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An infrared control bionic laminated device

A technology of lamination and device, applied in the field of infrared regulation, can solve the problems of no natural leaf tissue structure and composition characteristics, different spectra of the same color, differences in the real characteristics of leaves, etc., so as to improve infrared transmission performance and enhance hyperspectral bionic properties. Effect

Active Publication Date: 2021-12-03
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the currently reported electrovariable infrared emissivity devices can display infrared characteristics similar to natural vegetation environments, they cannot match the fine spectrum of leaves in hyperspectral remote sensing detection, resulting in the phenomenon of "same color but different spectrum".
The root cause of this phenomenon is that traditional electrovariable infrared emissivity devices do not have the tissue structure and composition characteristics of natural leaves, which makes the fine spectrum displayed by them very different from the real characteristics of leaves. Therefore, it is necessary to solve this problem Difficulties The structure and composition of electrovariable infrared emissivity devices must be completely reformed from the design concept of biomimetic materials

Method used

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  • An infrared control bionic laminated device
  • An infrared control bionic laminated device
  • An infrared control bionic laminated device

Examples

Experimental program
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Effect test

Embodiment 1

[0023] An infrared control bionic laminated device, the preparation process is as follows:

[0024] Step 1. Preparation of the top bionic electrode:

[0025] 1.1 Select polyvinylpyrrolidone as the electrode structure template, dissolve polyvinylpyrrolidone (Mr=1300000) in absolute ethanol, and prepare a precursor solution with uniform viscosity; transfer the prepared precursor solution to the spinning tube, and use electrospinning The electrode template was obtained by the method, the spinneret with a diameter of 0.25mm, the airflow pressure of 0.26MPa, the air duct width of 0.4mm, the air duct angle of 60°, and the receiving distance of 20mm were selected, and the spinning voltage (8kV, 10kV, 12kV) was adjusted to change the polymer Whip during the fiber forming process to obtain nanofibers with different diameters, and collect the polymer fibers into a copper frame vessel, so as to realize the preparation of nanofibers with diameters of 600nm, 1300nm and 2400nm in the same p...

Embodiment 2

[0035] An infrared control bionic laminated device, the preparation process is as follows:

[0036] Step 1. Preparation of the top-layer biomimetic electrode: select metal gold as the electrode material, first prepare a gold film with a thickness of 80 μm on the PET substrate by magnetron sputtering, and then spin-coat a uniform layer of gold film on the surface of the gold film to be etched. Photoresist, after soft baking, a layer of photoresist film can be formed on the surface, and then through the process of ultraviolet exposure, development, shaping and hardening, the pattern with vein structure on the mask plate can be accurately transferred to the photolithography of the metal surface Finally, use inductively coupled plasma etching method to etch and remove the part not covered by the photoresist on the gold film. After removing the photoresist, the top biomimetic electrode with leaf vein structure is obtained;

[0037] Step 2. Preparation of the electrovariable infrare...

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Abstract

An infrared control bionic laminated device belongs to the technical field of infrared control. The infrared control bionic laminated device is obtained by stacking four functional layers, which are the bottom electrode, the ion transport layer, the electrovariable infrared emissivity layer and the top bionic electrode from bottom to top, wherein the top bionic electrode is a leaf vein A metal conductive network with a structure, the metal conductive network includes a multi-level branch structure composed of metal conductive nanowires with different diameters. The invention creatively introduces the bionic leaf structure into the infrared control device, and the top bionic electrode is a metal conductive network with a vein structure, which greatly improves the infrared transmission performance of the electrode, and makes the device structure present similar spectral characteristics to the leaves; In the variable infrared emissivity layer, by introducing molecules with chlorophyll spectral characteristics as intercalation molecules into the graphene sheets, while further improving the infrared control performance of the device, the spectral characteristics of the device are closer to real leaves.

Description

technical field [0001] The invention belongs to the technical field of infrared control, and in particular relates to an infrared control bionic laminated device. Background technique [0002] Electrovariable infrared emissivity devices have attracted extensive attention in the fields of aerospace and military reconnaissance because of their adjustable and controllable infrared emissivity. The principle is that under the action of an external electric field, the physical properties of the electrovariable infrared emissivity material will undergo stable and reversible changes with the implantation or extraction of ions, thereby realizing the regulation of the infrared emissivity of the device. At present, electrovariable infrared emissivity devices mainly use metal oxides or conductive polymers as active materials to regulate the infrared emissivity of devices, but these materials are often weak in mechanical strength, poor in stability and difficult to mass-produce. Graphen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/52H01L51/54H01L51/56
CPCH10K85/60H10K50/125H10K50/805H10K2102/00H10K71/00
Inventor 贾春阳王力恒翁小龙
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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