Low-Pt-loading acetylene-black cathode for high-efficient dye-sensitized solar cells

Cai, Fengshi; Liang, Jing; Tao, Zhanliang; Xu, Ruifeng

doi:10.1016/j.jpowsour.2007.10.096

Cited by 42 publications

(17 citation statements)

References 17 publications

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“…[276][277][278] A light-to-electricity energy conversion efficiency of 8.6% was achieved for the DSSCs with the Pt/acetylene black electrode. Wei et al employed polyvinylpyrrolidone (PVP)-capped Pt nanoparticles as a counter electrode in DSSCs to reduce the Pt-loading (4.89 mg cm -2 ) while maintaining a low charge-transfer resistance (5.66 O cm -2 ).…”

Section: Counter Electrodesmentioning

confidence: 97%

Solar Energy Materials

Gibson

Hagfeldt

2011

Energy Materials

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Section: Counter Electrodesmentioning

confidence: 97%

Solar Energy Materials

Gibson

Hagfeldt

2011

Energy Materials

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“…17 The role of Pt on the counter electrode is to catalyze the electrochemical reduction in the redox couple. An important parameter of the platinum-based counter electrode is the active surface area ͑A s ͒ of Pt because only the Pt atoms on the outside surface can contribute to the catalytic activity.…”

Section: Resultsmentioning

confidence: 99%

Three-dimensional double deck meshlike dye-sensitized solar cells

Wang

Yang

2010

Journal of Applied Physics

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A transmission line model for the optical simulation of multilayer structures and its application for oblique illumination of an organic solar cell with anisotropic extinction coefficient J. Appl. Phys. 110, 114506 (2011) Polymer solar cells with gold nanoclusters decorated multi-layer graphene as transparent electrode APL: Org. Electron. Photonics 4, 259 (2011) Polymer solar cells with gold nanoclusters decorated multi-layer graphene as transparent electrode Appl. Phys. Lett. 99, 223302 (2011) Cliff-like conduction band offset and KCN-induced recombination barrier enhancement at the CdS/Cu2ZnSnS4 thin-film solar cell heterojunction Appl. Phys. Lett. 99, 222105 (2011) Effect of a symmetry breaking layer on the open circuit voltage of conventional bulk-heterojunction solar cells Appl. Phys. Lett. 99, 213302 (2011) Additional information on J. Appl. Phys. In this paper, we develop a new type of three-dimensional dye-sensitized solar cells ͑3D DSSCs͒ with double deck cylindrical Ti meshes as the substrates. One of the Ti meshes is anodized to in situ synthesize the self-organized TiO 2 nanotube layer as the photoanode materials. Another Ti mesh is platinized through electrodeposition as the counter electrode. The morphologies of the electrodes are characterized by scanning electron microscopy. We investigate the effect of the mesh number on the 3D DSSCs with the dye adsorption, cyclic voltammetry, and electrochemical impedance spectroscopy. The results show that with the increase in the mesh number, the dye-loadings on the photoanode and the active surface area of Pt on the counter electrode are increased, while the diffusion of the electrolyte becomes more difficult due to the reduced diameter of the openings in the mesh. It has also been demonstrated that the performance of this 3D DSSC is independent of the incident solar beam angle due to its axial symmetrical structure. In the I-V measurement, the 3D DSSC based on the 90-mesh photoanode and the 120-mesh counter electrode shows the highest conversion efficiency of 5.5% under standard AM 1.5 sunlight. The problems of electrical insulator layer are discussed and further investigation is expected.

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“…It can be seen that the Pt loading ranges from 0 to 7.61 μg/cm 2 and the atomic ratios of Ni and Pt in the fi lms ( ) ( ) increase from EIS testing, two symmetric electrodes were firmly clipped together with I /I 3 electrolyte filling the inter-electrode space. EIS spectra were obtained at zero bias potential and 10 mV amplitude over the frequency range 0.01 10 5 Hz [7]. Cyclic voltammetry (CV) measurements were carried out in a N 2 -purged acetonitrile solution at a scan rate of 100 mV/s.…”

Section: Fabrication Of Ni 1-x Pt X Samplesmentioning

confidence: 99%

“…In recent years, dye-sensitized solar cells (DSCs) based on TiO 2 fi lms have received much attention due to their low-cost fabrication and relatively high conversion efficiency [5]. The photocathode of DSCs, which enables the transfer of electrons from the external circuit back to the redox electrolyte and catalyzes the reversible conversion of the iodide/triiodide (I /I 3 ) redox couple, usually utilizes platinum-based films [6,7]. Among various methods for the preparation of Pt films, thermal decomposition of H 2 PtCl 6 solution is the most common approach.…”

Section: Introductionmentioning

confidence: 99%

Ni1−xPtx (x=0–0.08) films as the photocathode of dye-sensitized solar cells with high efficiency

et al. 2009

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Films of Ni 1 x Pt x (x = 0, 0.02, 0.04, 0.06, and 0.08) have been prepared on fluorine-doped tin oxide-coated (FTO) glass substrates by a chemical plating method and used as the photocathode for dye-sensitized solar cells (DSCs). The Ni 0.94 Pt 0.06 film consisted of nanoparticles with a size of 4 6 nm and a Pt loading of 5.13 μg/cm 2 . The Ni 0.94 Pt 0.06 photocathode exhibited high catalytic performance toward triiodide reduction, high light refl ectance, and low charge-transfer resistance. The DSC assembled with the Ni 0.94 Pt 0.06 photocathode gave a short-circuit photocurrent density (J sc ) of 16.79 mA/cm 2 , an open-circuit photovoltage (V oc ) of 736 mV, and a fi ll factor (FF) of 66.4%, corresponding to an overall conversion effi ciency of 8.21% under standard AM 1.5 irradiation (100 mW/cm 2 ), which is higher than that for the DSC with a pure Pt photocathode obtained by conventional thermal decomposition. Furthermore, the DSC based on the Ni 0.94 Pt 0.06 photocathode showed good stability. The results indicate that Ni 0.94 Pt 0.06 fi lms are promising lowcost and high-performance photocathodes for use in DSCs.

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Low-Pt-loading acetylene-black cathode for high-efficient dye-sensitized solar cells

Cited by 42 publications

References 17 publications

Solar Energy Materials

Solar Energy Materials

Three-dimensional double deck meshlike dye-sensitized solar cells

Ni1−xPtx (x=0–0.08) films as the photocathode of dye-sensitized solar cells with high efficiency

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