Application of carbon materials as counter electrodes of dye-sensitized solar cells

Huang, Zhen; Liu, Xizhe; Li, Kexin; Li, Dongmei; Luo, Yanhong; Li, Hong; Song, Wenbo; Chen, Liquan; Meng, Qingbo

doi:10.1016/j.elecom.2006.10.028

Cited by 465 publications

(228 citation statements)

References 14 publications

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“…Scanning from Ϫ0.5 to 0.75 V vs Ag/Ag ϩ (for ferrocene, the redox potential is 55 Ϯ 5 mV on all samples) two pairs of peaks are observed for both materials, similar to what has been reported for comparable systems in the literature. 14,22,37 Although the exact charge-transfer mechanisms are not fully understood, literature attributes peaks A ox and A red to the oxidation and reduction of I 2 /I 3 Ϫ and peaks …”

Section: Resultsmentioning

confidence: 99%

Functionalized Graphene as a Catalytic Counter Electrode in Dye-Sensitized Solar Cells

et al. 2010

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When applied on the counter electrode of a dye-sensitized solar cell, functionalized graphene sheets with oxygen-containing sites perform comparably to platinum (conversion efficiencies of 5.0 and 5.5%, respectively, at 100 mW cm ؊2 AM1.5G simulated light). To interpret the catalytic activity of functionalized graphene sheets toward the reduction of triiodide, we propose a new electrochemical impedance spectroscopy equivalent circuit that matches the observed spectra features to the appropriate phenomena. Using cyclic voltammetry, we also show that tuning our material by increasing the amount of oxygen-containing functional groups can improve its apparent catalytic activity. Furthermore, we demonstrate that a functionalized graphene sheet based ink can serve as a catalytic, flexible, electrically conductive counter electrode material.

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Section: Resultsmentioning

confidence: 99%

Functionalized Graphene as a Catalytic Counter Electrode in Dye-Sensitized Solar Cells

et al. 2010

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“…It is observed that there are two anodic peaks in the anodic sweep and two cathodic peaks in the cathodic sweep, which were described in detail elsewhere. 25,26 The shapes of the curves are similar and the anodic and cathodic peak heights and areas increase along with the mesh number. We believe that the Ti mesh with larger mesh number could provide larger surface area for the platinum deposition, and hence the catalytic activity of Pt toward the reduction in I − / I 3 − redox couple is enhanced.…”

Section: Resultsmentioning

confidence: 64%

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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“…그 외에 저가의 carbon, 혹은 PEDOT, CNT, Graphene 등의 재료들이 사용되며 [11][12][13][14]. 각 재료들에 따른 연구가 진행되고 있다 [15][16][17][18][19][20][21][22]. Pt 상대전극의 형성 방법은 Pt paste나 H2PtCl6의 열분해법, 전기 도금 및 금속 증착법이 사 용되며 [23][24][25][26], 형성 방법에 따라 특성이 달리 나타 난다 [27][28][29].…”

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DSSCs Efficiency by Tape Casting Pt Counter Electrode and Different Thickness Between Two Substrates

Kwon¹,

Yang²,

Zhou³

2013

Journal of the Korean Institute of Electrical and Electronic Ma

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Application of carbon materials as counter electrodes of dye-sensitized solar cells

Cited by 465 publications

References 14 publications

Functionalized Graphene as a Catalytic Counter Electrode in Dye-Sensitized Solar Cells

Functionalized Graphene as a Catalytic Counter Electrode in Dye-Sensitized Solar Cells

Three-dimensional double deck meshlike dye-sensitized solar cells

DSSCs Efficiency by Tape Casting Pt Counter Electrode and Different Thickness Between Two Substrates

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