Graphene-based counter electrode for dye-sensitized solar cells

Zhang, D.W.; Li, X.D.; Li, H.B.; Chen, S.; Sun, Zhenrong; Yin, X.J.; Huang, Sumei

doi:10.1016/j.carbon.2011.08.005

Cited by 407 publications

(227 citation statements)

References 35 publications

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“…In previous works, carbon materials and organic polymers were proposed to replace Pt as CE catalysts [8][9][10][11][12]. Then, several inorganic compounds were intro-duced into DSCs as CE catalysts, such as NiN, CoS and NiS [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Evaluation of Low-cost Cu2ZnSn(S,Se)4 Counter Electrodes for Dye-sensitized Solar Cells

Shen

Zhang

et al. 2013

Nano-Micro Lett.

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Abstract:We explore a simple and eco-friendly approach for preparing CZTS powders and a screen-printing process for Cu2ZnSn(S,Se)4 (CZTSSe) counter electrodes (CEs) in dye-sensitized solar cells (DSCs). Cu2ZnSnS4 (CZTS) nanoparticles have been synthesized via a hydrazine-free solvothermal approach without the assistance of organic ligands. CZTS has been prepared by directly drop-casting the CZTS ink on the cleaned FTO glass, while CZTSSe CEs have been fabricated by screen-printing CZTS pastes, followed by post selenization using Se vapor obtained from elemental Se pellets. The crystal structure, composition and morphology of the as-deposited CZTS nanoparticles and CZTSSe electrodes are characterized by X-ray diffractometer, energy dispersive spectrometer, field emission scanning electron microscopy and transmission electron microscopy. The electrochemical properties of CZTS, CZTSSe and Pt CE based DSCs are examined and analyzed by electrochemical impedance spectroscopy. The prepared CZTS and CZTSSe CEs exhibit a cellular structure with high porosity. DSCs fabricated with CZTSSe CEs achieve a power conversion efficiency of 5.75% under AM 1.5 G illumination with an intensity of 100 mW/cm 2 , which is higher than that (3.22%) of the cell using the CZTS CE. The results demonstrate that the CZTSSe CE possesses good electrocatalytic activity for the reduction of charge carriers in electrolyte. The comprehensive CZTSSe CE process is cheap and scalable. It can make large-scale electro-catalytic film fabrication cost competitive for both energy harvesting and storage applications.

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Section: Introductionmentioning

confidence: 99%

Fabrication and Evaluation of Low-cost Cu2ZnSn(S,Se)4 Counter Electrodes for Dye-sensitized Solar Cells

Shen

Zhang

et al. 2013

Nano-Micro Lett.

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“…Similarly, ethyl cellulose was used both as a binder and a sacrificial agent [60,61]. The lowest charge transfer resistance value was observed at the decomposition temperature of 370 • C, at which the polymer residue weight fraction in the electrode was about 20% [61].…”

Section: Polymer-mediated Functionalizationmentioning

confidence: 99%

Recent Progress on the Synthesis of Graphene-Based Nanostructures as Counter Electrodes in DSSCs Based on Iodine/Iodide Electrolytes

Tasis

2017

Catalysts

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Graphene-based nanomaterials functionalized by different doping strategies have attracted great attention for energy conversion themes, due to their large specific surface area, high conductivity, and appreciable electrocatalytic properties. This mini-review presents an overview of the recent progress in the synthesis of graphene-based nanomaterials as counter electrodes for dye-sensitized solar cells based on iodine/iodide electrolytes, along with challenges and perspectives in this exciting field.

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“…Superior catalytic activity, flexible electrochemical performance, good conductivity, high active area, cheaper and greener synthesis and fabrication techniques, effective performance is expected from CE alternative to Pt in DSSC. Recently graphene and other carbon based composites, [37][38][39] 44,45 exhibited performance that is competitive to Pt. The research has led to large increasing number of publications.…”

Section: Introductionmentioning

confidence: 99%

A review on applications of Cu2ZnSnS4 as alternative counter electrodes in dye-sensitized solar cells

et al. 2018

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A contribution of counter electrode (CE) emphasis a great impact towards enhancement of a dye-sensitized solar cell's (DSSC) performance and Pt based CE sets a significant benchmark in this field. Owing to cost effective noble metal, less abundance and industrial large scale application purpose, an effective replacement for Pt is highly demanded. There are several approaches to improve the performance of a CE for enhancing the power conversion efficiency with a less costly and facile device. To address this issue, reasonable efforts execute to find out suitable replacement of Pt is becoming a challenge by keeping the same electrochemical properties of Pt in a cheaper and eco-friendlier manner. With this, cheaper element based quaternary chalcogenide, Cu2ZnSnS4 (CZTS) becomes a prominent alternative to Pt and used as a successful CE in DSSC also. This review presents brief discussion about the basic properties of CZTS including its synthesis strategy, physicochemical properties and morphology execution and ultimate application as an alternative Pt free CE for a low cost based enhanced DSSC device. It is therefore, imperative for engineering of CZTS material and optimization of the fabrication method for the improvement of DSSC performance.

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Graphene-based counter electrode for dye-sensitized solar cells

Cited by 407 publications

References 35 publications

Fabrication and Evaluation of Low-cost Cu2ZnSn(S,Se)4 Counter Electrodes for Dye-sensitized Solar Cells

Fabrication and Evaluation of Low-cost Cu2ZnSn(S,Se)4 Counter Electrodes for Dye-sensitized Solar Cells

Recent Progress on the Synthesis of Graphene-Based Nanostructures as Counter Electrodes in DSSCs Based on Iodine/Iodide Electrolytes

A review on applications of Cu2ZnSnS4 as alternative counter electrodes in dye-sensitized solar cells

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