Synthesis of the novel thienoisoindigo-based donor-acceptor type conjugated polymers and the stable switching performance of purple-to-transparent as the electrochromic materials

2021 ◽  
pp. 106183
Author(s):  
Haoguo Yue ◽  
Xiuping Ju ◽  
Yuchang Du ◽  
Yan Zhang ◽  
Hongmei Du ◽  
...  
2017 ◽  
Vol 5 (1) ◽  
pp. 12-28 ◽  
Author(s):  
Xiaojing Lv ◽  
Weijun Li ◽  
Mi Ouyang ◽  
Yujian Zhang ◽  
Dominic S. Wright ◽  
...  

Conjugated polymers with various electron-donor (D) and -acceptor (A) structures present diverse electrochemical, optical–physical and EC properties.


2015 ◽  
Vol 6 (9) ◽  
pp. 1487-1494 ◽  
Author(s):  
Qun Ye ◽  
Wei Teng Neo ◽  
Tingting Lin ◽  
Jing Song ◽  
Hong Yan ◽  
...  

Novel solution-processable pyrrolophthalazine dione-containing electrochromic conjugated polymers with high optical contrast, high coloration efficiency, and good long-term stability were reported.


2019 ◽  
Vol 7 (25) ◽  
pp. 7618-7626 ◽  
Author(s):  
Kaiqiang Huang ◽  
Xue Zhao ◽  
Yuchang Du ◽  
Sanghyo Kim ◽  
Xiaohong Wang ◽  
...  

Six donor–acceptor (D–A) conjugated polymers, P1–P6, based on the novel electron acceptors bis-isoindigo (BIID) and bis-azaisoindigo (BAID), were designed and synthesized for solution-processed organic field-effect transistors.


Polymers ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1683 ◽  
Author(s):  
Zhifeng Deng ◽  
Taotao Ai ◽  
Rui Li ◽  
Wei Yuan ◽  
Kaili Zhang ◽  
...  

π-Conjugated organic donor–acceptor (D–A) type polymers are widely developed and used in electronic device. Among which, diketopyrrolopyrrole (DPP)-based polymers have received the most attention due to their high performances. The novel chromophores named 1,3,4,6-tetraarylpyrrolo[3,2-b]pyrrole-2,5-dione (isoDPP), benzodipyrrolidone (BDP) and naphthodipyrrolidone (NDP) are resemble DPP in chemical structure. IsoDPP is an isomer of DPP, with the switching position of carbonyl and amide units. The cores of BDP and NDP are tri- and tetracyclic, whereas isoDPP is bicyclic. π-Conjugation extension could result polymers with distinct optical, electrochemical and device performance. It is expected that the polymers containing these high-performance electron-deficient pigments are potential in the electronic device applications, and have the potential to be better than the DPP-based ones. IsoDPP, BDP, and NDP based polymers are synthesized since 2011, and have not receive desirable attention. In this work, the synthesis, properties (optical and electrochemical characteristics), electronic device as well as their relationship depending on core-extension or structure subtle optimization have been reviewed. The final goal is to outline a theoretical scaffold for the design the D–A type conjugated polymers, which is potential for high-performance electronic devices.


2021 ◽  
Author(s):  
Bowen Ding ◽  
Gunwoo Kim ◽  
Youngseok Kim ◽  
Flurin D. Eisner ◽  
Edgar Gutiérrez-Fernández ◽  
...  

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1098
Author(s):  
Agata Blacha-Grzechnik

For many years, the research on conjugated polymers (CPs) has been mainly focused on their application in organic electronics. Recent works, however, show that due to the unique optical and photophysical properties of CPs, such as high absorption in UV–Vis or even near-infrared (NIR) region and efficient intra-/intermolecular energy transfer, which can be relatively easily optimized, CPs can be considered as an effective light-activated source of versatile and highly reactive singlet oxygen for medical or catalytic use. The aim of this short review is to present the novel possibilities that lie dormant in those exceptional polymers with the extended system of π-conjugated bonds.


Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2486
Author(s):  
Dexun Xie ◽  
Jing Xiao ◽  
Quanwei Li ◽  
Tongchao Liu ◽  
Jinjia Xu ◽  
...  

Conjugated polymers with narrower bandgaps usually induce higher carrier mobility, which is vital for the improved thermoelectric performance of polymeric materials. Herein, two indacenodithiophene (IDT) based donor–acceptor (D-A) conjugated polymers (PIDT-BBT and PIDTT-BBT) were designed and synthesized, both of which exhibited low-bandgaps. PIDTT-BBT showed a more planar backbone and carrier mobility that was two orders of magnitude higher (2.74 × 10−2 cm2V−1s−1) than that of PIDT-BBT (4.52 × 10−4 cm2V−1s−1). Both exhibited excellent thermoelectric performance after doping with 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane, where PIDTT-BBT exhibited a larger conductivity (0.181 S cm−1) and a higher power factor (1.861 μW m−1 K−2) due to its higher carrier mobility. The maximum power factor of PIDTT-BBT reached 4.04 μW m−1 K−2 at 382 K. It is believed that conjugated polymers with a low bandgap are promising in the field of organic thermoelectric materials.


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