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首页> 外文会议>IEEE Photovoltaic Specialists Conference >Improving P3HT:PCBM based polymer solar cell: Role of doped PEDOT:PSS hole extracting layer towards degradation
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Improving P3HT:PCBM based polymer solar cell: Role of doped PEDOT:PSS hole extracting layer towards degradation

机译：改进基于P3HT：PCBM的聚合物太阳能电池：掺杂的PEDOT：PSS空穴提取层对降解的作用

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摘要

Films of PEDOT:PSS and doped PEDOT:PSS, used as hole extracting layer in organic solar cells, have been studied using scanning electron microscopy, Kelvin probe work function measurement, Col-Cole plots, and conductivity measurements and current voltage (I–V) characteristics with time. A change in morphology is observed in PEDOT:PSS films doped with ethylene glycol and multi-walled carbon nanotubes. The doped films have rougher morphology as compared to the pristine films. The work function increases for doped sample thus improving the charge transfer. Further, the analyses of Cole-Cole plots show that the resistance of doped film is lower than pristine film. The change in conductivity with time has been measured, and the I–V characteristics of fresh and degraded samples indicates that fall in conductivity of HEL is one of the reasons for the decrease in device performance.
机译：已使用扫描电子显微镜，开尔文探针功函数测量，Col-Cole图以及电导率测量和电流电压（I–V）研究了用作有机太阳能电池中空穴提取层的PEDOT：PSS和掺杂的PEDOT：PSS薄膜）随时间变化的特征。在掺有乙二醇和多壁碳纳米管的PEDOT：PSS薄膜中观察到形态变化。与原始膜相比，掺杂膜具有更粗糙的形态。掺杂样品的功函数增加，从而改善了电荷转移。另外，Cole-Cole图的分析表明，掺杂膜的电阻低于原始膜的电阻。测量了电导率随时间的变化，新鲜样品和降解样品的I–V特性表明HEL的电导率下降是器件性能下降的原因之一。

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