侧链长度和功能对基于盐水的有机电化学晶体管的极性多氧化的影响
Brandon T DiTullio1, Lisa R Savagian2, Olivier Bardagot3
1School of Chemistry and Biochemistry, Center for Organic Photonics and Electronics, Georgia Tech Polymer Network, Georgia Institute of Technology, Atlanta, Georgia30332, United States.
Journal of the American Chemical Society
|December 23, 2022
概括
短氧侧链使生物电化学装置的合聚合物具有高容量. 较长的glime侧链增强有机电化学晶体管的性能和稳定性,而不是电容.
科学领域:
- 材料科学
- 电化学
- 聚合物化学
背景情况:
- 结合聚合物是有机电化学晶体管 (OECT) 等生物电化学设备的关键.
- 了解侧链如何影响聚合物特性对于优化OECT性能至关重要.
- 水性氧化还原特性和兴奋剂对OECT的功能至关重要.
研究的目的:
- 研究甘氨酸侧链长度和基替代剂对基于二氧化的共聚物的影响.
- 将材料特性与有机电化学晶体管 (OECT) 的性能相关联.
- 阐明OECT性能增强背后的机制.
主要方法:
- 二氧化硫烯共聚物的合成,具有不同的甘氨酸侧链长度和酸侧链.
- 电化学表征包括循环电压测量和时电压测量.
- 在位时间解析的光谱电化学和平面OECT配置的设备测试.
主要成果:
- 短的基侧链促进了注,并在盐溶液电解质中实现了高体积电容 (C*).
- 增加glime侧链长度可以提高OECT的性能,兴奋剂动力学和稳定性.
- 观察到最长的glime侧链的最高性能 ([μC*]OECT = 200 ± 8 F cm−1 V−1 s−1),归因于增加的移动性而不是C*.
- 由于接触电阻,设备的几何结构可能会影响OECT的基准测试.
结论:
- 基侧链为OECT提供了高容量的简单途径.
- 较长的glime侧链有助于提高OECT的运行性能和稳定性.
- 可通过侧链工程调整聚二氧化的材料设计原理,用于先进的生物电化学应用.
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