有机半导体alpha-quinquethiophene的多层次自我组织
Manuela Melucci1, Massimo Gazzano, Giovanna Barbarella
1Istituto per la Sintesi Organica e la Fotoreattivita', Consiglio Nazionale delle Ricerche, Via Gobetti 101, 40129 Bologna, Italy.
Journal of the American Chemical Society
|August 21, 2003
概括
半导体α-quinquethiophene (T5) 的薄膜显示了跨多个尺度的等级自我亲和组织. 这种结构通过真空升华或融灭来实现,增强了分子排序和电荷传输特性.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 纳米技术 纳米技术
背景情况:
- 有机半导体对于灵活的电子产品至关重要.
- 控制薄膜中的分子组织会影响设备的性能.
- 阿尔法-昆奎西奥芬 (T5) 是一个有前途的有机半导体材料.
研究的目的:
- 为了调查T5薄膜中的等级自我亲和组织.
- 探索真空升华和融对T5薄膜结构和特性的影响.
- 评估T5对高性能有机场效应晶体管 (OFET) 的潜力.
主要方法:
- 薄膜沉积通过真空升华和融灭.
- 使用X射线衍射 (XRD) 的结构特征.
- 使用原子力显微镜 (AFM) 和光学显微镜进行形态分析.
主要成果:
- T5电影展示了从纳米到微米的等级自我亲和组织.
- 真空蒸发的薄膜显示h00平面的偏好方向.
- 化灭可以创建微米大小的单晶状结构,具有增强的分子排序和域大小.
- 实现了与最先进的α-sexithiophene膜相比较的场效果孔移动性.
结论:
- 层次的自我亲和组织是T5薄膜固有的.
- 灭是一种有效的方法,可以改善T5膜中的分子排序和晶体域大小.
- T5是一种高性能有机半导体,适用于OFET应用而不需要广泛的优化.
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