Preparation and characterization of PEDOT:PSS/reduced graphene oxide–carbon nanotubes hybrid composites for transparent electrode applications

Mahakul, Prakash Chandra; Sa, Kadambinee; Das, Bamadev; Subramaniam, Balakumar; Saha, Sunirmal; Moharana, Bhaskar; Raiguru, Jagatpati; Dash, Sanjaya K.; Mukherjee, Jonaki; Mahanandia, Pitamber

doi:10.1007/s10853-017-0806-2

Cited by 51 publications

(24 citation statements)

References 53 publications

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“…Carbon allotropes with a cylindrical nanostructure have extraordinary physical properties such as high aspect ratio in the order of 10 8 , electrical conductivity of 10 7 to 10 8 S m −1 , thermal conductivity of 3300 W m −1 K −1 , Young's modulus of ≈1060 GPa and tensile strength of ≈200 GPa . Due to these features, hybrid material systems combining CNTs and graphene have been explored for the improvement of the properties of G‐TCFs .…”

Section: Graphene‐based Hybrid Materialsmentioning

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: Graphene‐based Hybrid Materialsmentioning

confidence: 99%

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

2018

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“…The conductivity of the PEDOT:PSS film can be enhanced by either adding organic solvents such as glycerol, sorbitol, ethyl glycol, dimethyl sulfoxide (DMSO), etc . or conducting fillers such as silver nanowire, graphene, reduced graphene oxide, etc. Conductivity of the PEDOT:PSS can also be enhanced by adding organic solvent through secondary doping.…”

Section: Introductionmentioning

confidence: 99%

Solution Processable PEDOT:PSS/Multiwalled Carbon Nanotube Composite Films for Flexible Electrode Applications

Jasna

Raman

Jayalekshmi

et al. 2018

Phys. Status Solidi A

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High‐performance flexible optoelectronic devices have great potential as active elements for flexible and wearable electronics. The authors report highly flexible conducting poly (3, 4‐ethylene dioxythiophene):polystyrene sulfonate/multiwalled carbon nanotubes (PEDOT:PSS/MWCNT) composite thin films synthesized by simple, cost effective rod‐coating technique. The effect of MWCNT on PEDOT:PSS matrix is analyzed by spin coating PEDOT:PSS/MWCNT composite on glass substrates with varying concentration (0–2 wt%) of MWCNT. Field emission scanning electron microscope (FE‐SEM) images confirm the uniform dispersion of MWCNT and formation of conducting path above 0.3 wt% of MWCNT. The conductivity of the spin coated films is increased from 1 Scm−1 to ≈20 Scm−1 on addition of 2 wt% of MWCNT. From UV‐Vis NIR spectra, the transparency of composite films in the visible range (at 550 nm) is found to decrease with respect to MWCNT loading. The PEDOT:PSS/MWCNT flexible electrode exhibit high electrical conductivity of 74 Scm−1 and high stability upon bending to a radius of curvature ≈9.6 mm. The features observed are an outcome of the interaction of MWCNT with PEDOT polymer as the back bone. These films are adhered to the substrate and the properties are stable upon bending the film for large number of cycles. To demonstrate the potential use of this composite film as an electrode, a thin film transistor is fabricated with PEDOT:PSS/MWCNT film as source and drain electrode. The device shows high field effect mobility of µsat = 1.16 cm2 V−1 s−1 with on/off ratio about 2.3 × 103. These favorable results make PEDOT:PSS/MWCNT conducting electrode as an excellent candidate for the next generation flexible electrodes realized by a facile solution process.

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“…Laser patterning of graphene is a well-established technique [165], and can be applied here as well, and oxygen-plasma can be used instead of chemical doping to increase wettability of the graphene layer, which increases the PCE [166]. Many other works on applications of graphene on polymer solar cells have been done, using it as an electrode layer [161,[166][167][168], including it in a hybrid-polymer layer [169,170] or as hybrid electrode [171][172][173][174]. Graphene has also been applied to dye sensitized solar cells, e.g., in counterelectrodes [175][176][177][178], nanocomposite matrices [179,180] and photoanodes [181][182][183].…”

Section: Applicationsmentioning

confidence: 99%

Review of fabrication methods of large-area transparent graphene electrodes for industry

Mustonen

Mackenzie

Lipsanen

2020

Front. Optoelectron.

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Graphene is a two-dimensional material showing excellent properties for utilization in transparent electrodes; it has low sheet resistance, high optical transmission and is flexible. Whereas the most common transparent electrode material, tin-doped indium-oxide (ITO) is brittle, less transparent and expensive, which limit its compatibility in flexible electronics as well as in low-cost devices. Here we review two large-area fabrication methods for graphene based transparent electrodes for industry: liquid exfoliation and low-pressure chemical vapor deposition (CVD). We discuss the basic methodologies behind the technologies with an emphasis on optical and electrical properties of recent results. State-of-the-art methods for liquid exfoliation have as a figure of merit an electrical and optical conductivity ratio of 43:5, slightly over the minimum required for industry of 35, while CVD reaches as high as 419.

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Preparation and characterization of PEDOT:PSS/reduced graphene oxide–carbon nanotubes hybrid composites for transparent electrode applications

Cited by 51 publications

References 53 publications

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

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

Solution Processable PEDOT:PSS/Multiwalled Carbon Nanotube Composite Films for Flexible Electrode Applications

Review of fabrication methods of large-area transparent graphene electrodes for industry

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