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电力和PEDOT:PSS的层层沉积:PSS

Banchamlak Bemerw Kassaun¹, Saba Khodavandegar¹, Pedram Fatehi¹

¹Green Processes Research Centre and Chemical Engineering Department, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B5E1, Canada.

Langmuir : the ACS journal of surfaces and colloids

|September 30, 2024

概括

实力 (KL) 和导电性聚3,4-乙烯二氧化:聚硫酸 (PEDOT:PSS) 的相互作用被研究. 最佳条件提高了光伏材料的导电性.

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
电化学电化学电化学

背景情况:

实力 (KL) 是一种可持续的碳来源,具有光伏应用的潜力.
KL的低导电性限制了其使用;与PEDOT:PSS等导电性聚合物相结合可以改善这一点.
了解KL-PEDOT:PSS相互作用对于开发先进的导电材料至关重要.

研究的目的:

为了研究Kraft素 (KL) 和PEDOT:PSS.之间的溶液状态相互作用.
为了确定环境因素 (pH,离子强度) 对KL-PEDOT:PSS相互作用的影响.
评估这些相互作用对光伏应用所产生的薄膜导电性和形态学的影响.

主要方法:

石英晶体微平衡与消散 (QCM-D) 和停滞点折射计 (SPAR) 用于研究吸附.
接触角测量和扫描电子显微镜 (SEM) 分析了表面特性和形态.
在使用KL和PEDOT:PSS.的薄膜上进行电导度测量.

主要成果:

像pH和离子强度这样的水环境因素显著影响了KL和PEDOT:PSS粒子大小和泽塔潜力.
PEDOT:PSS对KL的最大吸附发生在pH 6和10mM NaCl,归因于线性聚合物结构和降低的静电排斥.
在ITO玻璃上的KL层之间存在PEDOT:PSS层,提高了电导率,观察到水接触角度增加和多孔表面形态.

结论:

环境条件极大地影响了溶液中的Kraft素和PEDOT:PSS相互作用.
优化条件促进增强吸附和薄膜形成,从而提高导电性.
在与PEDOT:PSS相结合时,强电宁对开发光伏导电和防水材料充满希望.

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