Efficient All-Polymer Solar Cells based on a New Polymer Acceptor Achieving 10.3% Power Conversion Efficiency

被引:197
作者
Yao, Huatong [1 ,2 ,3 ]
Bai, Fujin [1 ,2 ,3 ]
Hu, Huawei [5 ,6 ]
Arunagiri, Lingeswaran [1 ,2 ,3 ]
Zhang, Jianquan [1 ,2 ,3 ]
Chen, Yuzhong [1 ,2 ,3 ]
Yu, Han [1 ,2 ,3 ]
Chen, Shangshang [1 ,2 ,3 ]
Liu, Tao [1 ,2 ,3 ]
Lai, Joshua Yuk Lin [1 ,2 ,3 ]
Zou, Yingping [4 ]
Ade, Harald [5 ,6 ]
Yan, He [1 ,2 ,3 ]
机构
[1] Hong Kong Univ Sci & Technol, Shenzhen Res Inst, 9 Yuexing 1st Rd,Hitech Pk, Shenzhen 518057, Peoples R China
[2] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Clear Water Bay, Hong Kong, Peoples R China
[3] Hong Kong Univ Sci & Technol, Hong Kong Branch, Chinese Natl Engn Res Ctr Tissue Restorat & Recon, Kowloon, Clear Water Bay, Hong Kong, Peoples R China
[4] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China
[5] North Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA
[6] North Carolina State Univ, Organ & Carbon Elect Lab, Raleigh, NC 27695 USA
基金
美国国家科学基金会;
关键词
FULLERENE-POLYMER; ORGANIC PHOTOVOLTAICS; ELECTRON-ACCEPTORS; MOLECULAR PACKING; DONOR POLYMER; PERFORMANCE; MORPHOLOGY; ENABLES; DESIGN; OPTIMIZATION;
D O I
10.1021/acsenergylett.8b02114
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Here we demonstrate efficient all-polymer solar cells (all-PSCs) based on a polymer acceptor named PFBDT-IDTIC. By combining PFBDT-IDTIC with a fluorinated donor polymer (PM6), a high power conversion efficiency of 10.3% can be achieved, which is the highest value reported to date for single-junction all-PSCs. This performance can be attributed to its good absorption property (absorption coefficient: 2.74 x 10(5) cm(-1)) and high electron mobility of PFBDT-IDTIC. It is also found that the choice of donor polymer has major impacts on the performance of the cell. By replacing PBDB-T with its fluorinated counterpart, PM6, the V-OC, J(SC), and FF of the devices were all improved, which can be attributed to the deeper HOMO level of PM6 and more crystalline and pure domains of the active layer blends. Our study provides a promising polymer acceptor for all-PSCs and also shows that selecting a matching donor polymer is important in achieving the optimal all-PSC performance.
引用
收藏
页码:417 / 422
页数:11
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