n型有机场效应晶体管具有非常高的电子流动性,基于含三甲基基的 thiazole oligomers
Shinji Ando1, Ryo Murakami, Jun-ichi Nishida
1Department of Electronic Chemistry, Tokyo Institute of Technology, Midori-ku, Yokohama 226-8502, Japan.
Journal of the American Chemical Society
|October 27, 2005
概括
具有三甲基基的新型 thiazole 和 co-oligomers 在有机场效应晶体管 (OFET) 中充当高性能 n 型半导体. 乙醇衍生物达到1.83cm2/Vs的高电子流动性,显示出出色的n型半导体性能.
科学领域:
- 有机电子学有机电子学
- 材料科学是一种材料科学.
- 半导体物理 半导体物理
背景情况:
- 有机场效应晶体管 (OFET) 需要高效的n型半导体用于互补电路.
- 基于 thiazole 和 thiophene 的小聚合物是有机电子应用的有希望的候选者.
- 引入三甲基基可以调节电子特性和分子包装.
研究的目的:
- 合成和表征新型的 thiazole 和 thiazole/thiophene 同类聚合物,其中包含三甲基基.
- 评估它们作为n型半导体在有机场效应晶体管 (OFET) 中的性能.
- 研究分子结构,固态包装和电荷传输特性之间的关系.
主要方法:
- 用三甲基替代剂合成 thiazole 和 thiazole/thiophene 同类分子.
- 使用这些材料的OFET设备的制造和电气特性.
- 使用像X射线衍射这样的技术分析分子结构和固态包装.
- 测量电子移动性和其他设备性能指标.
主要成果:
- 开发的寡合物在OFET中表现出极好的n型半导体行为.
- 一种特定的含有三甲基基的5.5'-二甲醇衍生物显示出高电子流动性.
- 这种 bithiazole 衍生物形成了一个紧密包装的二维柱状结构.
- 在经过八基三西兰 (OTS) 处理的基板上实现了1.83cm2/Vs的增强电子流动性.
结论:
- 新型 thiazole 和具有三甲基基的同类聚合物是 OFET 的有效 n 型半导体.
- 量身定制的分子设计,包括5.5'-bithiazole核心和三甲基替代剂,促进了有利的固态包装.
- 观察到的高电子流动性凸显了这些材料在高性能有机电子设备中的潜力.
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