高溶解 [1] 乙烯 [3,2-b] 乙烯 (BTBT) 衍生物用于高性能,溶液加工的有机场效应晶体管
Hideaki Ebata1, Takafumi Izawa, Eigo Miyazaki
1Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
Journal of the American Chemical Society
|November 30, 2007
概括
溶液可加工的分子半导体,2,7-Dialkyl[1]benzothieno[3,2-b]benzothiophenes,在有机场效应晶体管 (OFET) 中表现出色. 这些材料在电子应用中表现出高电荷载体的移动性和稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 半导体物理 半导体物理
背景情况:
- 有机半导体对于开发灵活和低成本的电子设备至关重要.
- 溶液加工材料对于可扩展的有机电子制造非常理想.
研究的目的:
- 为了研究2,7-Dialkyl[1]benzothieno[3,2-b]benzothiophenes作为高性能,可处理溶液的分子半导体的潜力.
- 评估由这些化合物制造的薄膜的结构和电子特性.
主要方法:
- 2,7-Dialkyl[1]benzothieno[3,2-b]benzothiophene衍生物的合成和表征. 这是一个非常简单的方法.
- 在Si/SiO2基板上使用旋转涂层沉积制造有机场效应晶体管 (OFET).
- 使用X射线衍射 (XRD) 的结构分析.
- 在环境条件下对电气性能进行评估.
主要成果:
- 螺纹涂层薄膜表现出有序的结构,XRD分析证实了这一点.
- 有机半导体表现出典型的p通道场效应晶体管 (FET) 特性.
- 场效应移动性超过1.0厘米2 V-1 s-1.
- 实现了大约10的高开/关电流比率 (电离/电关).
结论:
- 2,7-二甲基[1]甲基[3,2-b]甲基是有希望的溶液可加工的分子半导体.
- 这些材料可以制造出具有出色的电荷传输性能的高性能OFET.
- 这些发现支持在先进的有机电子应用中使用这些化合物.
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