Disodium Edetate As a Promising Interfacial Material for Inverted Organic Solar Cells and the Device Performance Optimization

被引：25

作者：

Li, Xiaodong ^{[1
,3
]}

Zhang, Wenjun ^{[1
]}

Wang, Xueyan ^{[1
,3
]}

Gao, Feng ^{[2
]}

Fang, Junfeng ^{[1
]}

机构：

[1] Chinese Acad Sci, Ningbo Inst Mat & Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China

[2] Linkoping Univ, Dept Phys Chem & Biol IFM, SE-58183 Linkoping, Sweden

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2014年 / 6卷 / 23期

基金：

中国国家自然科学基金;

关键词：

Small molecule electrolytes; interlayer; organic solar cells; external bias; CONJUGATED POLYELECTROLYTE; LAYER; MOLECULES; CATHODE;

D O I：

10.1021/am5044278

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Disodium edetate (EDTA-Na), a popular hexadentate ligand in analytical chemistry, was successfully introduced in organic solar cells (OSCs) as cathode interfacial layer. The inverted OSCs with EDTA-Na showed superior performance both in power conversion efficiency and devices stability compared with conventional devices. Interestingly, we found that the performance of devices with EDTA-Na could be optimized through external bias treatment. After optimization, the efficiency of inverted OSCs with device structure of ITO/EDTA-Na/polymer thieno[3,4-b]thiophene/benzodithiophene (PTB7):PC71BM/MoO3/Al was significantly increased to 8.33% from an initial value of 6.75%. This work introduces a new class of interlayer materials, small molecule electrolytes, for organic solar cells.

引用

页码：20569 / 20573

页数：5

共 30 条

[1] [Anonymous], J APPL PHYS
[2] Polymer solar cells with enhanced open-circuit voltage and efficiency
Chen, Hsiang-Yu
Hou, Jianhui
Zhang, Shaoqing
Liang, Yongye
Yang, Guanwen
Yang, Yang
Yu, Luping
Wu, Yue
Li, Gang
[J]. NATURE PHOTONICS, 2009, 3 (11) : 649 - 653
[3] Interface investigation and engineering - achieving high performance polymer photovoltaic devices
Chen, Li-Min
Xu, Zheng
Hong, Ziruo
Yang, Yang
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (13) : 2575 - 2598
[4] Self-Assembled Conjugated Polyelectrolyte-Ionic Liquid Crystal Complex as an Inter layer for Polymer Solar Cells: Achieving Performance Enhancement via Rapid Liquid Crystal-Induced Dipole Orientation
Chen, Lie
Xie, Chen
Chen, Yiwang
[J]. MACROMOLECULES, 2014, 47 (05) : 1623 - 1632
[5] Recent advances in water/alcohol-soluble π-conjugated materials: new materials and growing applications in solar cells
Duan, Chunhui
Zhang, Kai
Zhong, Chengmei
Huang, Fei
Cao, Yong
[J]. CHEMICAL SOCIETY REVIEWS, 2013, 42 (23) : 9071 - 9104
[6] Highly Efficient Inverted Polymer Solar Cells Based on an Alcohol Soluble Fullerene Derivative Interfacial Modification Material
Duan, Chunhui
Zhong, Chengmei
Liu, Chunchen
Huang, Fei
Cao, Yong
[J]. CHEMISTRY OF MATERIALS, 2012, 24 (09) : 1682 - 1689
[7] Conjugated Zwitterionic Polyelectrolytes and Their Neutral Precursor as Electron Injection Layer for High-Performance Polymer Light-Emitting Diodes
Duan, Chunhui
Wang, Lei
Zhang, Kai
Guan, Xing
Huang, Fei
[J]. ADVANCED MATERIALS, 2011, 23 (14) : 1665 - +
[8] Conjugated Zwitterionic Polyelectrolyte as the Charge Injection Layer for High-Performance Polymer Light-Emitting Diodes
Fang, Junfeng
Wallikewitz, Bodo H.
Gao, Feng
Tu, Guoli
Mueller, Christian
Pace, Giuseppina
Friend, Richard H.
Huck, Wilhelm T. S.
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (04) : 683 - 685
[9] Conjugated polymer-based organic solar cells
Guenes, Serap
Neugebauer, Helmut
Sariciftci, Niyazi Serdar
[J]. CHEMICAL REVIEWS, 2007, 107 (04) : 1324 - 1338
[10] Recent Advances in Polymer Solar Cells: Realization of High Device Performance by Incorporating Water/AlcoholSoluble Conjugated Polymers as Electrode Buffer Layer
He, Zhicai
Wu, Hongbin
Cao, Yong
[J]. ADVANCED MATERIALS, 2014, 26 (07) : 1006 - 1024

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