A chlorinated low-bandgap small-molecule acceptor for organic solar cells with 14.1% efficiency and low energy loss

被引：212

作者：

Kan, Bin ^{[1
,2
]}

Feng, Huanran ^{[1
,2
]}

Yao, Huifeng ^{[3
]}

Chang, Meijia ^{[1
,2
]}

Wan, Xiangjian ^{[1
,2
]}

Li, Chenxi ^{[1
,2
]}

Hou, Jianhui ^{[3
]}

Chen, Yongsheng ^{[1
,2
]}

机构：

[1] Nankai Univ, Coll Chem, Ctr Nanoscale Sci & Technol, State Key Lab & Inst Elementoorgan Chem, Tianjin 300071, Peoples R China

[2] Nankai Univ, Coll Chem, Key Lab Funct Polymer Mat, Tianjin 300071, Peoples R China

[3] Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, Beijing Natl Lab Mol Sci,State Key Lab Polymer Ph, Beijing 100190, Peoples R China

来源：

SCIENCE CHINA-CHEMISTRY | 2018年 / 61卷 / 10期

基金：

中国国家自然科学基金;

关键词：

small-molecule acceptor; low-bandgap; chlorinated; high performance; NON-FULLERENE ACCEPTORS; ELECTRON-ACCEPTORS; POLYMER; DESIGN; DONOR; GAP; PHOTOVOLTAICS;

D O I：

10.1007/s11426-018-9334-9

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new acceptor-donor-acceptor (A-D-A) type small-molecule acceptor NCBDT-4Cl using chlorinated end groups is reported. This new-designed molecule demonstrates wide and efficient absorption ability in the range of 600-900 nm with a narrow optical bandgap of 1.40 eV. The device based on PBDB-T-SF:NCBDT-4Cl shows a power conversion efficiency (PCE) of 13.1% without any post-treatment, which represents the best result for all as-cast organic solar cells (OSCs) to date. After device optimizations, the PCE was further enhanced to over 14% with a high short-circuit current density (J (sc)) of 22.35 mA cm(-2) and a fill-factor (FF) of 74.3%. The improved performance was attributed to the more efficient photo-electron conversion process in the optimal device. To our knowledge, this outstanding efficiency of 14.1% with an energy loss as low as 0.55 eV is among the best results for all single-junction OSCs.

引用

页码：1307 / 1313

页数：7

共 44 条

[11] An Alkylated Indacenodithieno[3,2-b]thiophene-Based Nonfullerene Acceptor with High Crystallinity Exhibiting Single Junction Solar Cell Efficiencies Greater than 13% with Low Voltage Losses [J].

Fei, Zhuping ;

Eisner, Flurin D. ;

Jiao, Xuechen ;

Azzouzi, Mohammed ;

Rohr, Jason A. ;

Han, Yang ;

Shahid, Munazza ;

Chesman, Anthony S. R. ;

Easton, Christopher D. ;

McNeill, Christopher R. ;

Anthopoulos, Thomas D. ;

Nelson, Jenny ;

Heeney, Martin .

ADVANCED MATERIALS, 2018, 30 (08)

[12]

Hou JH, 2018, NAT MATER, V17, P119, DOI [10.1038/nmat5063, 10.1038/NMAT5063]

[13] Fine-Tuning the Energy Levels of a Nonfullerene Small-Molecule Acceptor to Achieve a High Short-Circuit Current and a Power Conversion Efficiency over 12% in Organic Solar Cells [J].

Kan, Bin ;

Zhang, Jiangbin ;

Liu, Feng ;

Wan, Xiangjian ;

Li, Chenxi ;

Ke, Xin ;

Wang, Yunchuang ;

Feng, Huanran ;

Zhang, Yamin ;

Long, Guankui ;

Friend, Richard H. ;

Bakulin, Artem A. ;

Chen, Yongsheng .

ADVANCED MATERIALS, 2018, 30 (03)

[14] Small-Molecule Acceptor Based on the Heptacyclic Benzodi(cyclopentadithiophene) Unit for Highly Efficient Nonfullerene Organic Solar Cells [J].

Kan, Bin ;

Feng, Huanran ;

Wan, Xiangjian ;

Liu, Feng ;

Ke, Xin ;

Wang, Yanbo ;

Wang, Yunchuang ;

Zhang, Hongtao ;

Li, Chenxi ;

Hou, Jianhui ;

Chen, Yongsheng .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (13) :4929-4934

[15]

Li G, 2012, NAT PHOTONICS, V6, P153, DOI [10.1038/nphoton.2012.11, 10.1038/NPHOTON.2012.11]

[16] Efficient Organic Solar Cells with Non-Fullerene Acceptors [J].

Li, Shuixing ;

Liu, Wenqing ;

Li, Chang-Zhi ;

Shi, Minmin ;

Chen, Hongzheng .

SMALL, 2017, 13 (37)

[17] Amorphizing of Au Nanoparticles by CeOx-RGO Hybrid Support towards Highly Efficient Electrocatalyst for N2 Reduction under Ambient Conditions [J].

Li, Si-Jia ;

Bao, Di ;

Shi, Miao-Miao ;

Wulan, Ba-Ri ;

Yan, Jun-Min ;

Jiang, Qing .

ADVANCED MATERIALS, 2017, 29 (33)

[18] Energy-Level Modulation of Small-Molecule Electron Acceptors to Achieve over 12% Efficiency in Polymer Solar Cells [J].

Li, Sunsun ;

Ye, Long ;

Zhao, Wenchao ;

Zhang, Shaoqing ;

Mukherjee, Subhrangsu ;

Ade, Harald ;

Hou, Jianhui .

ADVANCED MATERIALS, 2016, 28 (42) :9423-+

[19] An Electron Acceptor Challenging Fullerenes for Efficient Polymer Solar Cells [J].

Lin, Yuze ;

Wang, Jiayu ;

Zhang, Zhi-Guo ;

Bai, Huitao ;

Li, Yongfang ;

Zhu, Daoben ;

Zhan, Xiaowei .

ADVANCED MATERIALS, 2015, 27 (07) :1170-1174

[20] A Thieno[3,4-b]thiophene-Based Non-fullerene Electron Acceptor for High-Performance Bulk-Heterojunction Organic Solar Cells [J].

Liu, Feng ;

Zhou, Zichun ;

Zhang, Cheng ;

Vergote, Thomas ;

Fan, Haijun ;

Liu, Feng ;

Zhu, Xiaozhang .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2016, 138 (48) :15523-15526

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