ICCAS OpenIR
High-performance dye-sensitized solar cells based on solvent-free electrolytes produced from eutectic melts
Bai, Yu1; Cao, Yiming1; Zhang, Jing1; Wang, Mingkui2; Li, Renzhi1; Wang, Peng1; Zakeeruddin, Shaik M.2; Graetzel, Michael2
2008-08-01
Source PublicationNATURE MATERIALS
ISSN1476-1122
Volume7Issue:8Pages:626-630
AbstractLow-cost excitonic solar cells based on organic optoelectronic materials are receiving an ever-increasing amount of attention as potential alternatives to traditional inorganic photovoltaic devices. In this rapidly developing field, the dye-sensitized solar cell(1) (DSC) has achieved so far the highest validated efficiency of 11.1% (ref. 2) and remarkable stability(3). However, the cells with the best performance use volatile solvents in their electrolytes, which may be prohibitive for outdoor solar panels in view of the need for robust encapsulation. Solvent-free room-temperature ionic liquids(4-11) have been pursued as an attractive solution to this dilemma, and device efficiencies of over 7% were achieved by using some low-viscosity formulations containing 1-ethyl-3-methylimidazolium thiocyanate(8), selenocyanate(9), tricyanomethide(10) or tetracyanoborate(11). Unfortunately, apart from tetracyanoborate, all of these low-viscosity melts proved to be unstable under prolonged thermal stress and light soaking. Here, we introduce the concept of using eutectic melts to produce solvent-free liquid redox electrolytes. Using a ternary melt in conjunction with a nanocrystalline titania film and the amphiphilic heteroleptic ruthenium complex Z907Na (ref. 10) as a sensitizer, we reach excellent stability and an unprecedented efficiency of 8.2% under air-mass 1.5 global illumination. Our results are of importance to realize large-scale outdoor applications of mesoscopic DSCs.
DOI10.1038/nmat2224
Indexed BySCI
Language英语
WOS IDWOS:000257892200020
PublisherNATURE PUBLISHING GROUP
Citation statistics
Cited Times:525[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63008
Collection中国科学院化学研究所
Corresponding AuthorBai, Yu
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Swiss Fed Inst Technol, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
Recommended Citation
GB/T 7714
Bai, Yu,Cao, Yiming,Zhang, Jing,et al. High-performance dye-sensitized solar cells based on solvent-free electrolytes produced from eutectic melts[J]. NATURE MATERIALS,2008,7(8):626-630.
APA Bai, Yu.,Cao, Yiming.,Zhang, Jing.,Wang, Mingkui.,Li, Renzhi.,...&Graetzel, Michael.(2008).High-performance dye-sensitized solar cells based on solvent-free electrolytes produced from eutectic melts.NATURE MATERIALS,7(8),626-630.
MLA Bai, Yu,et al."High-performance dye-sensitized solar cells based on solvent-free electrolytes produced from eutectic melts".NATURE MATERIALS 7.8(2008):626-630.
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