Cathode and Anode Interlayers Based on Polymer Carbon Dots via Work Function Regulation for Efficient Polymer Solar Cells
Cathode and Anode Interlayers Based on Polymer Carbon Dots via Work Function Regulation for Efficient Polymer Solar Cells
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基于聚合物碳点的阴极和阳极中间层，通过功函数调节实现高效聚合物太阳能电池
DOI：
10.1002/admi.201701519
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通讯作者：
Bai Yang
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作者：
Tianjiao Ji;Biao Guo;Fangyuan Liu;Qingsen Zeng;Chengzhuo Yu;Xiaohang Du;Gan Jin;Tanglue Feng;Shoujun Zhu;Fenghong Li;Bai Yang
在这项工作中，首次系统地研究了聚合物碳点（PCD）调节功函数的能力。他们实现了阴极和阳极中间层在聚合物太阳能电池（PSC）中的应用。 PCDs具有丰富的表面官能团，可以进行可控改性。通过用更多的给电子氨基（PCD-NH2）或吸电子羧基（PCD-COOH）调节表面基团，PCD可以分别降低或增加电极的功函数。因此，PCD-NH2可以充当PSC中的阴极中间层，而PCD-COOH则充当阳极中间层。以前很少报道用作两个中间层的单一材料系统。这可以简化材料设计和器件制造过程。此外，PCD 具有绿色、低成本、稳定且易于制造的特点。因此，PCDs在光电器件中作为商业中间层材料具有广阔的应用前景。
In this work, the ability of tuning work function for polymer carbon dots (PCDs) is systematically studied for the first time. Their application of both cathode and anode interlayers in polymer solar cells (PSCs) is achieved. PCDs possess abundant surface functional groups, which can be modified under control. Through regulating surface groups with more electron‐donating amino (PCD‐NH2) or electron‐withdrawing carboxy (PCD‐COOH), PCDs can decrease or increase work function of electrode, respectively. Therefore, PCD‐NH2 can act as cathode interlayer while PCD‐COOH plays the role of anode interlayer in PSCs. The single material system to act as both interlayers is rarely reported previously. This can simplify the design of materials and the device fabrication process. In addition, PCDs are green, low‐cost, stable, and easily fabricated. Therefore, it is demonstrated that PCDs are promising for commercial interlayer materials in optoelectronic devices.