利用苯并二噻吩基聚合物给体和三芳胺基非稠环电子受体构筑简单高效有机太阳能电池
Using Benzodithiophene-based Polymer Donors and Triarylamine-based Non-fused Ring Electron Acceptors to Construct Simple Yet Efficient Organic Solar Cells
蒋晓林 1汪航 2马雪晴 3王逸凡 1路皓 1刘亚辉 2薄志山4
作者信息
- 1. 青岛大学 材料科学与工程学院 青岛 266071;青岛大学 纺织服装学院 青岛 266071
- 2. 青岛大学 纺织服装学院 青岛 266071
- 3. 北京师范大学化学学院能量转换与存储材料北京市重点实验室 北京 100875
- 4. 青岛大学 纺织服装学院 青岛 266071;北京师范大学化学学院能量转换与存储材料北京市重点实验室 北京 100875
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摘要
使用简单的聚合物给体P(C1)和简单非稠环受体2BTh-2F,构建了低成本的高性能有机太阳能电池.并选用固体添加剂二碘苯(DIB),对共混膜形貌进行精细调控.通过原子力显微镜、高分辨透射电镜以及原位紫外-可见光吸收光谱等手段,深入研究了活性层的成膜过程、共混膜相分离形貌等.最终,基于P(Cl):2BTh-2F的器件获得0.861 V的开路电压(open circuit voltage,VOC)、23.18 mA/cm的短路电流密度(short-circuit current density,JSC)、71.21％的填充因子(fill factor,FF)以及 14.21％的功率转换效率(power conversion efficiency,PCE).
Abstract
We utilized a low-cost polymer donor P(C1)with a simple non-fused ring acceptor 2BTh-2F as the active layer material for device preparation.Through careful selection and optimization of additives,the microstructure and interfacial interactions of the device were significantly enhanced,resulting in an excellent power conversion efficiency(PCE)of 14.21％.The device achieves an open-circuit voltage(VOC)as high as 0.861 V,a short-circuit current density(Jsc)of 23.18 mA/cm2,and a fill factor(FF)of 71.21％,which exceed the performance of the control without additives(12.51％).It is noteworthy that this efficiency value is one of the highest achieved to date based on the pairing of a simple polymer donor material with a simple non-fused ring acceptor material.Our work not only demonstrates the great potential of low-cost materials in the preparation of high-performance devices,but also proves that dual low-cost,high-efficiency devices with polymer donors and small-molecule acceptors can be realized by finely tuning the morphology of the blended film and deeply studying the film-forming process.This work opens up a new path for the future development of low-cost and high-performance photovoltaic devices,which is of great scientific significance and practical application value.
关键词
有机太阳能电池/简单给体/非稠环受体/光电转化效率Key words
Organic solar cell/Simple donor/Non-fused ring acceptor/Photovoltaic conversion efficiency引用本文复制引用
基金项目
国家自然科学基金(52173174)
国家自然科学基金(51933001)
国家自然科学基金(22109080)
出版年
2024
NETL
NSTL
万方数据