替代性杂的螺旋双 () 基基分子固体中的增强电导率
Sushanta K Pal1, Pradip Bag, Mikhail E Itkis
1Department of Chemistry and Chemical & Environmental Engineering, University of California , Riverside, California 92521, United States.
Journal of the American Chemical Society
|October 2, 2014
概括
用 ([PLY(O,O) ]2Be) 杂有机导体,通过在 ([PLY(O,O) ]2B) 基格上引入孔,提高导电性. 这种替换可以改善电气性能,但不会显著改变固态结构.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 固态化学 固态化学
背景情况:
- 有机导体是具有与金属相似的电导率的材料.
- 螺旋双 (?? 烯) 基 ([PLY(O,O) ]2B) 形成一个具有独特旋转特性的主机格子.
- 兴奋剂是一种常见的策略,用于调整材料的电子特性.
研究的目的:
- 调查替代性兴奋剂对基于螺旋二 () 基的有机导体的导电性的影响.
- 了解通过兴奋剂引入孔如何影响电子结构和导电机制.
- 通过联合结晶来探索固态溶液的形成.
主要方法:
- 螺旋双 (?? 氧化烯) 基 ([PLY(O,O) ]2B) 与螺旋双 (?? 氧化烯) ([PLY(O,O) ]2Be) 的联合结晶.
- 形成具有不同组成的固态溶液 ([PLY(O,O) ]2B(1-x) Be(x)).
- 测量电导率和激活能量.
主要成果:
- 电导率的系统增长随着多剂度的增加 (x).
- 导电过程的激活能量的减少.
- 在使用兴奋剂时,固态结构的最小扰动.
- 电子结构与共振价值键模型一致.
结论:
- 用[PLY(O,O) ]2Be进行替代注,有效地在[PLY(O,O) ]2B有机导体中引入孔,并提高导电性.
- 观察到的导电性和激活能量的变化支持电子结构的共振价值键模型.
- 同结晶提供了一个可行的途径,以创建可调节的有机电子材料.
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