Synthesis and electrochromic properties of triphenylamine containing copolymers: Effect of π-bridge on electrochemical properties
作者:Serife O. Hacioglu、Sinem Toksabay、Merve Sendur、Levent Toppare
DOI:10.1002/pola.27030
日期:2014.2.15
the effect of TPA unit and π‐bridges on electrochemical and spectroelectrochemical properties of corresponding polymers. The synthesis was carried out via Stille coupling for P1, P3, and Suzuki coupling for P2. Electrochemical and spectral results showed that P1 has an ambipolar character, in other words it is both p‐type and n‐type dopable, whereas P2 and P3 have only p‐doping property. Effect of different
Synthesis and characterization of donor–acceptor type conducting polymers containing benzotriazole acceptor and benzodithiophene donor or s-indacenodithiophene donor
作者:Di Zhang、Min Wang、Xiaoli Liu、Jinsheng Zhao
DOI:10.1039/c6ra20480e
日期:——
Two novel electrochromiccopolymers, poly(benzodithiophene-benzotriazole) (PBDBT) and poly(s-indacenodithiophene-benzotriazole) (PIDBT) were synthesized successfully through Stille coupling reactions. Both polymers were characterized by cyclic voltammetry (CV), UV-Vis spectroscopy, density functional theory (DFT), colorimetry and thermal gravimetric analysis. The band gaps of the two polymers calculated
通过Stille偶联反应成功合成了两种新型电致变色共聚物,聚苯并二噻吩-苯并三唑(PBDBT)和聚s-茚并二苯并噻吩-苯并三唑(PIDBT)。两种聚合物均通过循环伏安法(CV),紫外-可见光谱,密度泛函理论(DFT),比色法和热重分析进行了表征。根据光谱电化学数据计算的两种聚合物的带隙是1.90 eV的用于PBDBT和1.93电子伏特为PIDBT分别。当PBDBT膜被氧化并且PIDBT被氧化时,它会变成红褐色变成透明的灰色。薄膜在中性状态下会变成浅紫红色,在氧化状态下会变成透明的浅灰色。PBDBT在1500 nm处具有55.0%的光学对比度,PIDBT在1560 nm处具有60.8%的光学对比度,其相应的响应时间分别为1.49 s和1.85 s。另外,PBDBT在1500nm下的着色效率为144.70cm 2 C -1,PIDBT在1560nm下的着色效率为222.00cm 2 C -1。
Synthesis of a benzotriazole bearing alternating copolymer for organic photovoltaic applications
作者:Cagla Istanbulluoglu、Seza Göker、Gonul Hizalan、Serife O. Hacioglu、Yasemin Arslan Udum、Esra D. Yildiz、Ali Cirpan、Levent Toppare
DOI:10.1039/c5nj01026h
日期:——
Improvement of the efficiencyviabenzodithiphene based polymer in organic photovoltaics.
通过基于苯并二噻吩的聚合物在有机光伏中的应用,提高效率。
Bulk-Heterojunction Solar Cells with Benzotriazole-Based Copolymers as Electron Donors: Largely Improved Photovoltaic Parameters by Using PFN/Al Bilayer Cathode
作者:Lianjie Zhang、Chao He、Junwu Chen、Pan Yuan、Liang Huang、Chen Zhang、Wanzhu Cai、Zhitian Liu、Yong Cao
DOI:10.1021/ma102080c
日期:2010.12.14
elevated with the PFN/Albilayercathode, whereas no such improvements were found for PVCs with PPh-DTBTA as the donor. The behaviors could be attributed to the different Voc losses when using Alcathode. Using PFN/Albilayercathode could also improve short-curcuit current and fill factor for the three BTA-based copolymers. The N−N interactions between the BTA-based polymers and the PFN may modify interfacial
In the context of low cost flexible display device technology, requirements can be fulfilled with accessible multi-colored electrochromic polymers. Here, we report the synthesis and electrochromic properties of two spray processable, ambipolar, fluorescent and multi-color to transmissive electrochromic polymers. Polymers, PTBTPh and PTBTTh, have multi-colored oxidation states and easily accessible n-doped states, which allowed us to achieve transmissive films in a low working potential. Electrochemical and spectral results showed that both polymers are potential materials for electrochromic display devices.
在低成本柔性显示设备技术的背景下,使用可获得的多色电致变色聚合物可以满足要求。在此,我们报告了两种可喷雾加工的、非极性、荧光和多色透射电致变色聚合物的合成和电致变色特性。聚合物 PTBTPh 和 PTBTTh 具有多色氧化态和易于获得的 n 掺杂态,这使我们能够在低工作电位下获得透射薄膜。电化学和光谱结果表明,这两种聚合物是电致变色显示设备的潜在材料。