Recent Applications of Graphene in Dye-sensitized Solar Cells

Zhang, Ye; Li, Hao; Kuo, Lidia; Dong, Pei; Yan, Feng

doi:10.1016/j.cocis.2015.11.002

Cited by 34 publications

(10 citation statements)

References 108 publications

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“…Graphene is a highly recommended material for TCFs due to its excellent electrical conductivity and optical transmittance in the visible and near‐infrared (NIR) region . Moreover, graphene exhibits high flexibility and outstanding chemical stability .…”

Section: Introductionmentioning

confidence: 99%

Graphene‐Based Transparent Conductive Films: Material Systems, Preparation and Applications

2018

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The rising demands of optoelectronic devices, such as flexibility, stretchability, and energy efficiency, urgently require alternative transparent conductive films (TCFs) for indium tin oxide. Among all the candidates such as carbon nanomaterials, metal nanomaterials, conductive polymers, and other nanocomposites, graphene is highly promising because of its distinct properties, such as outstanding conductivity, impressive optical transparency, remarkable mechanical flexibility, and chemical/thermal stability. However, the practical application of graphene‐based TCFs (G‐TCFs) is still challenging due to the difficulty for preparing large‐area crystalline graphene with few defects for TCFs. Many efforts have been made to solve these problems, and several kinds of optoelectronic devices have been successfully fabricated with G‐TCFs. This review presents the recent development in this area made by the authors and others, including the material systems and synthetic strategies of G‐TCFs, as well as their applications as transparent electrodes in optoelectronic devices such as field effect transistors, organic light‐emitting diodes, organic solar cells, and other devices. The current major challenges in this area and the potential practical solutions are identified.

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Section: Introductionmentioning

confidence: 99%

Graphene‐Based Transparent Conductive Films: Material Systems, Preparation and Applications

2018

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“…New knowledge on the principles of 3D structuring of graphene will open up new practical applications for such materials as adsorbents, catalysts and electrode material in electric power devices like fuel cells (Mao et al 2015;Zhu et al 2018), supercapacitors (Li et al 2015(Li et al , 2018Wang and Xu 2016;Ping et al 2017), Li-ion batteries (Cai et al 2017;Cheng et al 2017) and photovoltaic cells (Ma and Chen 2015;Han et al 2014;Zhang et al 2013;Fan et al 2012;Yu et al 2015). Moreover, porous 3D graphene may improve the performance of solar cells (Acika and Darling 2016; Zhang et al 2015;Roy-Mayhew and Aksay 2014;Lim et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Highly effective three-dimensional functionalization of graphite to graphene by wet chemical exfoliation methods

et al. 2019

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The paper presents results on the three-dimensional (3D) functionalization of graphite-originated flakes to graphene by carbonization of specific precursors in the presence of a hard template. In situ precipitated Na 2 CO 3 nanocrystals or CaCO 3 nano-powder were used as a hard template. Graphene flakes were obtained by a wet chemistry exfoliation of commercial graphite. The flakes were premixed with a non-specific binder and the hard template and then carbonized at temperatures of 700 to 800 °C under the flow of nitrogen. The addition of a template allowed to increase the surface area up 287 m 2 /g for the Na 2 CO 3 template and 333 m 2 /g in the case of CaCO 3 , while the surface area of 25 m 2 /g was noted for the raw graphite. Several instrumental methods were applied for the characterization of the obtained 3D-graphene materials: combustion elemental analysis, SEM, HRTEM, XPS, Raman spectroscopy and low-temperature adsorption of nitrogen. The effect of the addition of a template and the carbonization temperature on the surface area of the 3D structured graphene was demonstrated. The wet-chemistry method led to an efficient deglomeration of graphene flakes to double (DLG) and few (FLG) layered graphene. The proposed method is inexpensive.

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“…A super counter electrode material must meet the requirement of excellent conductive and catalytic properties. Pt deposited onto a transparent conducting oxide (FTO) glass has been widely used as counter electrode in DSSCs due to its excellent chemical stability, electro‐catalytic activity and electrical conductivity . However, the high price of Pt limited its industrial application in counter electrodes .…”

Section: Introductionmentioning

confidence: 99%

One‐pot Synthesis of CZTS/RGO Composite Material and its Electro‐Catalytic Performance towards Triiodide Reduction in Dye‐Sensitized Solar Cells

Wei

Zhan

et al. 2019

ChemistrySelect

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The composite material of quaternary kesterite type Cu 2 ZnSnS 4 and reduced graphene oxide (CZTS/RGO) was successfully synthesized by a one-pot hydrothermal synthesis method. When applied as counter electrode materials for dye-sensitized solar cells, it shows better electro-catalytic performance towards reduction of triiodide. The DSSCs based on CZTS/RGO counter electrode shows a maximum solar-to-electrical power efficiency of 3.08%, which is much higher than that of pure CZTS counter electrode (1.41%) and pure RGO counter electrode (1.55%) prepared under the same conditions. The weight percent of GO to CZTS raw material used to synthesize CZTS/RGO is an important factors to affect the photovoltaic performance of DSSCs based on CZTS/RGO counter electrode. It is believed that as-synthesized CZTS/RGO can potentially be used as alternative counter electrode materials to replace the expensive Pt counter electrode, and this one-pot synthetic method will be helpful for exploring facile synthetic route of low-cost and efficient CZTS based composite counter electrode materials.[a] Dr.

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Recent Applications of Graphene in Dye-sensitized Solar Cells

Cited by 34 publications

References 108 publications

Graphene‐Based Transparent Conductive Films: Material Systems, Preparation and Applications

Graphene‐Based Transparent Conductive Films: Material Systems, Preparation and Applications

Highly effective three-dimensional functionalization of graphite to graphene by wet chemical exfoliation methods

One‐pot Synthesis of CZTS/RGO Composite Material and its Electro‐Catalytic Performance towards Triiodide Reduction in Dye‐Sensitized Solar Cells

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