dialkoxybithiazole:用于头对头聚合物半导体的新构件
Xugang Guo1, Jordan Quinn, Zhihua Chen
1Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.
Journal of the American Chemical Society
|January 19, 2013
概括
使用BTzOR构件的头对头连接的新聚合物,在有机电子中实现了高性能. 这些材料表现出先进的有机薄膜晶体管的增强晶体性和流动性.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 聚合物化学 聚合物化学
背景情况:
- 可溶液加工的聚合物半导体对于低成本的有机电子产品至关重要.
- 基链功能化提高了溶解性和载体流动性.
- 以前,由于 π-π 重叠不良和移动性低,避免了头对头 (HH) 连接.
研究的目的:
- 为了合成一种新的构建块,4,4'-dialkoxy-5,5'-bithiazole (BTzOR),用于HH链接.
- 将BTzOR纳入高性能有机薄膜晶体管 (OTFT) 的聚合物中.
- 调查BTzOR结构对聚合物特性和设备性能的影响.
主要方法:
- 合成了BTzOR的构建块.
- 包括BTzOR单位的聚合物.
- 有机薄膜晶体管 (OTFT) 的制造和表征.
主要成果:
- 通过BTzOR,可以实现具有增强的π-结合和结晶性的HH宏分子架构.
- BTzOR聚合物表现出低带隙 (1.40-1.63 eV) 和高孔流动性 (0.06-0.25 cm2/Vs).
- 与BTOR类似物相比,BTzOR聚合物显示出更好的I(on):I(off) 比率和环境稳定性.
结论:
- BTzOR是高性能聚合物半导体的有希望的构建块,克服了HH连接的局限性.
- 提亚的几何和电子特性增强了π-π重叠,结晶性和电荷传输.
- 合成途径可以适应其他基于比特亚的材料,从而推进有机电子.
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