Hole extraction layer utilizing well defined graphene oxide with multiple functionalities for high-performance bulk heterojunction solar cells

被引：19
作者：
Li, Chao [1 ]
Yang, Xiaoming [1 ]
Zhao, Yue [1 ]
Zhang, Pan [1 ]
Tu, Yingfeng [1 ]
Li, Yaowen [1 ]
机构：
[1] Soochow Univ, Jiangsu Key Lab Adv Funct Polymer Design & Applic, Dept Polymer Sci & Engn, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China
来源：
ORGANIC ELECTRONICS | 2014年 / 15卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Graphene oxide; Hole extraction layer; Energy level alignment; Interfacial dipole; Organic solar cell; OPEN-CIRCUIT VOLTAGE; ORGANIC PHOTOVOLTAICS; TRANSPORT LAYER; WORK FUNCTION; INTERFACIAL LAYER; POLYMER; EFFICIENT; STABILITY; DERIVATIVES; COMPOSITE;
D O I：
10.1016/j.orgel.2014.08.007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A simple method for synthesizing a series of graphene oxide with precise oxidation (pr-GO) (mild oxidation, moderate oxidation and severe oxidation) by strictly controlling pre-oxidation steps, oxidant content and oxidation time has been successfully developed. The well defined pr-GO as hole extraction layer (HEL) presented multiple functionalities, like modulation of work function, enhanced interfacial dipole, and excellent film-forming properties, which had significantly improved the efficiency and stability of organic solar cells. The P3HT:PC61BM system device based on pr-GO-3 HEL, which possessing well defined electronic structure and moderate oxidation, exhibited an improved 3.74% in power conversion efficiency and better air-stability compared to that of other pr-GOs and conventional PEDOT:PSS based devices. The well defined electronic structure pr-GO (i.e., suitable work function, larger interfacial dipole, and high repeatability) will provide better understanding in utilizing pr-GO film as HEL in future solar cell applications. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：2868 / 2875
页数：8
相关论文
共 42 条
[1]  
Brabec CJ, 2001, ADV FUNCT MATER, V11, P374, DOI 10.1002/1616-3028(200110)11:5<374::AID-ADFM374>3.0.CO
[2]  
2-W
[3]   Ab initio calculations of dimensional and adsorbate effects on the workfunction of single-walled carbon nanotube [J].
Chen, CW ;
Lee, MH .
DIAMOND AND RELATED MATERIALS, 2003, 12 (3-7) :565-571
[4]   Interface investigation and engineering - achieving high performance polymer photovoltaic devices [J].
Chen, Li-Min ;
Xu, Zheng ;
Hong, Ziruo ;
Yang, Yang .
JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (13) :2575-2598
[5]  
Dou LT, 2012, NAT PHOTONICS, V6, P180, DOI [10.1038/nphoton.2011.356, 10.1038/NPHOTON.2011.356]
[6]   Surface Doping of Conjugated Polymers by Graphene Oxide and Its Application for Organic Electronic Devices [J].
Gao, Yan ;
Yip, Hin-Lap ;
Chen, Kung-Shih ;
O'Malley, Kevin M. ;
Acton, Orb ;
Sun, Ying ;
Ting, Guy ;
Chen, Hongzheng ;
Jen, Alex K. -Y. .
ADVANCED MATERIALS, 2011, 23 (16) :1903-+
[7]   Anode modification of inverted polymer solar cells using graphene oxide [J].
Gao, Yan ;
Yip, Hin-Lap ;
Hau, Steven K. ;
O'Malley, Kevin M. ;
Cho, Nam Chul ;
Chen, Hongzheng ;
Jen, Alex K. -Y. .
APPLIED PHYSICS LETTERS, 2010, 97 (20)
[8]   Conjugated polymer-based organic solar cells [J].
Guenes, Serap ;
Neugebauer, Helmut ;
Sariciftci, Niyazi Serdar .
CHEMICAL REVIEWS, 2007, 107 (04) :1324-1338
[9]   High performance polythiophene/fullerene bulk-heterojunction solar cell with a TiOx hole blocking layer [J].
Hayakawa, Akinobu ;
Yoshikawa, Osamu ;
Fujieda, Takuya ;
Uehara, Kaku ;
Yoshikawa, Susumu .
APPLIED PHYSICS LETTERS, 2007, 90 (16)
[10]   Simultaneous Enhancement of Open-Circuit Voltage, Short-Circuit Current Density, and Fill Factor in Polymer Solar Cells [J].
He, Zhicai ;
Zhong, Chengmei ;
Huang, Xun ;
Wong, Wai-Yeung ;
Wu, Hongbin ;
Chen, Liwei ;
Su, Shijian ;
Cao, Yong .
ADVANCED MATERIALS, 2011, 23 (40) :4636-+
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