Extremely efficient flexible organic solar cells with a graphene transparent anode: Dependence on number of layers and doping of graphene

doi:10.1016/j.carbon.2020.08.038

IMR OpenIR

	Extremely efficient flexible organic solar cells with a graphene transparent anode: Dependence on number of layers and doping of graphene
	Du, Jinhong 1,2; Zhang, Dingdong 1,2; Wang, Xiao 3; Jin, Hui 3; Zhang, Weimin 1,2; Tong, Bo 1,2; Liu, Yu 1,4; Burn, Paul L.3; Cheng, Hui-Ming 1,2,5; Ren, Wencai 1,2
通讯作者	Burn, Paul L.(p.burn2@uq.edu.au) ; Ren, Wencai(wcren@imr.ac.cn)
	2021
发表期刊	CARBON
ISSN	0008-6223
卷号	171 页码:350-358
摘要	Graphene has shown tremendous potential as a transparent conductive electrode (TCE) for flexible organic solar cells (OSCs). However, the trade-off between electrical conductance and transparency as well as surface roughness of the graphene TCE with increasing layer number limits power conversion efficiency (PCE) enhancement and its use for large-area OSCs. Here, we use a 300 nm-thick poly[(2,5-bis(2-hexyldecyloxy) phenylene)-alt-(5,6-difluoro-4,7-di(thiophen-2-yl)benzo[c]-[1,2,5]thiadiazole)]:[6,6]-phenyl-C-71-butyric acid methyl ester blend as the photoactive layer and a benzimidazole (BI)-doped graphene as the transparent anode to demonstrate efficient OSCs with good flexibility. It is found that 3 layer (L) graphene had the best balance between sheet resistance, optical transmittance and surface roughness for optimized cell design. A 0.2 cm2 cell with a 3L BI-doped graphene anode had a PCE of 6.85%, which is one of the highest PCE values reported so far for flexible graphene anode-based OSCs. The flexible cells were mechanically robust, showing only a small performance degradation during up to 250 flexing cycles. Moreover, the combination of the thick photoactive layer with the optimized 3L BI-doped graphene TCE enabled production of 1.6 cm(2) flexible OSCs with a PCE of 1.8%. Our work illustrates the importance of graphene TCE development for flexible OSCs as well as other wearable optoelectronic devices. (C) 2020 Elsevier Ltd. All rights reserved.
关键词	Organic solar cell Graphene Transparent conductive electrode Surface roughness
资助者	Ministry of Science and Technology of China ; National Natural Science Foundation of China ; LiaoNing Revitalization Talents Program ; Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Postdoctoral Science Foundation of China ; Australian Government through Australian Renewable Energy Agency (ARENA) Australian Centre for Advanced Photovoltaics
DOI	10.1016/j.carbon.2020.08.038
收录类别	SCI
语种	英语
资助项目	Ministry of Science and Technology of China[2016YFA0200101] ; National Natural Science Foundation of China[51572265] ; National Natural Science Foundation of China[51861135201] ; LiaoNing Revitalization Talents Program[XLYC1808013] ; Chinese Academy of Sciences[KGZD-EW-303-1] ; Chinese Academy of Sciences[KGZD-EW-303-3] ; Chinese Academy of Sciences[ZDBS-LY-JSC027] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB30030000] ; Postdoctoral Science Foundation of China[2020M670812] ; Postdoctoral Science Foundation of China[2020TQ0328] ; Australian Government through Australian Renewable Energy Agency (ARENA) Australian Centre for Advanced Photovoltaics
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000598371500038
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：34[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/158851
专题	中国科学院金属研究所
通讯作者	Burn, Paul L.; Ren, Wencai
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Univ Queensland, Ctr Organ Photon & Elect, Sch Chem & Mol Biosci, Brisbane, Qld 4072, Australia 4.Shenyang Univ Chem Technol, Coll Sci, Shenyang 110142, Peoples R China 5.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Berkeley Shenzhen Inst, 1001 Xueyuan Rd, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Du, Jinhong,Zhang, Dingdong,Wang, Xiao,et al. Extremely efficient flexible organic solar cells with a graphene transparent anode: Dependence on number of layers and doping of graphene[J]. CARBON,2021,171:350-358.
APA	Du, Jinhong.,Zhang, Dingdong.,Wang, Xiao.,Jin, Hui.,Zhang, Weimin.,...&Ren, Wencai.(2021).Extremely efficient flexible organic solar cells with a graphene transparent anode: Dependence on number of layers and doping of graphene.CARBON,171,350-358.
MLA	Du, Jinhong,et al."Extremely efficient flexible organic solar cells with a graphene transparent anode: Dependence on number of layers and doping of graphene".CARBON 171(2021):350-358.