基于VO2热致相变材料的双波段智能窗、薄膜及制备方法

By designing a core-shell structure on the VO2 thin film and installing a detachable high-reflectivity substrate, dual-band modulation of sunlight and infrared bands in the VO2 smart window was achieved, solving the problems of the VO2 thin film's modulation capability and single control band, and improving energy-saving effect.

CN119493294BActive Publication Date: 2026-07-17UNIV OF ELECTRONICS SCI & TECH OF CHINA +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Filing Date
2024-10-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing VO2 thin-film smart windows have limitations in solar radiation modulation capabilities and infrared radiation modulation performance, making them unable to adapt to changes in different climates and seasons, resulting in unsatisfactory energy-saving effects.

Method used

By employing a photonic crystal thin film based on the VO2 core-shell structure and mounting a detachable high-reflectivity substrate on the VO2 thin film, dual-band adjustable performance in the solar and infrared bands is achieved, and intelligent control is achieved by utilizing the thermally induced phase transition characteristics of VO2.

Benefits of technology

It significantly improves the solar light modulation capability and infrared radiation modulation performance of the VO2 smart window, adapts to the energy-saving needs of different climates and seasons, and realizes a dual-band adjustable smart thermal control window device.

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Abstract

本发明提供一种基于VO2热致相变材料的双波段智能窗、薄膜及制备方法,双波段智能窗,从上至下依次为X@VO2核壳粒子、可见光至红外光透明基底和可见光至红外光反射基底;X@VO2核壳粒子是内部为可见光至红外光透明核芯X、外部为掺杂VO2壳层的核壳结构颗粒材料,X@VO2核壳粒子平铺在可见光至红外光透明基底上。X@VO2核壳粒子、可见光至红外光透明基底构成光子晶体薄膜,光子晶体薄膜安装可拆卸的可见光至红外光反射基底。与现有技术相比,本发明(1)提升了传统VO2智能窗的太阳光调制能力;(2)获得了太阳光与红外双波段可调的智能窗;(3)可获得不同相变温度的智能窗器件,以适应不同地区建筑物的节能调控需求。
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