无机材料学报 ›› 2021, Vol. 36 ›› Issue (5): 451-460.DOI: 10.15541/jim20200465

所属专题: 电致变色材料与器件 【虚拟专辑】电致变色与热致变色材料 电致变色专栏2021

• 专栏:电致变色材料与器件(特邀编辑:王金敏,刁训刚) • 上一篇    下一篇

无机电致变色材料反射特性研究进展

张翔1, 李文杰2(), 王乐滨1, 陈曦1, 赵九蓬2, 李垚1()   

  1. 1.复合材料与结构研究所, 哈尔滨工业大学, 哈尔滨 150001
    2.化工与化学学院, 哈尔滨工业大学, 哈尔滨 150001
  • 收稿日期:2020-08-14 修回日期:2020-09-22 出版日期:2021-05-20 网络出版日期:2021-04-19
  • 通讯作者: 李 垚, 教授. E-mail: yaoli@hit.edu.cn
  • 作者简介:张 翔(1986-), 男, 讲师. E-mail:zhangxhit@hit.edu.cn
  • 基金资助:
    国家自然科学基金(52002097)

Reflective Property of Inorganic Electrochromic Materials

ZHANG Xiang1, LI Wenjie2(), WANG Lebin1, CHEN Xi1, ZHAO Jiupeng2, LI Yao1()   

  1. 1. Center for Composite Materials and Structure, Harbin Institute of Technology, Harbin 150001, China
    2. School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
  • Received:2020-08-14 Revised:2020-09-22 Published:2021-05-20 Online:2021-04-19
  • Contact: LI Yao, professor.E-mail: yaoli@hit.edu.cn
  • About author:ZHANG Xiang(1986-), male, lecturer. E-mail:zhangxhit@hit.edu.cn
  • Supported by:
    National Natural Science Foundation of China(52002097)

摘要:

电致变色材料是一种在外加电场下, 颜色可以发生可逆转变的材料。电致变色材料可调的光谱范围广, 可以实现从可见到中远红外的宽波段调控, 在智能窗、显示、防炫目后视镜、智能热控和伪装等领域具有广泛应用前景。目前对无机电致变色材料的研究大多是关于透过特性的研究, 对于反射特性的研究较少, 这主要是因为无机变色材料大多颜色单一, 且不如有机变色材料容易设计。近年来, 通过一些特殊的制备方法和结构设计, 无机变色材料反射特性的研究逐渐受到科研人员的重视。本文从无机电致变色材料的反射特性出发, 详细介绍了无机电致变色在可见-近红外到中远红外波段的反射光谱调控方法和原理, 综述了最新研究进展。在可见波段, 反射特性调控主要通过制备五氧化二钒及其掺杂化合物、一维光子晶体微结构、法布里-珀罗纳米谐振腔结构和局域表面等离子共振等方式实现。在红外波段, 主要利用氧化钨等材料的分子振动吸收和德鲁德自由电子气体理论等理论设计制备红外反射型电致变色器件。最后, 对未来无机电致变色材料反射调节的实际应用进行了展望。

关键词: 电致变色, 反射, 发射率, 无机材料, 多色, 综述

Abstract:

Optical property, such as color, transmittance, reflectance and emissivity, of electrochromic materials can be changed reversibly under low applied voltages. Electrochromic materials have a wide range of regulatable spectrum, which can realize the broadband control from the visible to mid-far-infrared. Electrochromic materials show a wide application prospect in the fields of intelligent window, display, anti-glare rearview mirror, intelligent thermal control, and camouflage. At present, most of researches on inorganic electrochromic materials focus mainly on transmission characteristics, but less on reflection characteristics. This is mainly because most inorganic electrochromic materials have single color and are not as easy to design as organic electrochromic materials. In recent years, through special preparation and structural design, the research on reflective properties of inorganic electrochromic materials has gradually attracted researchers’ attention. Based on reflection characteristics of inorganic electrochromic materials, methods and principles of regulating the reflectance spectrum in the visible near infrared to mid-far-infrared bands are introduced, and the latest research progress is summarized. Within the visible band, reflectance spectrum control is mainly achieved by vanadium pentoxide (V2O5) and V2O5 doping, microstructure of one dimensional photonic crystal, Fabry Perot nanocavity structure and localized surface plasmon resonance (LSPR). Within the mid-to-far infrared band, electrochromic devices (ECDs) based on the molecular vibration absorption of tungsten oxide (WO3) or other electrochromic materials and related theory are designed and fabricated to regulate reflectance spectra. Finally, the practical application of inorganic electrochromic materials in future is prospected.

Key words: electrochromic, reflectance, emittance, inorganic material, multicolor, review

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