对于具有高性能有机场效应晶体管的循环三烯胺二次体
Yabin Song1, Chong'an Di, Xiaodi Yang
1Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Science, Beijing 100080, PR China.
Journal of the American Chemical Society
|December 15, 2006
概括
循环三胺二聚体形成高度结晶的薄膜,与线性版本不同. 这种结构变化显著提高了场效应晶体管 (FET) 半导体的性能.
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:
- 三烯胺衍生物被广泛用于有机电子学研究.
- 分子结构显著影响薄膜形态和电子特性.
- 在有机半导体中实现高晶度对于设备性能至关重要.
研究的目的:
- 研究分子几何学 (循环与线性) 对薄膜形成和场效应晶体管 (FET) 半导体性能的影响.
- 为了比较循环乙烯结合的三胺二聚体与其线性对应物的特性.
- 探索有机半导体材料中的结构属性关系.
主要方法:
- 蒸汽沉积技术被用来形成循环和线性三胺分子的薄膜.
- 薄膜形态的特征是评估结晶性 (结晶与无形).
- 场效应晶体管 (FET) 设备的制造和特征是为了评估半导体性能.
主要成果:
- 循环乙烯连接的三聚胺二聚体形成了高度结晶的薄膜.
- 相应的线性分子在相同的蒸气沉积条件下形成无形薄膜.
- 基于循环分子的场效应晶体管 (FET) 设备表现出显著改善的性能.
- 使用循环分子,可以达到超过10-2cm2V-1s-1的移动性和高开/关比高达107.
结论:
- 分子设计,特别是从线性结构过渡到循环结构,是实现有机电子产品高质量的晶体薄膜的关键因素.
- 循环三胺二聚体的增强晶体性直接转化为优越的场效应晶体管 (FET) 半导体性能.
- 循环分子架构为开发高性能有机半导体材料提供了一个有希望的战略.
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