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首页> 外文期刊>RSC Advances >Effect of counter-ions on the properties and performance of non-conjugated polyelectrolyte interlayers in solar cell and transistor devices
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Effect of counter-ions on the properties and performance of non-conjugated polyelectrolyte interlayers in solar cell and transistor devices

机译：抗衡离子对太阳能电池和晶体管器件中非共轭聚电解质中间层的性能和性能的影响

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We have investigated a series of non-conjugated polyelectrolytes (NPEs) which are based on a polyethylenimine (PEI) backbone with various counterions, such as Br ~(?) I ~(?) and BIm _(4) ~(?) , as interfacial layers at the electrodes of solar cells and transistor devices to improve the power conversion efficiency (PCE) and device performance. This new series of NPEs with different counterions are capable of forming electric dipoles at NPE/metal electrode interfaces; as a consequence tuning of the energy levels, and work function (WF) of the electrodes is possible. Using this approach, the PCE of organic solar cells could be improved from 1.05% (without NPEs) to 6.77% (with NPEs) while the charge carrier mobility and on/off ratio of FET devices could be improved, showing the broad utility of this type of material. This study provides a novel approach towards investigating the influence of ions on interfacial dipoles and electrode WFs in solution-processed semiconducting devices.
机译：我们研究了一系列基于聚乙烯亚胺（PEI）主链和各种抗衡离子（例如Br〜（？）I〜（？）和BIm _（4）〜（？）的非共轭聚电解质（NPE），作为在太阳能电池和晶体管器件的电极上的界面层，可以改善功率转换效率（PCE）和器件性能。具有不同抗衡离子的新系列NPE能够在NPE /金属电极界面处形成电偶极子。结果，可以调节电极的能级和功函数（WF）。使用这种方法，有机太阳能电池的PCE可以从1.05％（无NPE）提高到6.77％（有NPE），同时可以改善FET器件的载流子迁移率和开/关比，这显示了其广泛的用途。材料类型。这项研究提供了一种新颖的方法来研究离子对溶液处理半导体器件中界面偶极子和电极WF的影响。

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