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Graphene antenna and preparation method and application thereof

A graphene and antenna technology, applied in antennas, resonant antennas, antenna components, etc., can solve the problems of inability to conform to three-dimensional objects, graphene antennas can only be printed on flat substrates, etc., and achieve the effect of expanding applications

Inactive Publication Date: 2019-08-23
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in this field, the present invention provides a method for preparing a graphene antenna, and on this basis, an RFID tag is produced, aiming at solving the problem that the current graphene antenna can only be printed on a flat substrate and cannot be integrated with a three-dimensional object. conformal problem

Method used

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  • Graphene antenna and preparation method and application thereof
  • Graphene antenna and preparation method and application thereof
  • Graphene antenna and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0042] The pattern of the graphene antenna is a graphene printing layer, and the graphene printing layer is transferred to the target substrate together with the water transfer film. The specific steps include:

[0043] Step 01: Print the graphene conductive ink on the water transfer paper by screen printing to form a graphene printing layer. The printing speed is 5-100 mm / s. The graphene printing layer is in the shape of the designed antenna ;

[0044] Step 02: Use thermal curing to dry and cure the graphene printing layer, the curing temperature is 50-120°C, and the time is 10-120 minutes;

[0045] Step 03: Soak the structure obtained in step 02 in deionized water for 1 to 60 minutes, so that the graphene printing layer is detached from the water transfer paper substrate, and transferred to the target substrate, and then dried naturally.

[0046] In this embodiment, the printing technology of screen printing is adopted to prepare the graphene printing layer, but it is not l...

Embodiment 2

[0052] The pattern of the graphene antenna is formed by micro-nano processing of the graphene printing layer by micro-nano processing technology, and the patterned graphene printing layer is transferred to the substrate together with the water transfer film, which specifically includes the following steps:

[0053] Step 01: Print the graphene conductive ink on the water transfer paper by scraping to form a graphene printing layer, and the printing speed is 5-100 mm / s;

[0054] Step 02: Dry and solidify the graphene printing layer by thermal curing, the curing temperature is 50-120 degrees Celsius, and the curing time is 10-120 minutes;

[0055] Step 03: Use laser engraving technology to pattern the graphene printing layer, and etch out the designed antenna pattern;

[0056] Step 04: Soak the structure obtained in step 03 in deionized water for 1 to 60 minutes, so that the graphene printing layer is detached from the water transfer paper substrate, and transferred to the desire...

Embodiment 3

[0063] The pattern of the graphene antenna is formed by micro-nano processing of the graphene printing layer by micro-nano processing technology. The graphene printing layer and the water transfer film are transferred to the target substrate together to pattern the antenna, including the following steps:

[0064] Step 01: Print the graphene conductive ink on the water transfer paper by scraping to form a graphene printing layer, and the printing speed is 5-100 mm / s;

[0065] Step 02: Dry and solidify the graphene printing layer by thermal curing, the curing temperature is 50-120 degrees Celsius, and the curing time is 10-120 minutes;

[0066] Step 03: Soak the structure obtained in Step 02 in deionized water for 1 to 60 minutes, so that the graphene printing layer is detached from the water transfer paper substrate, and transferred to the desired substrate, and then dried naturally;

[0067] Step 04: Use laser engraving technology to pattern the graphene printing layer transfe...

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Abstract

The invention discloses a graphene antenna and a preparation method thereof, and the preparation method comprises the following steps: printing graphene conductive ink on water transfer paper, forminga graphene printing layer, putting the graphene printing layer into water, separating the graphene printing layer from the water transfer paper, and transferring the graphene printing layer to a target substrate. The process for preparing the graphene antenna has the low-temperature, energy-saving and environment-friendly characteristics, and can be applied to industrial production in combinationwith the large-scale production technology such as a roll-to-roll technology. The prepared graphene antenna pattern can be subjected to personalized design to meet the requirements of different use scenes. The invention also discloses an RFID tag which is obtained by electrically connecting the graphene antenna and an RFID chip. The prepared graphene antenna can be transferred to any target substrate, including an uneven three-dimensional substrate, and is perfectly conformal with the substrate, so that the application of an RFID tag in the field of Internet of Things is expanded.

Description

technical field [0001] The invention relates to the technical field of printed electronics, in particular to a graphene antenna and its preparation method and application. Background technique [0002] In recent years, printed electronics has attracted more and more researchers' interest. Printed electronics has a wide range of applications, such as antennas, transparent electrodes, solar cells, thin-film transistors, light-emitting devices, etc. [0003] The most commonly used conductive inks for printed electronics today are metal-based conductive inks. Metallic conductive inks have very high electrical conductivity and very good mechanical properties. But there are also many very prominent disadvantages, for example, although silver has a very high electrical conductivity, its price is very high. Although aluminum and copper are cheaper than silver, they are easily oxidized in air to form non-conductive oxides. Moreover, metal conductive ink usually requires a curing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/22H01Q1/36H01Q1/38H01Q9/20G06K19/077
CPCG06K19/07773H01Q1/2225H01Q1/368H01Q1/38H01Q9/20
Inventor 徐明生王维佳
Owner ZHEJIANG UNIV
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