ICCAS OpenIR
Enhance the optical absorptivity of nanocrystalline TiO(2) film with high molar extinction coefficient ruthenium sensitizers for high performance dye-sensitized solar cells
Gao, Feifei1; Wang, Yuan1,2; Shi, Dong1; Zhang, Jing1; Wang, Mingkui3; Jing, Xiaoyan2; Humphry-Baker, Robin3; Wang, Peng1; Zakeeruddin, Shaik M.3; Graetzel, Michael3
2008-08-13
Source PublicationJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
ISSN0002-7863
Volume130Issue:32Pages:10720-10728
AbstractWe report two new heteroleptic polypyridyl ruthenium complexes, coded C101 and C102, with high molar extinction coefficients by extending the pi-conjugation of spectator ligands, with a motivation to enhance the optical absorptivity of mesoporous titania film and charge collection yield in a dye-sensitized solar cell. On the basis of this C101 sensitizer, several DSC benchmarks measured under the air mass 1.5 global sunlight have been reached. Along with an acetonitrile-based electrolyte, the C101 sensitizer has already achieved a strikingly high efficiency of 11.0-11.3%, even under a preliminary testing. More importantly, based on a low volatility 3-methoxypropionitrile electrolyte and a solvent-free ionic liquid electrolyte, cells have corresponding >9.0% and similar to 7.4% efficiencies retained over 95% of their initial performances after 1000 In full sunlight soaking at 60 degrees C. With the aid of electrical impedance measurements, we further disclose that, compared to the cell with an acetonitrile-based electrolyte, a dye-sensitized solar cell with an ionic liquid electrolyte shows a feature of much shorter effective electron diffusion lengths due to the lower electron diffusion coefficients and shorter electron lifetimes in the mesoporous titania film, explaining the photocurrent difference between these two type devices. This highlights the next necessary efforts to further improve the efficiency of cells with ionic liquid electrolytes, facilitating the large-scale production and application of flexible thin film mesoscopic solar cells.
DOI10.1021/ja801942j
Indexed BySCI ; IC
Language英语
WOS IDWOS:000258293800059
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:1132[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63078
Collection中国科学院化学研究所
Corresponding AuthorWang, Peng
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Harbin Engn Univ, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Peoples R China
3.Swiss Fed Inst Technol, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
Recommended Citation
GB/T 7714
Gao, Feifei,Wang, Yuan,Shi, Dong,et al. Enhance the optical absorptivity of nanocrystalline TiO(2) film with high molar extinction coefficient ruthenium sensitizers for high performance dye-sensitized solar cells[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2008,130(32):10720-10728.
APA Gao, Feifei.,Wang, Yuan.,Shi, Dong.,Zhang, Jing.,Wang, Mingkui.,...&Graetzel, Michael.(2008).Enhance the optical absorptivity of nanocrystalline TiO(2) film with high molar extinction coefficient ruthenium sensitizers for high performance dye-sensitized solar cells.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,130(32),10720-10728.
MLA Gao, Feifei,et al."Enhance the optical absorptivity of nanocrystalline TiO(2) film with high molar extinction coefficient ruthenium sensitizers for high performance dye-sensitized solar cells".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 130.32(2008):10720-10728.
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