Smart Ternary Strategy in Promoting the Performance of Polymer Solar Cells Based on Bulk-Heterojunction or Layer-By-Layer Structure

被引：125

作者：

Xu, Wenjing ^{[1
]}

Ma, Xiaoling ^{[1
]}

Son, Jae Hoon ^{[2
]}

Jeong, Sang Young ^{[2
]}

Niu, Lianbin ^{[3
]}

Xu, Chunyu ^{[1
]}

Zhang, Shuping ^{[1
]}

Zhou, Zhengji ^{[4
,5
]}

Gao, Jinhua ^{[1
]}

Woo, Han Young ^{[2
]}

Zhang, Jian ^{[6
]}

Wang, Jian ^{[7
]}

Zhang, Fujun ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China

[2] Korea Univ, Coll Sci, Dept Chem, Organ Optoelect Mat Lab, Seoul 02841, South Korea

[3] Chongqing Normal Univ, Coll Phys & Elect Engn, Chongqing 401331, Peoples R China

[4] Henan Univ, Natl & Local Joint Engn Res Ctr High Efficiency D, Minist Educ, Key Lab Special Funct Mat, Kaifeng 475004, Henan, Peoples R China

[5] Henan Univ, Sch Mat, Kaifeng 475004, Henan, Peoples R China

[6] Guilin Univ Elect Technol, Guangxi Key Lab Informat Mat, Minist Educ, Sch Mat Sci & Engn,Engn Res Ctr Elect Informat Ma, 1st Jinji Rd, Guilin 541004, Peoples R China

[7] Taishan Univ, Coll Phys & Elect Engn, Tai An 271021, Shandong, Peoples R China

来源：

SMALL | 2022年 / 18卷 / 04期

基金：

北京市自然科学基金; 中国国家自然科学基金; 新加坡国家研究基金会; 中国博士后科学基金;

关键词：

alloyed states; compatible polymer donors; power conversion efficiencies; ternary blend organic photovoltaic devices; EFFICIENCY; ACCEPTORS; HOLE;

D O I：

10.1002/smll.202104215

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Although the rapid development of polymer solar cells (PSCs) has been achieved, it is still a great challenge to explore efficient ways for improving power conversion efficiency (PCE) of PSCs from materials and device engineering. Ternary strategy has been confirmed as an efficient way to improve PCE of PSCs by employing three kinds of materials. In this work, one polymer donor PM6, and two non-fullerene materials N3 and MF1 are selected to prepare ternary PSCs with layer-by-layer (LbL) or bulk-heterojunction (BHJ) structure. The LbL and BHJ-PSCs exhibit PCEs of 16.75% and 16.76% with 15 wt% MF1 content in acceptors, corresponding to over 5% or 4% PCE improvement compared with N3-based binary PSCs with LbL or BHJ structure. The PCE improvement is mainly attributed to the fill factor enhancement from 73.29% to 76.95% for LbL-PSCs or from 74.13% to 77.51% for BHJ-PSCs by employing the ternary strategy. This work indicates that ternary strategy has great potential in preparing highly efficient LbL-PSCs via simultaneously optimizing molecular arrangement and the thickness of each layer.

引用

页数：9

共 55 条

[51] Molecular dispersion enhances photovoltaic efficiency and thermal stability in quasi-bilayer organic solar cells [J].