纳夫他林尼迪卡尔博西米德-与基于纳夫他林尼迪卡尔博西米德的共聚物. 在底门N通道有机晶体管中的合成和半导体性能
Zhihua Chen1, Yan Zheng, He Yan
1Polyera Corporation, 8045 Lamon Avenue, Skokie, Illinois 60077, USA.
Journal of the American Chemical Society
|December 19, 2008
概括
为有机薄膜晶体管 (TFT) 合成了两种新型聚合物半导体,P(NDI2OD-T2) 和P(PDI2OD-T2). P(NDI2OD-T2) 在环境条件下表现出优越的电子流动性和稳定性,表现优于P(PDI2OD-T2).
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:
- 有机薄膜晶体管 (OTFT) 对于灵活的电子产品至关重要.
- 开发高性能n通道有机半导体仍然是一个挑战.
- 烯和烯-二碳胺 (PDI和NDI) 衍生物是有前途的构建块.
研究的目的:
- 合成和描述两个新的n通道聚合物半导体.
- 为了研究烯共单体对聚合物特性和器件性能的影响.
- 评估这些聚合物在高性能OTFT应用中的潜力.
主要方法:
- 合成两个交替的共聚合物:P(NDI2OD-T2) 和P(PDI2OD-T2),通过用dithiophene聚合NDI和PDI单元.
- 使用这些聚合物制造未经优化的有机薄膜晶体管 (OTFT).
- 聚合物区域规律性,电子结构和电荷传输性质的表征.
主要成果:
- 与P(PDI2OD-T2) 相比,P(NDI2OD-T2) 的区域规律性和分子量更高.
- 基于P(NDI2OD-T2) 的TFT显示显著增强了电子流动性 (0.01cm2/V·s在环境中) 和稳定性 (16周) 与P(PDI2OD-T2) 相比 (2x10−4cm2/V·s在环境中在1.5周后).
- 这两种聚合物都实现了高的开关电流调制比率 (>106).
结论:
- 烯共单体的选择 (NDI与PDI) 极大地影响了聚合物的区域规律性和电子性质.
- 基于NDI的聚合物为环境OTFT提供了卓越的电子传输稳定性和性能.
- 这些基于PDI和NDI的新型聚合物代表了先进有机电子产品的有前途材料.
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