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题名: Efficiency improved for inverted polymer solar cells with electrostatically self-assembled BenMelm-CI ionic liquid layer as cathode interface layer
作者: Fu, Ping1, 2;  Huang, Linquan1, 2;  Yu, Wei1, 2;  Yang, Dong1;  Liu, Guiji1, 2;  Zhou, Lingyu1, 2;  Zhang, Jian1;  Li, Can1
关键词: Inverted polymer ;  solar cells ;  Ionic liquid ;  Self-assembled ;  Cathode interface ;  Layer
刊名: NANO ENERGY
发表日期: 2015-04-01
DOI: 10.1016/j.nanoen.2015.02.032
卷: 13, 页:275-282
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Applied
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: The interlayer inserted between active layer and ITO has been a key issue for improving electron extraction in inverted polymer solar cells (IPSCs), while the ideal interlayer for IPSCs has not been well developed. In this work, we presented a spontaneous vertical phase separation (SVPS) self-assembled bilayers structure with BenMelm-CI ionic liquid (IL) interfacial bottom layer and a photoactive top layer via a single spin-coated step of BenMelm-CI IL and organic donor-acceptor composite and achieved a PCE as high as 8% based on IPSCs with PTB7 as the donor. The presence of BenMelm-CI IL reduces the work function of ITO and leads to a better energy-level matching for efficient charge-transfer. The driving force of SVPS selfassembled structure is from the relative surface energy difference between organic materials and BenMelm-CI ILs, together with their interactions with the substrates. This self-assembled process procedure pave the way to simplify the manufacturing of low-cost and large-area organic electronic devices. (C) 2015 Elsevier Ltd. All rights reserved.
关键词[WOS]: BUFFER LAYER ;  ACCEPTOR
语种: 英语
WOS记录号: WOS:000358414700028
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146415
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Fu, Ping,Huang, Linquan,Yu, Wei,et al. Efficiency improved for inverted polymer solar cells with electrostatically self-assembled BenMelm-CI ionic liquid layer as cathode interface layer[J]. NANO ENERGY,2015,13:275-282.
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