Effect of the thickness of the Pt film coated on a counter electrode on the performance of a dye-sensitized solar cell

The effects of the thickness and morphology of a Pt film coated on a counter electrode on the performance of a dye-sensitized solar cell (DSC) were investigated. Deposition of a Pt film ranging in thickness from 2 to 415 nm gradually decreases the sheet resistance of the counter electrode. No significant difference in the charge-transfer resistance at the electrolyte|counter electrode interface was observed for a Pt film thickness ranging from 25 to 415 nm. A high energy conversion efficiency of approximately 5% can be obtained for DSCs based on a counter electrode with a very thin Pt film of 2 nm, as well as with a 415-nm thick Pt film. These results are important for reducing production costs by reducing the required amount of expensive platinum.

[1]  Michael Grätzel,et al.  Investigation of Sensitizer Adsorption and the Influence of Protons on Current and Voltage of a Dye-Sensitized Nanocrystalline TiO2 Solar Cell , 2003 .

[2]  Josef Salbeck,et al.  Solid-state dye-sensitized mesoporous TiO2 solar cells with high photon-to-electron conversion efficiencies , 1998, Nature.

[3]  Arthur J. Frank,et al.  CHARGE RECOMBINATION IN DYE-SENSITIZED NANOCRYSTALLINE TIO2 SOLAR CELLS , 1997 .

[4]  Anders Hagfeldt,et al.  Investigation of influence of redox species on the interfacial energetics of a dye-sensitized nanoporous TiO2 solar cell , 1998 .

[5]  Andreas Georg,et al.  Diffusion in the electrolyte and charge-transfer reaction at the platinum electrode in dye-sensitized solar cells , 2001 .

[6]  P. Liska,et al.  Engineering of efficient panchromatic sensitizers for nanocrystalline TiO(2)-based solar cells. , 2001, Journal of the American Chemical Society.

[7]  M. Paoli,et al.  All-polymeric electrochromic and photoelectrochemical devices: new advances , 2001 .

[8]  T. Ma,et al.  Photoelectrochemical properties of TiO2 electrodes sensitized by porphyrin derivatives with different numbers of carboxyl groups , 2002 .

[9]  Tetsuya Kida,et al.  Preparation and properties of nanostructured TiO2 electrode by a polymer organic-medium screen-printing technique , 2003 .

[10]  A. Lever,et al.  Novel ruthenium sensitizers containing functionalized hybrid tetradentate ligands: synthesis, characterization, and INDO/S analysis. , 2002, Inorganic chemistry.

[11]  Joachim Luther,et al.  Modeling and interpretation of electrical impedance spectra of dye solar cells operated under open-circuit conditions , 2002 .

[12]  H. Pettersson,et al.  The Performance and Stability of Ambient Temperature Molten Salts for Solar Cell Applications , 1996 .

[13]  Frank Lenzmann,et al.  A Solid-State Dye-Sensitized Solar Cell Fabricated with Pressure-Treated P25−TiO2 and CuSCN: Analysis of Pore Filling and IV Characteristics , 2002 .

[14]  Anders Hagfeldt,et al.  Light-Induced Redox Reactions in Nanocrystalline Systems , 1995 .

[15]  Valery Shklover,et al.  Nanocrystalline titanium oxide electrodes for photovoltaic applications , 2005 .

[16]  P. Liska,et al.  Mediator Transport in Multilayer Nanocrystalline Photoelectrochemical Cell Configurations , 1999 .

[17]  Michael Grätzel,et al.  Low cost photovoltaic modules based on dye sensitized nanocrystalline titanium dioxide and carbon powder , 1996 .

[18]  M. Grätzel.  Mesoporous oxide junctions and nanostructured solar cells , 1999 .

[19]  Arthur J. Frank,et al.  Nonthermalized Electron Transport in Dye-Sensitized Nanocrystalline TiO2 Films: Transient Photocurrent and Random-Walk Modeling Studies , 2001 .

[20]  Mikio Kumagai,et al.  Application of Carbon Nanotubes to Counter Electrodes of Dye-sensitized Solar Cells , 2003 .

[21]  Takayuki Kitamura,et al.  Application of poly(3,4-ethylenedioxythiophene) to counter electrode in dye-sensitized solar cells , 2002 .

[22]  M. Grätzel.  Photoelectrochemical cells : Materials for clean energy , 2001 .

[23]  Espen Olsen,et al.  Dissolution of platinum in methoxy propionitrile containing LiI/I2 , 2000 .

[24]  Eiichi Abe,et al.  Effect of functional group on photochemical properties and photosensitization of TiO2 electrode sensitized by porphyrin derivatives , 2002 .

[25]  Michael Grätzel,et al.  Molecular engineering on semiconductor surfaces: design, synthesis, and application of new efficient amphiphilic ruthenium photosensitizers for nanocrystalline TiO2 solar cells , 2003 .

[26]  A. J. Frank,et al.  Influence of Electrical Potential Distribution, Charge Transport, and Recombination on the Photopotential and Photocurrent Conversion Efficiency of Dye-Sensitized Nanocrystalline TiO2 Solar Cells: A Study by Electrical Impedance and Optical Modulation Techniques , 2000 .

[27]  W. Maier,et al.  An Iodine/Triiodide Reduction Electrocatalyst for Aqueous and Organic Media , 1997 .

[28]  Hironori Arakawa,et al.  Photoelectrochemical Properties of a Porous Nb2O5 Electrode Sensitized by a Ruthenium Dye , 1998 .

[29]  Marco-A. De Paoli,et al.  Solid-State and Flexible Dye-Sensitized TiO2 Solar Cells: a Study by Electrochemical Impedance Spectroscopy , 2002 .

[30]  Satoshi Mikoshiba,et al.  Quasi-solid dye-sensitized solar cells containing chemically cross-linked gel: How to make gels with a small amount of gelator , 2002 .

[31]  Takayuki Kitamura,et al.  Improved solid-state dye solar cells with polypyrrole using a carbon-based counter electrode , 2001 .

[32]  M. Grätzel,et al.  A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films , 1991, Nature.

[33]  Mohammad Khaja Nazeeruddin,et al.  Conversion of light to electricity by cis-X2bis(2,2'-bipyridyl-4,4'-dicarboxylate)ruthenium(II) charge-transfer sensitizers (X = Cl-, Br-, I-, CN-, and SCN-) on nanocrystalline titanium dioxide electrodes , 1993 .