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US 11,899,335 B2Granted
IR source and phased antenna with graphene layer and related methods
AssigneeUniversity of Central Florida Research Foundation, Inc.
InventorsMichael N. Leuenberger, Muhammad Waqas Shabbir
Life of this patent
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Abstract
An IR source may also include an electrically conductive layer defining a back contact. The IR source may also include a first dielectric layer over the electrically conductive layer, a transparent electrically conductive layer over the first dielectric layer, and a second dielectric layer over the transparent electrically conductive layer. The IR source may include a graphene layer over the second dielectric layer and having a perforated pattern, a protective layer over the graphene layer, and first and second electrically conductive contacts coupled to the graphene layer. The graphene layer may be configured to emit IR radiation when a voltage signal is applied between the first and second electrically conductive contacts.
Claims28
An infrared (IR) source comprising:
- an electrically conductive layer;
- a first dielectric layer over the electrically conductive layer;
- a transparent electrically conductive layer over the first dielectric layer;
- a second dielectric layer over the transparent electrically conductive layer;
- a graphene layer over the second dielectric layer and having a perforated pattern;
- and
- first and second electrically conductive contacts coupled to the graphene layer;
- the graphene layer configured to emit IR radiation
- in a frequency range based upon a voltage signal applied between the first and second electrically conductive contacts, and
- with varying phase from adjacent portions of the perforated pattern of the graphene layer based upon the voltage signal applied between the first and second electrically conductive contacts.
7 more elements
A phased array comprising:
- an electrically conductive layer;
- a first dielectric layer over the electrically conductive layer;
- a transparent electrically conductive layer over the first dielectric layer;
- a second dielectric layer over the transparent electrically conductive layer;
- a graphene layer over the second dielectric layer and having a perforated pattern comprising an array of elliptical holes, the graphene layer configured to emit infrared (IR) radiation in a frequency range;
- first and second electrically conductive contacts coupled to the graphene layer;
- and
- circuitry configured to
- apply a voltage signal between the first and second electrically conductive contacts,
- change the voltage signal to selectively set phase change between the IR radiation emitted from adjacent elliptical holes to emit the IR radiation at an angle from normal, and
- change the voltage signal to selectively set the frequency range of the IR radiation.
8 more elements
A method for making an infrared (IR) source comprising:
- forming a first dielectric layer over an electrically conductive layer;
- forming a transparent electrically conductive layer over the first dielectric layer;
- forming a second dielectric layer over the transparent electrically conductive layer;
- forming a graphene layer over the second dielectric layer and having a perforated pattern;
- and
- forming first and second electrically conductive contacts coupled to the graphene layer;
- the graphene layer configured to emit IR radiation
- in a frequency range based upon a voltage signal applied between the first and second electrically conductive contacts, and
- with varying phase from adjacent portions of the perforated pattern of the graphene layer based upon the voltage signal applied between the first and second electrically conductive contacts.
6 more elements
An infrared (IR) source comprising:
- an electrically conductive layer;
- a first dielectric layer over the electrically conductive layer;
- a transparent electrically conductive layer over the first dielectric layer;
- a second dielectric layer over the transparent electrically conductive layer;
- a graphene layer over the second dielectric layer and having a perforated pattern comprising an array of elliptical holes;
- and
- first and second electrically conductive contacts coupled to the graphene layer;
- the graphene layer configured to emit IR radiation in a frequency range based upon a voltage signal applied between the first and second electrically conductive contacts, the IR radiation being emitted at an angle from normal based upon the voltage signal.
5 more elements
An infrared (IR) source comprising:
- an electrically conductive layer;
- a first dielectric layer over the electrically conductive layer;
- a transparent electrically conductive layer over the first dielectric layer;
- a second dielectric layer over the transparent electrically conductive layer;
- a graphene layer over the second dielectric layer and having a perforated pattern;
- and
- first and second electrically conductive contacts coupled to the graphene layer;
- the graphene layer configured to emit IR radiation in a frequency range based upon a voltage signal applied between the first and second electrically conductive contacts and at an angle from normal based upon the voltage signal.
5 more elements
An infrared (IR) source comprising:
- an electrically conductive layer coupled to a reference voltage;
- a first dielectric layer over the electrically conductive layer;
- a transparent electrically conductive layer over the first dielectric layer;
- a second dielectric layer over the transparent electrically conductive layer;
- a graphene layer over the second dielectric layer and having a perforated pattern;
- and
- first and second electrically conductive contacts coupled to the graphene layer;
- the graphene layer configured to emit IR radiation in a frequency range based upon a voltage signal applied between the first and second electrically conductive contacts.
5 more elements
A method for making an infrared (IR) source comprising:
- forming a first dielectric layer over an electrically conductive layer;
- forming a transparent electrically conductive layer over the first dielectric layer;
- forming a second dielectric layer over the transparent electrically conductive layer;
- forming a graphene layer over the second dielectric layer and having a perforated pattern;
- and
- forming first and second electrically conductive contacts coupled to the graphene layer;
- the graphene layer configured to emit IR radiation in a frequency range based upon a voltage signal applied between the first and second electrically conductive contacts and at an angle from normal based upon the voltage signal.
4 more elements
Dependencies are inferred from the claim text.