Colorless to black electrochromic devices using subtractive color mixing of two electrochromes: A conjugated polymer with a small organic molecule

被引:19
|
作者
Li, Mengfang [1 ]
Yassin, Omer A. [2 ]
Baczkowski, Matthew L. [1 ]
Zhang, Xiaozheng [1 ]
Daniels, Robert [2 ]
Deshmukh, Ajinkya A. [1 ]
Zhu, Yumin [2 ]
Otley, Michael T. [2 ]
Sotzing, Gregory A. [1 ,2 ]
机构
[1] Univ Connecticut, Polymer Program, 97 N Eagleville Rd, Storrs, CT 06269 USA
[2] Univ Connecticut, Dept Chem, 55 N Eagleville Rd, Storrs, CT 06269 USA
关键词
POLY(3,4-PROPYLENEDIOXYTHIOPHENE); PERFORMANCE; CONTRAST; RATIOS;
D O I
10.1016/j.orgel.2020.105748
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Herein, we present a facile method for color-tuning an electrochromic device that switched between two neutral colors through simple color mixing of a conjugated polymer, poly(2,2-dimethyl-3,4-propylenedioxythiophene) and an electrochromic small molecule aromatic diester, diethyl-4,4′-biphenyldicarboxylate. The resulting device had a photopic contrast of ca. 57% across the visible spectrum. In addition, the device exhibited color uniformity and stability over 2,000 switches. Using these mixed coloring materials, a large area electrochromic device of 140 cm2 was fabricated, exceeding the size of ophthalmic lenses and small displays. © 2020
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页数:5
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