在C70/铁纳米板场效应晶体管中,两极转变为单极转换
Dorra Mahdaoui1,2, Chika Hirata1, Kahori Nagaoka1
1Electronic Functional Macromolecules Group, Research Center for Macromolecules and Biomaterials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Ibaraki, Japan.
Nanomaterials (Basel, Switzerland)
|September 9, 2023
概括
C70/铁 (Fc) 的有机共晶体表现出两极电荷转移 (CT) 特性. 在加热后,Fc消除将它们转化为热稳定的n型半导体,展示可调节的电子行为.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 超分子化学 超分子化学
背景情况:
- 通过非共价相互作用组装的有机共晶具有独特的特性.
- 同晶体中的电荷转移 (CT) 相互作用是它们半导体特性的关键.
- C70/铁 (Fc) 共同晶体正在探索其在电子设备中的潜力.
研究的目的:
- 为了研究C70/Fc单晶共晶纳米板的双极电荷转移 (CT) 特性.
- 探索热处理对C70/Fc纳米板的晶体结构和半导体行为的影响.
- 为了比较基于C70/Fc纳米板的场效应晶体管 (FET) 与相关的C60/Fc系统的热稳定性.
主要方法:
- 制造基于C70/Fc单晶共晶纳米板的场效应晶体管 (FET).
- 在150°C的温度下进行热,以诱导结构和电子变化.
- 可见/近红外扩散反射率和光发射率产生光谱仪,以分析CT特征.
主要成果:
- 最初两极的C70/Fc纳米板FET在加热后转化为n型C70纳米板FET,由于Fc消除.
- 这种热处理导致了从双极到单极半导体行为不可逆转的过渡.
- 与之前报告的C60/Fc对应物相比,C70/Fc纳米板FET显示了增强的热稳定性.
结论:
- 这项研究突出了可调节,可热切换的C70/Fc共晶纳米板的半导体行为.
- 铁在调节电荷转移特征和初始两极性方面发挥着至关重要的作用.
- 这些发现为基于有机共晶的电子设备的设计和功能提供了宝贵的见解.
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