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Flexible transparent voltage-controlled film capacitor and preparation method thereof

A film capacitor and transparent technology, applied in the direction of variable voltage capacitors, etc., can solve the problems of high microwave loss of devices, failure to realize full transparency and flexibility of devices, etc., and achieve low dielectric loss, wide application, and high tuning rate high effect

Pending Publication Date: 2018-10-19
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current technology has not been able to realize the full transparency and flexibility of the device, and the microwave loss of the device is relatively large

Method used

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  • Flexible transparent voltage-controlled film capacitor and preparation method thereof
  • Flexible transparent voltage-controlled film capacitor and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0023] A kind of flexible transparent voltage control film capacitor of the present embodiment, see figure 1 As shown, it includes a transparent flexible substrate 1 , a bottom electrode 2 of a nano-silver fiber network, a bismuth-magnesium niobate dielectric adjustable film 3 and a top electrode 4 of a nano-silver fiber network.

[0024] In this embodiment, the transparent flexible substrate 1 is a PET sheet.

[0025] In this embodiment, the structure of the nano-silver fiber network bottom electrode 2 is shown in figure 2 As shown, the diameter of the nano silver fiber is 275nm.

[0026] In this embodiment, the dielectric adjustable film 3 of bismuth magnesium niobate has a thickness of 300nm, and the chemical formula of the bismuth magnesium niobate is Bi 1.5 MgNb 1.5 o 7 .

[0027] In this embodiment, the structure of the top electrode 4 of the nano-silver fiber network is shown in figure 2 As shown, the diameter of the nano silver fiber is 275nm.

[0028] A prepa...

Embodiment 2

[0034] A kind of flexible transparent voltage control film capacitor of the present embodiment, see figure 1 As shown, it includes a transparent flexible substrate 1 , a bottom electrode 2 of a nano-silver fiber network, a bismuth-magnesium niobate dielectric adjustable film 3 and a top electrode 4 of a nano-silver fiber network.

[0035] In this embodiment, the transparent flexible substrate 1 is a PI sheet.

[0036] In this embodiment, the structure of the nano-silver fiber network bottom electrode 2 is shown in figure 2 As shown, the diameter of the nano silver fiber is 400nm.

[0037] In this embodiment, the dielectric adjustable film 3 of bismuth magnesium niobate has a thickness of 200nm, and the chemical formula of the bismuth magnesium niobate is Bi 1.5 MgNb 1.5 o 7 .

[0038] In this embodiment, the structure of the top electrode 4 of the nano-silver fiber network is shown in figure 2 As shown, the diameter of the nano silver fiber is 400nm.

[0039] A prepar...

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Abstract

The invention discloses a flexible transparent voltage-controlled film capacitor and a preparation method thereof. The film capacitor comprises a substrate, a bottom electrode, a dielectric tunable film and a top electrode. A function of adjusting the capacitance is achieved by applying a voltage signal through the top electrode and the bottom electrode to control the dielectric constant of the dielectric tunable film. Both the bottom electrode and the top electrode are transparent nanosilver fiber network electrodes. The method for preparing the film capacitor comprises: firstly preparing a transparent nanosilver fiber network on the substrate as a bottom electrode; secondly preparing the dielectric tunable film on the bottom electrode by a pulsed laser deposition method; and preparing atransparent nanosilver network on the dielectric tunable film as the top electrode. The film capacitor produced by the invention is large in dielectric tuning rate, low in dielectric loss, wide in transmission spectral range, flexible and bendable.

Description

technical field [0001] The invention belongs to the field of electronic information materials and components, in particular to a flexible transparent voltage-controlled film capacitor and a preparation method thereof. Background technique [0002] The research of transparent electronic devices and transparent electronic equipment has attracted the attention of many scientific researchers and technology companies. Some electronic giants such as Samsung, Apple, and Sony have invested huge manpower and material resources in the research and development of transparent electronic products in order to occupy the future technology Highlands of development. At present, transparent electronic products have been widely used in solar cells, touch screens, LCD displays, etc. The technology and industry generally believe that communication electronic products are the next important breakthrough in the development of transparent electronics. The current research on transparent electronic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G7/06
CPCH01G7/06
Inventor 宁平凡梁立君李玉强牛萍娟刘宏伟张建新
Owner TIANJIN POLYTECHNIC UNIV
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