Black-to-transmissive polymer films via electrochemical copolymerization with high-performance electrochromic and supercapacitor bifunction

被引：37

作者：

Tang, Yixiao ^{[1
]}

Zhang, Ling ^{[1
]}

Yan, Shuanma ^{[1
,2
,3
]}

Kuai, Yu ^{[1
]}

Fu, Haichang ^{[1
]}

Li, Weijun ^{[1
]}

Ouyang, Mi ^{[1
]}

Zhang, Cheng ^{[1
]}

机构：

[1] Zhejiang Univ Technol, Coll Chem Engn, State Key Lab Breeding Base Green Chem Synth Techn, Hangzhou 310014, Peoples R China

[2] Nanjing Tech Univ, Key Lab Flexible Elect, Nanjing, Peoples R China

[3] Nanjing Tech Univ, Inst Adv Mat, Nanjing, Peoples R China

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2022年 / 245卷

基金：

中国国家自然科学基金;

关键词：

Ternary random electro-copolymerization; Black-to-transmissive; Electrochromic and supercapacitor bifunction; COLORS; STATE; OPTIMIZATION; GREEN; RED;

D O I：

10.1016/j.solmat.2022.111857

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The black-to-transmissive electrochromic polymer has significant value with practical applications. Integration of electrochromic and supercapacitor bifunctional materials can indicate its capacitor level by visual color change in real-time. In this paper, based on three EDOT derivative monomers were associated to phenan-throcarbazole/benzotriazole/benzothiadiazole, M1, M2 and M3, a novel ternary random copolymer film was successfully prepared by electrochemical copolymerization. Since the corresponding homopolymers of three monomers are red, green and blue in the neutral state respectively, and their oxidation states are all transparent, therefore the obtained ternary random copolymer films show the black-to-transmissive electrochromic behavior. The copolymer film pCo-2 was prepared via electrochemical copolymerization with suitable monomers feed ratio (1: 1.5: 1 of M1: M2: M3). Benefit from ternary random electrochemical copolymerization, the pCo-2 copolymer displays excellent electrochromic-supercapacitor properties among the similar bifunctional materials, with fast response time, high optical contrast, good cycling stability and large area (volume) specific capacitance. The electrochromic supercapacitor device based on pCo-2//PEDOT can make an LCD run continuously. This work provides an available general approach to realizing black-to-transmissive electrochromism towards electrochromic-supercapacitor bifunctional applications.

引用

页数：10

共 46 条

[1] Spray-Processable Blue-to-Highly Transmissive Switching Polymer Electrochromes via the Donor-Acceptor Approach [J].