在乙烯糖醇功能化聚烯中提高生物化学驱动的有机电化学晶体管性能
Rawad K Hallani1, Bryan D Paulsen2, Anthony J Petty2
1Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
Journal of the American Chemical Society
|June 30, 2021
概括
研究人员开发了一种新的半导体聚合物pgBTTT, 这种聚合物促进了离子透,并在积累模式下有效运行,推进有机电子应用.
科学领域:
- 材料科学
- 有机电子
- 聚合物化学
背景情况:
- P型半导体聚合物对生物电子非常重要,需要有效的离子透和积累模式操作.
- 糖醇侧链增强聚合物中的注和胀,如p{g2T-TT}所示.
研究的目的:
- 通过改变糖醇侧链位置来合成和比较一个新的区域异构聚合物,pgBTTT和p(g2T-TT).
- 研究区域异构对聚合物微结构,平面性和电荷传输特性的影响.
主要方法:
- 合成pgBTTT并与p(g2T-TT进行比较.
- 用于微观结构分析的宽角X射线散射 (GIWAXS).
- 扫描道显微镜 (STM) 和带有能量消散的电化学石英晶体微平衡 (eQCM-D) 用于结构和兴奋剂行为评估.
主要成果:
- 与p{g2T-TT}相比,pgBTTT表现出减少的脊柱障碍,增强的π堆积和更高的散射强度.
- 在pgBTTT中,孔的移动性 (μ) 达到3.44±0.13cm2V-1s-1,明显高于p(g2T-TT).
- 在pgBTTT中的糖醇侧链有助于分子间消化,并在注过程中保持结构刚性.
结论:
- 半导体聚合物中的糖醇侧链的区域性异构对微观结构和电荷传输有重大影响.
- 由于提高平面性和兴奋剂稳定性,pgBTTT在生物电子应用中表现出卓越的性能.
- 这些发现突出了设计用于生物电子设备的高性能有机半导体的新战略.
相关概念视频
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