摘要
借助Layer-by-Layer自组装技术分别构筑了钒修饰的钨酸盐K_7P_2W_(17)VO_(62)·18H_2O(P_2W_(17)V)、聚乙烯亚胺的复合膜[PEI/P_2W_(17)V]_(20),K_7P_2W_(17)VO_(62)·18H_2O(P_2W_(17)V)、聚乙烯亚胺、刚果红(Congo red,CR)复合膜[PEI/P_2W_(17)V/PEI/刚果红]_(20)。紫外-可见吸收光谱监测显示两种复合膜的构筑是成功的,均实现了复合膜均一稳定的增长。电化学工作站和紫外可见吸收光谱联机对复合膜的电致变色性能研究显示:染料刚果红的加入,不但丰富了多酸电致变色材料的颜色种类,实现了由红色到浅紫色的可逆变化,更使光反差提高9.36%,复合膜的变色能力得到了很大的增强,实现了复合膜可调颜色的电致变色,有望在变色薄膜领域得到新的应用。
Two electrochromic films[PEI/P 2W 17 V/]20 and[PEI/P 2W 17 V/PEI/CR]20 based on K 7P 2W 17 VO 62·18H 2O(P 2W 17 V),Congo red and Polyetherimide were prepared by layer-by-layer(LbL)method.UV-visible spectra displayed that the growth for each deposition cycles were uniform.The electrochromic properties of the films were characterized via chronoamperometric and spectroelectrochemistry.The composite film with dye shows that adjustable colors and undergoes transitions from red to pale purple,and light contrast increase 9.36%.It is expected to get new applications in the field of color film.
作者
杨艳艳
冯素洋
谭佳宁
曲小姝
祁岳
于晓洋
YANG Yan-yan;FENG Su-yang;TAN Jia-ning;QU Xiao-shu;QI Yue;YU Xiao-yang(Jilin Institute of Chemical Technology,Jilin 132022,China)
出处
《化学研究与应用》
CAS
CSCD
北大核心
2019年第4期598-603,共6页
Chemical Research and Application
基金
国家自然科学基金项目(21605056)
吉林省科技厅自然科学基金项目(20180101191JC)
吉林省教育厅"十三五"科学技术项目(JJKH20180548KJ)
吉林市科技创新发展计划项目(201750215)资助
关键词
电致变色
多酸
刚果红
LbL自组装
electrochromic
polyoxometalate
congo red
layer-by-layer
