聚苯胺与氧化钨二水合物双波段电致变色复合薄膜制备及性能  

Preparation and properties of polyaniline and tungsten oxide dihydrate dual-band electrochromic composite films

作　　者：谢鸿杰 范苏娜[1] 张耀鹏[1] XIE Hongjie;FAN Suna;ZHANG Yaopeng(College of Materials Science and Engineering,State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University,Shanghai,China)

机构地区：[1]东华大学材料科学与工程学院,纤维材料改性国家重点实验室,上海

出　　处：《东华大学学报（自然科学版）》2024年第4期98-104,共7页Journal of Donghua University(Natural Science)

基　　金：上海市青年科技启明星计划(22QA1400400);2022年东方英才计划领军项目(No.152)。

摘　　要：聚苯胺(PANI)是一种导电性能优越的高分子材料,被广泛应用于电致变色或超级电容器等领域。在可见光波段(400~780nm),它表现出优异的电致变色效果,但对于近红外波段(波长大于780nm)的调控能力有限,控温能力仍有待提高。为提升PANI在近红外波段的调控能力,将氧化钨二水合物(WO_(3)·2H_(2)O)阴极变色材料与PANI复合。采用旋涂法制备WO_(3)·2H_(2)O@PANI复合薄膜,并对其进行表面形貌分析与电致变色研究。结果表明WO_(3)·2H_(2)O@PANI复合薄膜在近红外波段的电致变色性能得到显著提升,并且与ITO玻璃表面结合力更佳。因此,该复合薄膜的电化学稳定性和光学稳定性均有较大提升。Polyaniline(PANI),a polymer material exhibiting exceptional electrical conductivity,has garnered widespread application in electrochromic devices and supercapacitors.While PANI effectively demonstrates an electrochromic effect within the visible light band(400-780 nm),its adjustability in the near-infrared band(above 780 nm)remains limited.Consequently,its temperature control capabilities require enhancement.To address this,tungsten oxide dihydrate(WO3·2H2O),a cathode discoloration material,was integrated with PANI to bolster its ability to regulate light transmittance in the near-infrared band.In this study,the WO_(3)·2H_(2)O@PANI composite film was fabricated utilizing the spin-coating method,and its surface morphology and electrochromic properties were thoroughly examined.Our findings reveal that the electrochromic performance of the WO_(3)·2H_(2)O@PANI composite film has been significantly improved in the near-infrared band.Furthermore,it exhibits a stronger bonding force with the ITO glass surface,thereby enhancing both its electrochemical and optical stability.

关 键 词：双波段电致变色 聚苯胺 氧化钨二水合物 电化学稳定性 

分 类 号：TB333[一般工业技术—材料科学与工程]