Graphene-based photodetector
AssigneeHuawei Technologies Co., Ltd.
InventorHuanhuan Gu
Life of this patent
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Abstract
Various graphene-based photodetectors are disclosed. An example photodetector device may include: a substrate; a first antenna component fabricated on the substrate, the first antenna component comprising one or more antenna electrodes; a second antenna component fabricated on the substrate, the second antenna component comprising one or more antenna electrodes; a source region coupled to the first antenna component and the substrate; and a drain region coupled to the second antenna component and the substrate; wherein the one or more antenna electrodes in the first antenna component and the second antenna component are made of graphene.
Claims19
A photodetector device comprising:
- a substrate;
- a first graphene-based antenna component fabricated on the substrate,
- the first graphene-based antenna component comprising one or more graphene antenna electrodes;
- a second graphene-based antenna component fabricated on the substrate,
- the graphene-based second antenna component comprising one or more graphene antenna electrodes;
- a source region coupled to the first graphene-based antenna component and the substrate;
- and
- a drain region coupled to the second graphene-based antenna component and the substrate;
- wherein a thickness of the first or second graphene-based antenna component is less than 5 nm.
A system comprising a plurality of photodetector devices arranged in one or more arrays to detect a metal object,
- wherein each photodetector device comprises:
- a substrate;
- a first graphene-based antenna component fabricated on the substrate,
- the first graphene-based antenna component comprising one or more graphene antenna electrodes;
- a second graphene-based antenna component fabricated on the substrate,
- the second graphene-based antenna component comprising one or more graphene antenna electrodes;
- a source region coupled to the first graphene-based antenna component and the substrate;
- and
- a drain region coupled to the second graphene-based antenna component and the substrate;
- wherein a thickness of the first or second graphene-based antenna component is less than 5 nm.
Dependencies are inferred from the claim text.