膜形态学对PEDOT:PSSS电导性的影响:PSSS
Aditya Saha1, Daisuke Ohori1, Takahiko Sasaki2
1Institute of Fluid Science, Tohoku University, Sendai 980-8577, Japan.
Nanomaterials (Basel, Switzerland)
|January 11, 2024
概括
这项研究研究了二次剂对高导电性聚二二氧化:聚二硫酸盐 (PEDOT:PSS) 配方的作用. 添加二甲基硫氧化物 (DMSO) 改变了薄膜形态和降低了导电性,为PEDOT:PSS应用提供了新的调方法.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 有机电子 有机电子
背景情况:
- 商用聚3,4-乙烯二氧化硫:聚乙烯硫酸盐 (PEDOT:PSS) 需要二次补充剂,如二甲基硫氧化物 (DMSO) 或乙烯基醇 (EG),以达到高导电性.
- 赫雷乌斯·克莱维奥斯FHC太阳能是一种PEDOT:PSS配方,在没有二次补充剂的情况下达到500S/cm以上.
研究的目的:
- 调查二次剂,特别是DMSO对Clevios F HC太阳能PEDOT:PSS的导电性和形态学的影响.
- 通过控制添加二次剂来探索调整PEDOT:PSS特性的潜力.
主要方法:
- 克莱维奥斯FHC太阳能PEDOT:PSS薄膜的螺旋涂层.
- 在不同温度下进行四探头导电性测量.
- 原子力显微镜 (AFM) 用于分析薄膜形态和域定向.
主要成果:
- 在FHC太阳能膜中导电性的温度依赖性不同于二次合的PH1000,这表明有不同的电荷传输机制.
- 原子力显微镜显示,DMSO度影响了薄膜内PEDOT域的方向.
- 室温导电性从原始薄膜中的640 S/cm下降到添加7重%DMSO后的555 S/cm.
结论:
- 像DMSO这样的二次兴奋剂可以修改高性能PEDOT:PSS配方的形态和导电性.
- 由DMSO引起的形态变化会影响电荷传输特性.
- 这种对PEDOT:PSS属性的受控调整可能对纳米探测器,晶体管和混合太阳能电池的应用有价值.
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