高效率聚合物太阳电池的界面调控
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- 英文论文题名：Interfacial Engineering for Highly Efficient Polymer Solar Cells
- 论文作者：刘志洋 ; 艾玲 ; 欧阳新华 ; 彭瑞祥 ; 洪玲 ; 葛子义
- 英文论文作者：Zhiyang Liu ; Ling Ai ; Xinhua Ouyang ; Ruixiang Peng ; Ling Hong ; Ziyi Ge ; Ningbo Institute of Material Technology and Engineering ; Chinese Academy of Sciences
- 年：2016
- 作者机构：中科院宁波材料技术与工程研究所;
- 论文关键词：聚合物太阳电池 ; 界面调控 ; 光电转换效率
- 会议召开时间：2016-07-03
- 会议录名称：中国化学会第30届学术年会摘要集-论坛二：新型前沿交叉化学论坛
- 语种：中文
- 分类号：TM914.4
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-论坛二 ; 新型前沿交叉化学论坛
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：153k
- 原文格式：D
- 会议级别：全国
摘要
聚合物太阳电池具有低价、质轻、柔性和易于大面积制备等优点,目前文献中报道的光电转换效率已经达到10-11%。然后,相比于传统的电池技术,其离商业化应用还有一定的距离,在效率和寿命等方面还需要进一步加强研发。聚合物太阳电池的界面对器件的效率和寿命有非常关键的作用,我们将主要介绍一下最近在聚合物太阳电池界面调控方面的工作。首先,创新性的开发了一类湿法加工的低价非共轭小分子电解质作为有机太阳电池的阴极界面,替代传统的蒸镀型界面材料和昂贵的有机共轭类界面材料,并对器件界面和结构进行优化,把单结正型聚合物太阳电池的光电转换效率提高至10.02%,突破了单结有机太阳电池10%效率瓶颈1-2。其次,我们把含磺酸或羧酸末端官能团的超支化聚苯醚作为聚合物太阳电池的阴极界面,这类界面材料官能度高,具有空间三维网格构型,可以形成比线性界面材料更为稳定的界面偶极3。此外,我们发现用极性溶剂如甲醇等处理活性层表面,可以改善活性层形貌,形成更好的纳级相分离结构,进而提高聚合物太阳电池的效率4。上述相关界面调控工作对提高聚合物太阳电池效率有较好的参考价值。
Interfacial Engineering plays an important role in polymer solar cells(PSCs). Here, we will illustrate our interfacial engineering strategies to achieve highly efficient PSCs. Firstly, we reported novel non-conjugated small molecule electrolytes as the interfacial layer for efficient PSCs to achieve high PCE up to 10.02% in single heterojunction PSCs. The new interfacial material was found to simultaneously offer good contact for photogenerated charge-carrier collection and allow optimum photon harvest in the device. Secondly, we demonstrated highly efficient single-junction PSCs by first incorporating two sulfonic acid or carboxylic acid functionalized hyperbranched polymers to modify the cathode interface. The influence of the hyperbranched polymer interlayer was found to be the formation of the stable multi-channel interface dipole based on quasi-immovable counterions in these polymers. Thirdly, we found that simple polar solvent treatment such as methanol could optimize morphology of the active lay and enhance the performance of the devices.
Interfacial Engineering plays an important role in polymer solar cells(PSCs). Here, we will illustrate our interfacial engineering strategies to achieve highly efficient PSCs. Firstly, we reported novel non-conjugated small molecule electrolytes as the interfacial layer for efficient PSCs to achieve high PCE up to 10.02% in single heterojunction PSCs. The new interfacial material was found to simultaneously offer good contact for photogenerated charge-carrier collection and allow optimum photon harvest in the device. Secondly, we demonstrated highly efficient single-junction PSCs by first incorporating two sulfonic acid or carboxylic acid functionalized hyperbranched polymers to modify the cathode interface. The influence of the hyperbranched polymer interlayer was found to be the formation of the stable multi-channel interface dipole based on quasi-immovable counterions in these polymers. Thirdly, we found that simple polar solvent treatment such as methanol could optimize morphology of the active lay and enhance the performance of the devices.
引文
[1]Xinhua Ouyang,Ruixiang Peng,Ling Ai,Xingye Zhang,Ziyi Ge*,Nature Photonics,2015,9:520
[2]Zhiyang Liu,Xinhua Ouyang,Ruixiang Peng,Yongqi Bai,Dongbo Mi,Weigang Jiang,Antonio Facchetti,Ziyi Ge*,J.Mater.Chem.A,2016,4:2530.
[3]Ling Ai,Zhiyang Liu,Ruixiang Peng,Dongbo Mi,Masa-aki Kakimoto,Ziyi Ge*Progress in Photovoltaics:Research and Applications,2016,DOI:10.1002/pip.2752.
[4]Y.Wang,Y.Liu,S.Chen,R.Peng,Z.Ge*.Chem.Mater.2013,25:3196.
[2]Zhiyang Liu,Xinhua Ouyang,Ruixiang Peng,Yongqi Bai,Dongbo Mi,Weigang Jiang,Antonio Facchetti,Ziyi Ge*,J.Mater.Chem.A,2016,4:2530.
[3]Ling Ai,Zhiyang Liu,Ruixiang Peng,Dongbo Mi,Masa-aki Kakimoto,Ziyi Ge*Progress in Photovoltaics:Research and Applications,2016,DOI:10.1002/pip.2752.
[4]Y.Wang,Y.Liu,S.Chen,R.Peng,Z.Ge*.Chem.Mater.2013,25:3196.