Electromagnetic wave detector and electromagnetic wave detector array
US10784394B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2017 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Apr 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2005/0077
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electromagnetic wave detector, which photoelectrically converts and detects an electromagnetic wave incident on a graphene layer, including: a substrate having a front surface and a back surface; a lower insulating layer provided on the front surface of the substrate; a ferroelectric layer and a pair of electrodes provided on the lower insulating layer, the pair of electrodes arranged to face each other with the ferroelectric layer sandwiched therebetween; an upper insulating layer provided on the ferroelectric layer; and a graphene layer arranged on the lower insulating layer and the upper insulating layer to connect the two electrodes. Alternatively, the electromagnetic wave detector includes: a graphene layer provided on the lower insulating layer; and a ferroelectric layer provided on the graphene layer with an upper insulating layer interposed therebetween and a pair of electrodes provided on the graphene layer to face each other with the ferroelectric layer sandwiched therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.