Synthesis and characterization of donor–acceptor type conducting polymers containing benzotriazole acceptor and benzodithiophene donor or s-indacenodithiophene donor

RSC Advances ◽  
2016 ◽  
Vol 6 (96) ◽  
pp. 94014-94023 ◽  
Author(s):  
Di Zhang ◽  
Min Wang ◽  
Xiaoli Liu ◽  
Jinsheng Zhao

Two D–A type copolymers were synthesized and characterized by a series of methods. Both copolymers showed high optical contrasts, fast response time and high coloration efficiency. In summary, they could be candidates for electrochromic applications.

RSC Advances ◽  
2018 ◽  
Vol 8 (41) ◽  
pp. 23119-23129 ◽  
Author(s):  
Xinfeng Cheng ◽  
Xiuping Ju ◽  
Hongmei Du ◽  
Yan Zhang ◽  
Jinsheng Zhao ◽  
...  

Three novel D–A type conjugated copolymers were prepared, illustrating excellent electrochromic properties, such as desirable color switches, high optical contrasts, fast response time, and high color efficiency.


Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 874
Author(s):  
Soyoung Bae ◽  
Youngno Kim ◽  
Jeong Min Kim ◽  
Jung Hyun Kim

MXene, a 2D material, is used as a filler to manufacture polymer electrolytes with high ionic conductivity because of its unique sheet shape, large specific surface area and high aspect ratio. Because MXene has numerous -OH groups on its surface, it can cause dehydration and condensation reactions with poly(4-styrenesulfonic acid) (PSSA) and consequently create pathways for the conduction of cations. The movement of Grotthuss-type hydrogen ions along the cation-conduction pathway is promoted and a high ionic conductivity can be obtained. In addition, when electrolytes composed of a conventional acid or metal salt alone is applied to an electrochromic device (ECD), it does not bring out fast response time, high coloration efficiency and transmittance contrast simultaneously. Therefore, dual-cation electrolytes are designed for high-performance ECDs. Bis(trifluoromethylsulfonyl)amine lithium salt (LiTFSI) was used as a source of lithium ions and PSSA crosslinked with MXene was used as a source of protons. Dual-Cation electrolytes crosslinked with MXene was applied to an indium tin oxide-free, all-solution-processable ECD. The effect of applying the electrolyte to the device was verified in terms of response time, coloration efficiency and transmittance contrast. The ECD with a size of 5 × 5 cm2 showed a high transmittance contrast of 66.7%, fast response time (8 s/15 s) and high coloration efficiency of 340.6 cm2/C.


2015 ◽  
Vol 3 (43) ◽  
pp. 11318-11325 ◽  
Author(s):  
Guangming Nie ◽  
Ling Wang ◽  
Changlong Liu

An ECD based on electrochromic poly(1H-benzo[g]indole) was fabricated. The color of this ECD can switch between green and navy blue with good optical contrast, high coloration efficiency, fast response time, better optical memory and long-term stability.


2021 ◽  
Author(s):  
Juhee Kim ◽  
Chan So ◽  
Mingyun Kang ◽  
Kyu Min Sim ◽  
Bogyu Lim ◽  
...  

A newly synthesized regioregular donor polymer is used in photomultiplication-type organic photodiodes (PM-OPDs), and its regioregularity enables face-on orientation with a low trap density, leading to a high gain and fast response time in PM-OPDs.


2016 ◽  
Vol 40 (3) ◽  
pp. 2178-2188 ◽  
Author(s):  
Shuang Chen ◽  
Di Zhang ◽  
Min Wang ◽  
Lingqian Kong ◽  
Jinsheng Zhao

Three D–A type polymers were prepared, which showed desirable color switches, high optical contrasts, fast response time, and high color efficiency.


2011 ◽  
Author(s):  
M. G. Murali ◽  
D. Udayakumar ◽  
P. Predeep ◽  
Mrinal Thakur ◽  
M. K. Ravi Varma

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