATOSHI (JP)
Application Number:
PCT/JP2017/037817
Publication Date:
September 27, 2018
Filing Date:
October 19, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01J1/02; H01L31/0248
Domestic Patent References:
| WO2016121408A1 | 2016-08-04 |
Foreign References:
| JP2015045629A | 2015-03-12 | |||
| JP2017011209A | 2017-01-12 | |||
| JP2016219805A | 2016-12-22 | |||
| JP2013537700A | 2013-10-03 | |||
| JP2016039392A | 2016-03-22 | |||
| JP2003282924A | 2003-10-03 | |||
| US20170041564A1 | 2017-02-09 | |||
| US20150372159A1 | 2015-12-24 | |||
| US20130082241A1 | 2013-04-04 | |||
| JP2015031666A | 2015-02-16 | |||
| JP2013502735A | 2013-01-24 |
Other References:
LEE, YOUNGBIN ET AL.: "High-Performance Perovskite-Graphene Hybrid Photodetector", ADVANCED MATERIALS, vol. 27, no. 1, 18 October 2014 (2014-10-18), pages 41 - 46, XP055454321
RYZHII, VICTOR ET AL.: "Terahertz and infrared detectors based on graphene structures", INFRARED PHYSICS & TECHNOLOGY, vol. 54, no. 3, 2011, pages 302 - 305, XP028192058
See also references of EP 3605038A4
RYZHII, VICTOR ET AL.: "Terahertz and infrared detectors based on graphene structures", INFRARED PHYSICS & TECHNOLOGY, vol. 54, no. 3, 2011, pages 302 - 305, XP028192058
See also references of EP 3605038A4
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
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