Optical structure for realizing dual-channel efficient light absorption based on graphene

An optical structure and graphene technology, applied in the field of optical structures, can solve problems such as narrow absorption bandwidth, unfavorable practical application of devices, and changes in absorption efficiency

Pending Publication Date: 2020-04-17
GUANGXI NORMAL UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an optical structure based on graphene to achieve dual-channel high-efficiency light absorption, aiming to solve the problem that there are few studies on light absorption devices applied to the visible light-near infrared band, and th...

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  • Optical structure for realizing dual-channel efficient light absorption based on graphene
  • Optical structure for realizing dual-channel efficient light absorption based on graphene
  • Optical structure for realizing dual-channel efficient light absorption based on graphene

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Embodiment Construction

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, not It indicates or implies that the pointe...

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Abstract

The invention discloses an optical structure for realizing dual-channel efficient light absorption based on graphene. The optical structure comprises a metal grating, a dielectric layer and graphene nano strips, the metal grating is provided with a groove; the dielectric layer is filled with a medium; the dielectric layer is located in the groove, a first cavity and a second cavity are formed between the dielectric layer and the metal grating, the first cavity and the second cavity are oppositely arranged with the dielectric layer as the center, and there are two graphene nano strips which arelocated on the first cavity and the second cavity respectively. The groove of the metal grating is partially filled with the medium so that the graphene nano strips laid on the upper portion interactwith the metal grating, the first cavity and the second cavity to jointly excite graphene surface plasma resonance, and dual-channel efficient light absorption enhancement is achieved.

Description

Technical field [0001] The invention relates to the technical fields of photoelectric detection, solar light-to-heat conversion and electromagnetic absorption, in particular to an optical structure based on graphene to realize dual-channel high-efficiency light absorption. Background technique [0002] The absorption efficiency of optoelectronic materials largely affects the performance of optoelectronic devices in the fields of optoelectronic control and photothermal conversion. These devices realize their functions by converting the absorbed light into electrical or thermal energy through optoelectronic materials. Generally speaking, the higher the absorption efficiency of the optoelectronic material, the better the overall performance of the optoelectronic device. Therefore, in order to further improve the performance of optoelectronic devices, improving the absorption efficiency of optoelectronic materials has become a hot spot for researchers. [0003] In general, most of th...

Claims

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Application Information

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IPC IPC(8): H01L31/0232H01L31/054H02S20/30F24S30/425
CPCF24S30/425H01L31/02327H01L31/054H02S20/30Y02E10/47Y02E10/52
Inventor 李传起李佳钦陆叶陈东刘志强翟莉敏覃波李沼云
Owner GUANGXI NORMAL UNIV
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