On the effect of Al2O3 blocking layer on the performance of dye solar cells with cobalt based electrolytes
作者： M. Liberatore , L. Burtone , T. M. Brown , A. Reale , A. Di Carlo
DOI: 10.1063/1.3126051
关键词: Cobalt 、 Dielectric spectroscopy 、 Deposition (law) 、 Electron 、 Redox 、 Chemistry 、 Energy conversion efficiency 、 Chemical engineering 、 Electrolyte 、 Mesoporous material 、 Inorganic chemistry
摘要: Dye solar cells with Co(III)/Co(II) redox mediators have been prepared. To obtain higher conversion efficiencies, the recombination between photoinjected electrons and Co(III) species was minimized by deposition of a thin Al2O3 blocking layer over mesoporous TiO2 surface. Measurements current-voltage characteristic curves, both under illumination in dark conditions, together electrochemical impedance spectroscopy demonstrate great effectiveness addition containing cobalt based electrolyte, substantially reducing current. The consequent power efficiency increase is more than double, passing from 0.94% to 2.48% 300 W m−2 AM 1.5 illumination.
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sci-hub.se 参考文章(26)
A. Di Carlo, A. Reale, T. M. Brown, M. Cecchetti, F. Giordano, G. Roma, M. Liberatore, V. Miruzzo, V. Conte, Smart Materials and Concepts for Photovoltaics: Dye Sensitized Solar Cells Smart Materials for Energy. pp. 97- 126 ,(2008) , 10.1007/978-1-4020-8796-7_8
J.L. Diot, J. Joseph, J.R. Martin, P. Clechet, pH dependence of the Si/SiO2 interface state density for EOS systems: Quasi-static and AC conductance methods Journal of Electroanalytical Chemistry. ,vol. 193, pp. 75- 88 ,(1985) , 10.1016/0022-0728(85)85053-1
Xin-Tong Zhang, Hong-Wu Liu, Taketo Taguchi, Qing-Bo Meng, Osamu Sato, Akira Fujishima, Slow interfacial charge recombination in solid-state dye-sensitized solar cell using Al2O3-coated nanoporous TiO2 films Solar Energy Materials and Solar Cells. ,vol. 81, pp. 197- 203 ,(2004) , 10.1016/J.SOLMAT.2003.11.005
S. G. Chen, S. Chappel, Y. Diamant, A. Zaban, Preparation of Nb2O5 Coated TiO2 Nanoporous Electrodes and Their Application in Dye-Sensitized Solar Cells Chemistry of Materials. ,vol. 13, pp. 4629- 4634 ,(2001) , 10.1021/CM010343B
Emilio Palomares, John N. Clifford, Saif A. Haque, Thierry Lutz, James R. Durrant, Control of Charge Recombination Dynamics in Dye Sensitized Solar Cells by the Use of Conformally Deposited Metal Oxide Blocking Layers Journal of the American Chemical Society. ,vol. 125, pp. 475- 482 ,(2003) , 10.1021/JA027945W
Shogo Nakade, Yohei Makimoto, Wataru Kubo, Takayuki Kitamura, Yuji Wada, Shozo Yanagida, Roles of Electrolytes on Charge Recombination in Dye-Sensitized TiO2 Solar Cells (2): The Case of Solar Cells Using Cobalt Complex Redox Couples Journal of Physical Chemistry B. ,vol. 109, pp. 3488- 3493 ,(2005) , 10.1021/JP046002D
Bin Li, Liduo Wang, Bonan Kang, Peng Wang, Yong Qiu, Review of recent progress in solid-state dye-sensitized solar cells Solar Energy Materials and Solar Cells. ,vol. 90, pp. 549- 573 ,(2006) , 10.1016/J.SOLMAT.2005.04.039
Brian O'Regan, Michael Grätzel, A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films Nature. ,vol. 353, pp. 737- 740 ,(1991) , 10.1038/353737A0
Jessica E. Kroeze, Narukuni Hirata, Sara Koops, Md. K. Nazeeruddin, Lukas Schmidt-Mende, Michael Grätzel, James R. Durrant, Alkyl Chain Barriers for Kinetic Optimization in Dye-Sensitized Solar Cells Journal of the American Chemical Society. ,vol. 128, pp. 16376- 16383 ,(2006) , 10.1021/JA065653F
Hervé Nusbaumer, Jacques-E. Moser, Shaik M. Zakeeruddin, Mohammad K. Nazeeruddin, Michael Grätzel, CoII(dbbip)22+ Complex Rivals Tri-iodide/Iodide Redox Mediator in Dye-Sensitized Photovoltaic Cells Journal of Physical Chemistry B. ,vol. 105, pp. 10461- 10464 ,(2001) , 10.1021/JP012075A