ICCAS OpenIR
Effect of Sensitizer Adsorption Temperature on the Performance of Dye-Sensitized Solar Cells
Sauvage, Frederic1; Decoppet, Jean-David1; Zhang, Min2; Zakeeruddin, Shaik Mohammed1; Comte, Pascal1; Nazeeruddin, Mohammad1; Wang, Peng2; Graetzel, Michael1
2011-06-22
Source PublicationJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
ISSN0002-7863
Volume133Issue:24Pages:9304-9310
AbstractEmploying a mesoscopic titania photoanode whose bilayer structure was judiciously selected to fit the optoelectronic characteristics of the Ru-based heteroleptic complex Na-cis-Ru(4,4'-(5-hexyltiophen-2-yl)-2,2'-bipyridine)(4-carboxylic-acid-4'-carboxylate-2,2'-bipyridine)(thiocyanate)(2), coded as C101, we investigated the effect of temperature for dye adsorption on the photovoltaic performance of dye-sensitized solar cells (DSCs). We found a significant efficiency enhancement upon lowering the temperature applied during the sensitizer uptake from solution. When the dye adsorption was performed at 4 degrees C, the photovoltaic performance parameters measured under standard reporting conditions (AM1.5 G sunlight at 1000 W/m(2) intensity and 25 degrees C), i.e., the open circuit voltage (V(oc)), the short circuit photocurrent density (J(sc)), the fill factor (FF), and consequently the power conversion efficiency (PCE), improved in comparison to cells stained at 20 and 60 degrees C.Results from electrochemical impedance spectroscopy (EIS) and attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) show that the self-assembled layer of C101 formed at lower temperature impairs the back-electron transfer from the TiO(2) conduction band to the triiodide ions in the electrolyte more strongly than the film produced at 60 degrees C. Profiting from the favorable influence that the low-temperature dye uptake exerts on photovoltaic performance, we have realized DSCs showing a power conversion efficiency of 11.5%.
DOI10.1021/ja110541t
Indexed BySCI
Language英语
WOS IDWOS:000291915100043
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:125[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/71338
Collection中国科学院化学研究所
Corresponding AuthorSauvage, Frederic
Affiliation1.Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Sci & Ingn Chim, Stn 6, CH-1015 Lausanne, Switzerland
2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Sauvage, Frederic,Decoppet, Jean-David,Zhang, Min,et al. Effect of Sensitizer Adsorption Temperature on the Performance of Dye-Sensitized Solar Cells[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2011,133(24):9304-9310.
APA Sauvage, Frederic.,Decoppet, Jean-David.,Zhang, Min.,Zakeeruddin, Shaik Mohammed.,Comte, Pascal.,...&Graetzel, Michael.(2011).Effect of Sensitizer Adsorption Temperature on the Performance of Dye-Sensitized Solar Cells.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,133(24),9304-9310.
MLA Sauvage, Frederic,et al."Effect of Sensitizer Adsorption Temperature on the Performance of Dye-Sensitized Solar Cells".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 133.24(2011):9304-9310.
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