Characteristics of graphene embedded indium tin oxide (ITO-graphene-ITO) transparent conductive films

Kim, In Hwan; Kim, Daeyoon; Yin, Min; Han, Jae‐Hee; Kwon, Sang Jik; Cho, Eou‐Sik

doi:10.1080/15421406.2019.1596208

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…The transmittance with wavelengths ranging from 400 to 800 nm and sheet resistance were measured using a UV-visible spectrometer (Cary 100 UV-Vis, Agilent Technologies, Inc., Santa Clara, CA, USA) and 4-point probe (CMT-SR2000N, AIT Co., Ltd., Suwon, Gyeonggi-do, Korea), respectively. Compared to the ITO/PET substrate without a graphene layer, the 1-layer-graphene/ITO/PET or even the 2-layer-graphene/ITO/PET substrate showed similar transmittance but a trend towards a decrease in the sheet resistance with an increase in the number of graphene layers [ 32 ], despite the contact resistance between the ITO and graphene applied ( Table S2 ). These results confirm that the sheet resistances obtained were appropriately measured in this work.…”

Section: Methodsmentioning

confidence: 99%

Understanding of the Mechanism for Laser Ablation-Assisted Patterning of Graphene/ITO Double Layers: Role of Effective Thermal Energy Transfer

Ryu

Kim

et al. 2020

Micromachines

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Demand for the fabrication of high-performance, transparent electronic devices with improved electronic and mechanical properties is significantly increasing for various applications. In this context, it is essential to develop highly transparent and conductive electrodes for the realization of such devices. To this end, in this work, a chemical vapor deposition (CVD)-grown graphene was transferred to both glass and polyethylene terephthalate (PET) substrates that had been pre-coated with an indium tin oxide (ITO) layer and then subsequently patterned by using a laser-ablation method for a low-cost, simple, and high-throughput process. A comparison of the results of the laser ablation of such a graphene/ITO double layer with those of the ITO single-layered films reveals that a larger amount of effective thermal energy of the laser used is transferred in the lateral direction along the graphene upper layer in the graphene/ITO double-layered structure, attributable to the high thermal conductivity of graphene. The transferred thermal energy is expected to melt and evaporate the lower ITO layer at a relatively lower threshold energy of laser ablation. The transient analysis of the temperature profiles indicates that the graphene layers can act as both an effective thermal diffuser and converter for the planar heat transfer. Raman spectroscopy was used to investigate the graphite peak on the ITO layer where the graphene upper layer was selectively removed because of the incomplete heating and removal process for the ITO layer by the laterally transferred effective thermal energy of the laser beam. Our approach could have broad implications for designing highly transparent and conductive electrodes as well as a new way of nanoscale patterning for other optoelectronic-device applications using laser-ablation methods.

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Section: Methodsmentioning

confidence: 99%

Understanding of the Mechanism for Laser Ablation-Assisted Patterning of Graphene/ITO Double Layers: Role of Effective Thermal Energy Transfer

Ryu

Kim

et al. 2020

Micromachines

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“…Some studies suggested that not only is indium oxide sensitive to ethanol vapours [43], but its gas sensitivity can also be enhanced significantly when it is used in composites along with other materials such as metals oxides [44], transition metal dichalcogenides [45] or different doped metals [46,47]. Previous studies on developing and utilizing a composition of indium to graphene used synthesis methods including hydrothermal reaction [48], direct laser writing (DLW) [49], chemical vapor deposition (CVD) [50,51] to grow graphene over an indium tin oxide electrode; however, those methods suffer from problems such as complicated operation, time consumption and difficult pre-synthesis [49]. Gunasekaran and his co-workers suggested the direct electrochemical reduction in graphene oxide on the surface of indium tin oxide-coated glass electrode [52] and Lei et al, suggested using ascorbic acid to reduce the graphene oxide in the presence of previously synthesised In 2 O 3 nanoparticles [53].…”

Section: Introductionmentioning

confidence: 99%

Introducing Graphene–Indium Oxide Electrochemical Sensor for Detecting Ethanol in Aqueous Samples with CCD-RSM Optimization

Boroujerdi

Paul

2022

Chemosensors

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There is significant demand for portable sensors that can deliver selective and sensitive measurement of ethanol on-site. Such sensors have application across many industries, including clinical and forensic work as well as agricultural and environmental analysis. Here, we report a new graphene–indium oxide electrochemical sensor for the determination of ethanol in aqueous samples. Graphene layers were functionalised by anchoring In2O3 to its surface and the developed composite was used as a selective electrochemical sensor for sensing ethanol through cyclic voltammetry. The detection limit of the sensor was 0.068 mol/L and it showed a linear response to increasing ethanol in the environment up to 1.2 mol/L. The most significant parameters involved and their interactions in the response of the sensor and optimization procedures were studied using a four-factor central composite design (CCD) combined with response surface modelling (RSM). The sensor was applied in the detection of ethanol in authentic samples.

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Synthesis and physicochemical properties of graphene incorporated indium tin oxide nanocomposites for optoelectronic device applications

Ravichandran,

Sahadevan,

Sivaprakash

et al. 2024

Materials Science and Engineering: B

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Characteristics of graphene embedded indium tin oxide (ITO-graphene-ITO) transparent conductive films

Cited by 6 publications

References 16 publications

Understanding of the Mechanism for Laser Ablation-Assisted Patterning of Graphene/ITO Double Layers: Role of Effective Thermal Energy Transfer

Understanding of the Mechanism for Laser Ablation-Assisted Patterning of Graphene/ITO Double Layers: Role of Effective Thermal Energy Transfer

Introducing Graphene–Indium Oxide Electrochemical Sensor for Detecting Ethanol in Aqueous Samples with CCD-RSM Optimization

Synthesis and physicochemical properties of graphene incorporated indium tin oxide nanocomposites for optoelectronic device applications

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