Hydrothermal synthesis of graphene flake embedded nanosheet-like molybdenum sulfide hybrids as counter electrode catalysts for dye-sensitized solar cells

Lin, Jeng‐Yu; Yue, Gentian; Tai, Sheng-Yen; Xiao, Yaoming; Cheng, Ho-Ming; Wang, Fuming; Wu, Jihuai

doi:10.1016/j.matchemphys.2013.08.010

Cited by 50 publications

(21 citation statements)

References 33 publications

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“…Benefiting from remarkable advantages of large specific surface area (2630 m 2 g À1 ), excellent electrical conductivity (10 6 S cm À1 ), high charge mobility (200000 cm 2 V À1 s À1 ), good chemical and environmental stability [6][7][8], graphene materials have been demonstrated to be a new class of outstanding candidate for electrochemical power source fields. As a result, they have been widely explored for applications in energy-related areas, including solar cells [9,10], LIBs [11][12][13], supercapacitors [14,15], etc. More importantly, graphene materials have shown great promises to improve the performance of the aforementioned energy systems, which satisfies the urgent demand for renewable energy production and efficient energy storage in modern society [14].…”

Section: Introductionmentioning

confidence: 99%

Oxygen-containing Functional Groups Enhancing Electrochemical Performance of Porous Reduced Graphene Oxide Cathode in Lithium Ion Batteries

Xiong

Shan

et al. 2015

Electrochimica Acta

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Section: Introductionmentioning

confidence: 99%

Oxygen-containing Functional Groups Enhancing Electrochemical Performance of Porous Reduced Graphene Oxide Cathode in Lithium Ion Batteries

Xiong

Shan

et al. 2015

Electrochimica Acta

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“…Lin et al investigated graphene flake (GF) embedded into MoS 2 nanosheet through hydrothermal route . Such MoS 2 /GF hybrid composite is utilized as CE in Pt‐free CE.…”

Section: Tmdcs As Counter Electrodes In Scsmentioning

confidence: 98%

“…B, J ‐ V curve of DSSC with different counter electrodes (CEs) of Pt, MoS 2 , GF, and MoS 2 /GF. C, A schematic diagram of synergistic effect for MoS 2 /GF hybrid on its electrocatalytic activity [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Tmdcs As Counter Electrodes In Scsmentioning

confidence: 99%

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Recent advancement in the performance of solar cells by incorporating transition metal dichalcogenides as counter electrode and photoabsorber

et al. 2019

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Summary Two‐dimensional (2D) transition metal dichalcogenides (TMDCs) architectures have revealed fascinating characteristics such as direct band gap, strong light absorption, and novel electrochemical properties, which make them promising materials for photovoltaic applications. The review focuses on (1) the study of electrochemical and photovoltaic properties of TMDCs thereby using them as counter electrodes (CEs) in dye‐sensitized solar cells (DSSCs) and (2) analyzing the light absorption and charge transport performance of TMDCs heterostructures with different 3D materials. We have further investigated different materials in combination with TMDCs such as reduced graphene oxide nanocomposite, graphene flakes, and molybdenum as CEs in DSSCs. Conventionally, platinum (Pt) is used as a CE material for DSSCs that displays excellent catalytic activity and high electrical conductivity but due to the high cost and scarcity of Pt limits the large‐scale production. Therefore, the excellent electrochemical properties and cost‐effectiveness of TMDCs make them promising contender to replace Pt as CEs in DSSCs. Additionally, the photovoltaic properties of TMDCs and their heterostructures with various materials such as silicon, gallium arsenide, indium phosphate, tungsten disulfide, boron nitride, and organic polymers are reviewed. TMDCs are also investigated as hole transport layer (HTL) and electron transport layer (ETL) with various organic polymers such as P3HT, PCBM, PEDOT:PSS, PTB7, and spiro‐OmeTAD for organic and perovskite‐based solar cells (SCs). The utilization of TMDCs as CEs and photoabsorbers enhances the power conversion efficiency (PCE) to generate cost‐effective and high performance SC devices that can be exploit for future technological applications.

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“…Of particular interest are counter electrodes formed from MoS2/Graphene hybrids. Most of the work done using MoS2 for counter electrodes has followed a synthetic route for the production of material which is then combined with pristine graphene [34,35]. Alternatively, reduced Graphene Oxide has been used with the functional groups on Graphene Oxide acting as a site for synthesizing the MoS2 [36,37].…”

Section: Introductionmentioning

confidence: 99%

Graphene-MoS₂nanosheet composites as electrodes for dye sensitised solar cells

Lynch

Khan

Harvey

et al. 2016

Mater. Res. Express

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Replacing the platinum counter electrode in Dye-Senstized Solar Cells with a cheaper material has attracted much attention recently. Graphene, graphene oxide and other 2-dimensional materials have received significant attention. Here we demonstrate the dependence of device parameters on the thickness of counter electrodes formed from porous, disordered arrays of liquid-exfoliated graphene nanosheets. We find device efficiency to saturate at a counter electrode thickness of ~400 nm. Such optimised counter electrodes can be improved further by adding MoS2 nanosheets to the graphene electrode. By measuring the dependence of device parameters on the composition of mixed graphene/MoS2 electrodes, we show that adding ~10 wt% MoS2 nanosheets to a graphene counter electrode improves performance and can result in a cell efficiency of ~95% of that achieved using a platinum electrode. This data is consistent with the MoS2 nanosheets being somewhat better catalysts than the graphene nanosheets. However, the graphene nanosheets are required to render the electrode conductive. More detailed analysis suggests the better performance of the MoS2 nanosheets to be mostly down to their smaller size.

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Hydrothermal synthesis of graphene flake embedded nanosheet-like molybdenum sulfide hybrids as counter electrode catalysts for dye-sensitized solar cells

Cited by 50 publications

References 33 publications

Oxygen-containing Functional Groups Enhancing Electrochemical Performance of Porous Reduced Graphene Oxide Cathode in Lithium Ion Batteries

Oxygen-containing Functional Groups Enhancing Electrochemical Performance of Porous Reduced Graphene Oxide Cathode in Lithium Ion Batteries

Recent advancement in the performance of solar cells by incorporating transition metal dichalcogenides as counter electrode and photoabsorber

Graphene-MoS₂nanosheet composites as electrodes for dye sensitised solar cells

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Hydrothermal synthesis of graphene flake embedded nanosheet-like molybdenum sulfide hybrids as counter electrode catalysts for dye-sensitized solar cells

Cited by 50 publications

References 33 publications

Oxygen-containing Functional Groups Enhancing Electrochemical Performance of Porous Reduced Graphene Oxide Cathode in Lithium Ion Batteries

Oxygen-containing Functional Groups Enhancing Electrochemical Performance of Porous Reduced Graphene Oxide Cathode in Lithium Ion Batteries

Recent advancement in the performance of solar cells by incorporating transition metal dichalcogenides as counter electrode and photoabsorber

Graphene-MoS2nanosheet composites as electrodes for dye sensitised solar cells

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Product

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Graphene-MoS₂nanosheet composites as electrodes for dye sensitised solar cells