深铬移
噻吩
二甲胺
聚合物
共轭体系
材料科学
热稳定性
带隙
有机电子学
亚甲基桥
咔唑
斯托克斯位移
高分子化学
光化学
化学
有机化学
光电子学
荧光
晶体管
电压
复合材料
发光
物理
量子力学
作者
Dilara Gunturkun,Recep Isci,Berkay Sütay,Leszek A. Majewski,Sheida Faraji,Turan Ozturk
标识
DOI:10.1016/j.eurpolymj.2022.111167
摘要
Thienothiophene (TT) is one of the most impressive organic cores, and has gained significant attention in the organic polymeric materials in recent years. Possessing cyano (CN), carboxylic acid (COOH) and dimethylamine (N(CH3)2) substituted thieno[3,4-b]thiophene (TT), π-extended conjugated three novel polymers (P1-P3) with 3-hexylthiophene were successfully synthesized by the Suzuki coupling. All the polymers were found to be well soluble owing to the side chains. Their optical and electrochemical properties were investigated by experimental and computational studies. Moreover, the photophysical characterization of the novel polymers demonstrated a significant mega Stokes shift, reaching 138 nm with a bathochromic shift, and a changing electronic band gap between 1.91 and 2.33 eV as well as good thermal stability of degradation temperature around 320 °C. Also, their F− anion-recognition abilities have been investigated with selectivity of different fluoride concentration for UV and emission titration spectra. Memristive switching properties were examined by using synthesized polymers as an active layer in memory devices. The highest ON/OFF ratio of the memory devices were recorded to be 106 with good stability, which makes them suitable for electronic applications.
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