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Pushing the conductance and transparency limit of monolayer graphene electrodes for flexible organic light-emitting diodes

文献类型：期刊论文

作者Ma, Lai-Peng1,2; Wu, Zhongbin3; Yin, Lichang1,2; Zhang, Dingdong1,2; Dong, Shichao1,2; Zhang, Qing1,2; Chen, Mao-Lin1,2; Ma, Wei1,2; Zhang, Zhibin4; Du, Jinhong1,2
刊名PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
出版日期2020-10-20
卷号117期号:42页码:25991-25998
ISSN号0027-8424
关键词flexible optoelectronics graphene transparent electrode doping antireflection
DOI10.1073/pnas.1922521117
通讯作者Ren, Wencai(wcren@imr.ac.cn)
英文摘要Graphene has emerged as an attractive candidate for flexible transparent electrode (FTE) for a new generation of flexible optoelectronics. Despite tremendous potential and broad earlier interest, the promise of graphene FTE has been plagued by the intrinsic trade-off between electrical conductance and transparency with a figure of merit (sigma(DC)/sigma(Op)) considerably lower than that of the state-of-the-art ITO electrodes (sigma(DC)/sigma(Op) <123 for graphene vs. similar to 240 for ITO). Here we report a synergistic electrical/optical modulation strategy to simultaneously boost the conductance and transparency. We show that a tetrakis(pentafluorophenyl)boric acid (HTB) coating can function as highly effective hole doping layer to increase the conductance of monolayer graphene by sevenfold and at the same time as an antireflective layer to boost the visible transmittance to 98.8%. Such simultaneous improvement in conductance and transparency breaks previous limit in graphene FTEs and yields an unprecedented figure of merit (sigma(DC)/sigma(Op) similar to 323) that rivals the best commercial ITO electrode. Using the tailored monolayer graphene as the flexible anode, we further demonstrate high-performance green organic light-emitting diodes (OLEDs) with the maximum current, power and external quantum efficiencies (111.4 cd A(-1), 124.9 lm W-1 and 29.7%) outperforming all comparable flexible OLEDs and surpassing that with standard rigid ITO by 43%. This study defines a straight-forward pathway to tailor optoelectronic properties of monolayer graphene and to fully capture their potential as a generational FTE for flexible optoelectronics.
资助项目Ministry of Science and Technology of China[2016YFA0200101] ; Ministry of Science and Technology of China[2016YFB04001104] ; National Natural Science Foundation of China[51325205] ; National Natural Science Foundation of China[51290273] ; National Natural Science Foundation of China[51521091] ; National Natural Science Foundation of China[51272256] ; National Natural Science Foundation of China[61422406] ; National Natural Science Foundation of China[61574143] ; National Natural Science Foundation of China[51861135201] ; Chinese Academy of Sciences[ZDBS-LY-JSC027] ; Chinese Academy of Sciences[XDB30000000] ; Chinese Academy of Sciences[KGZD-EW-303-1] ; Chinese Academy of Sciences[KGZD-EW-303-3] ; Chinese Academy of Sciences[KGZD-EW-T06] ; Liaoning Revitalization Talents Program[XLYC1808013] ; Program for Guangdong Introducing Innovative and Entrepreneurial Teams ; Development and Reform Commission of Shenzhen Municipality for the development of the LowDimensional Materials and Devices discipline
WOS研究方向Science & Technology - Other Topics
语种英语
出版者NATL ACAD SCIENCES
WOS记录号WOS:000580597300012
资助机构Ministry of Science and Technology of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Liaoning Revitalization Talents Program ; Program for Guangdong Introducing Innovative and Entrepreneurial Teams ; Development and Reform Commission of Shenzhen Municipality for the development of the LowDimensional Materials and Devices discipline
源URL[http://ir.imr.ac.cn/handle/321006/140939]  
专题金属研究所_中国科学院金属研究所
通讯作者Ren, Wencai
作者单位1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymers Phys & Chem, Changchun 130022, Peoples R China
4.Peking Univ, Sch Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
5.Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
6.South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Peoples R China
7.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China
推荐引用方式
GB/T 7714		 Ma, Lai-Peng,Wu, Zhongbin,Yin, Lichang,et al. Pushing the conductance and transparency limit of monolayer graphene electrodes for flexible organic light-emitting diodes[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2020,117(42):25991-25998.
APA Ma, Lai-Peng.,Wu, Zhongbin.,Yin, Lichang.,Zhang, Dingdong.,Dong, Shichao.,...&Ren, Wencai.(2020).Pushing the conductance and transparency limit of monolayer graphene electrodes for flexible organic light-emitting diodes.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(42),25991-25998.
MLA Ma, Lai-Peng,et al."Pushing the conductance and transparency limit of monolayer graphene electrodes for flexible organic light-emitting diodes".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.42(2020):25991-25998.

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