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学科主题: 物理化学
题名: First application of bis(oxalate)borate ionic liquids (ILBOBs) in high-performance dye-sensitized solar cells
作者: Wang, Liang1;  Zhang, Hong1;  Ge, Rile2;  Wang, Chaolei1;  Guo, Wei1;  Shi, Yantao1;  Gao, Yanan2;  Ma, Tingli1, 3
通讯作者: 高艳安 ;  Tingli Ma
刊名: RSC ADVANCES
发表日期: 2013
DOI: 10.1039/c3ra41180j
卷: 3, 期:31, 页:12975-12980
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: 2
项目归属: 207
产权排名: 待补充
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
资助者: 2,3
研究领域[WOS]: Chemistry
英文摘要: A series of bis(oxalate) borate ionic liquids (ILBOBs) were developed for the first time as the necessary components of the electrolyte system for dye-sensitized solar cells (DSCs). It was found that the photovoltaic performances of DSCs were significantly improved by 26% to 45% with these ILBOBs in the organic solvent electrolytes. Systematic investigations were carried out to reveal the effects of the chain lengths of the quaternary ammonium BOB as well as the cations of the ILBOBs on the performances of the DSCs. Among them, the highest power conversion efficiency (PCE) was achieved by the DSC based on the electrolyte containing 1-ethyl-3-methylimidazolium bis(oxalate) borate (EmimBOB). Specifically, the addition of EmimBOB increased the short circuit current densities (J(sc)) from 11.87 mA cm(-2) to 15.99 mA cm(-2), and the open-circuit voltage (V-oc) from 0.721 V to 0.742 V, accompanied by a final 45% improvement of the overall PCE from 6.01% to 8.73% under AM 1.5, 100 mW cm(-2) illumination. As an ionic liquid, EmimBOB was also used to develop a solvent-free electrolyte system. Compared with the one containing pure 1-methyl-3-propylimidazolium iodide (PMII), the hybrid solvent-free electrolyte system based on the EmimBOB/PMII combination notably increased the PCE of the DSCs from 3.48% to 5.38%. Finally, using solvent-free electrolytes, the long-term stability of the DSC devices were remarkably improved.
关键词[WOS]: BIS(OXALATO)BORATE LIBOB ;  THERMAL-BEHAVIOR ;  TIO2 ;  ELECTROLYTES ;  PHOTOVOLTAGE ;  EFFICIENCY
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000321791200063
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119623
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.Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, China Ion Liquid Lab, Dalian, Peoples R China
3.Kyushu Inst Technol, Grad Sch Life Sci & Syst Engn, Kitakyushu, Fukuoka 8080196, Japan

Recommended Citation:
Wang, Liang,Zhang, Hong,Ge, Rile,et al. First application of bis(oxalate)borate ionic liquids (ILBOBs) in high-performance dye-sensitized solar cells[J]. RSC ADVANCES,2013,3(31):12975-12980.
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