中国物理B ›› 2018, Vol. 27 ›› Issue (5): 58802-058802.doi: 10.1088/1674-1056/27/5/058802

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Efficient ternary organic solar cells with high absorption coefficient DIB-SQ as the third component

Hui-Xin Qi(齐慧欣), Bo-Han Yu(余泊含), Sai Liu(刘赛), Miao Zhang(张苗), Xiao-Ling Ma(马晓玲), Jian Wang(王健), Fu-Jun Zhang(张福俊)   

  1. 1 Key Laboratory of Luminescence and Optical Information of Ministry of Education, Beijing Jiaotong University, Beijing 100044, China;
    2 College of Physics and Electronic Engineering, Taishan University, Taian 271021, China
  • 收稿日期:2018-01-01 修回日期:2018-01-19 出版日期:2018-05-05 发布日期:2018-05-05
  • 通讯作者: Jian Wang, Fu-Jun Zhang E-mail:1986.wangjian@163.com;fjzhang@bjtu.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos.61675017,61377029,and 61705161) and the National Training Program of Innovation and Entrepreneurship for Undergraduates,China (Grant No.170170010).

Efficient ternary organic solar cells with high absorption coefficient DIB-SQ as the third component

Hui-Xin Qi(齐慧欣)1, Bo-Han Yu(余泊含)1, Sai Liu(刘赛)1, Miao Zhang(张苗)1, Xiao-Ling Ma(马晓玲)1, Jian Wang(王健)2, Fu-Jun Zhang(张福俊)1   

  1. 1 Key Laboratory of Luminescence and Optical Information of Ministry of Education, Beijing Jiaotong University, Beijing 100044, China;
    2 College of Physics and Electronic Engineering, Taishan University, Taian 271021, China
  • Received:2018-01-01 Revised:2018-01-19 Online:2018-05-05 Published:2018-05-05
  • Contact: Jian Wang, Fu-Jun Zhang E-mail:1986.wangjian@163.com;fjzhang@bjtu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos.61675017,61377029,and 61705161) and the National Training Program of Innovation and Entrepreneurship for Undergraduates,China (Grant No.170170010).

摘要:

A series of organic solar cells (OSCs) are prepared with PTB7:PC71 BM as the host materials and DIB-SQ as the third component. The power conversion efficienty (PCE) of OSCs can be improved from 6.79% to 7.92% by incorporating 6 wt% DIB-SQ into donors, resulting from the enhanced short circuit current density (JSC) and fill factor (FF). The increased JSC of the optimized ternary OSCs should be attributed to the enhanced photon harvesting of teranry active layer by incorporating DIB-SQ. Meanwhile, FF of the optimized ternary OSCs should be due to the optimied phase separation. The open circuit voltage (VOC) of tenray OSCs can be maintained at a constant of 0.75 V, indicating that all photogenerated holes willl be transported along the channels formed by PTB7.

关键词: organic solar cells, power conversion efficiency, the third component

Abstract:

A series of organic solar cells (OSCs) are prepared with PTB7:PC71 BM as the host materials and DIB-SQ as the third component. The power conversion efficienty (PCE) of OSCs can be improved from 6.79% to 7.92% by incorporating 6 wt% DIB-SQ into donors, resulting from the enhanced short circuit current density (JSC) and fill factor (FF). The increased JSC of the optimized ternary OSCs should be attributed to the enhanced photon harvesting of teranry active layer by incorporating DIB-SQ. Meanwhile, FF of the optimized ternary OSCs should be due to the optimied phase separation. The open circuit voltage (VOC) of tenray OSCs can be maintained at a constant of 0.75 V, indicating that all photogenerated holes willl be transported along the channels formed by PTB7.

Key words: organic solar cells, power conversion efficiency, the third component

中图分类号:  (Organic photovoltaics)

  • 88.40.jr
88.40.hj (Efficiency and performance of solar cells) 85.30.-z (Semiconductor devices)