Facile and highly efficient preparation of semi-transparent, patterned and large-sized reduced graphene oxide films by electrochemical reduction on indium tin oxide glass surface

2019 ◽  
Vol 692 ◽  
pp. 137626 ◽  
Author(s):  
Xin Peng ◽  
Yuqing Wu ◽  
Nan Chen ◽  
Zhongcheng Zhu ◽  
Jiaqi Liu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Reduction ◽  
Reduced Graphene Oxide ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Glass Surface ◽  
Oxide Films ◽  
Oxide Glass ◽  
Reduced Graphene ◽  
Indium Tin Oxide Glass

Graphene Based Transparent Conductive Electrode

2012 ◽  
Vol 468-471 ◽  
pp. 1823-1826 ◽  
Author(s):  
Ya Nan Wang ◽  
Peng Fei Gu ◽  
Jia Jia Cao ◽  
Tian Quan Lv ◽  
Tie Qiang Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Sheet Resistance ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Oxide Films ◽  
Good Alternative ◽  
Transparent Conductor ◽  
Transparent Conductive Electrode ◽  
Reduced Graphene

As indium tin oxide (ITO) can not meet the demands of many devices due to its fragility, graphene seems to be a good alternative for transparent conductor purpose. Here we employ two methods to prepare graphene oxide films, and then process them with hydroiodic acid (HI) for reduction, aiming to get an optimized scheme and higher film quality. Finally the reduced graphene oxide films with transmittance of 70~80% at 550nm show sheet resistance of <10kΩ, which are good enough for transparent conductor uses. This study portends a promising future in this field.

scholarly journals Electrochemical Impedance Characterization of Cell Growth on Reduced Graphene Oxide–Gold Nanoparticles Electrodeposited on Indium Tin Oxide Electrodes

2019 ◽  
Vol 9 (2) ◽  
pp. 326 ◽  
Author(s):  
Somasekhar Chinnadayyala ◽  
Jinsoo Park ◽  
Yonghyun Choi ◽  
Jae-Hee Han ◽  
Ajay Yagati ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Cell Growth ◽  
Reduced Graphene Oxide ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Electrochemical Impedance ◽  
Hek293 Cells ◽  
Ito Electrode ◽  
Reduced Graphene

The improved binding ability of graphene–nanoparticle composites to proteins or molecules can be utilized to develop new cell-based assays. In this study, we fabricated reduced graphene oxide–gold nanoparticles (rGO-AuNP) electrodeposited onto a transparent indium tin oxide (ITO) electrode and investigated the feasibility of the electrochemical impedance monitoring of cell growth. The electrodeposition of rGO–AuNP on the ITO was optically and electrochemically characterized in comparison to bare, rGO-, and AuNP-deposited electrodes. The cell growth on the rGO–AuNP/ITO electrode was analyzed via electrochemical impedance measurement together with the microscopic observation of HEK293 cells transfected with a green fluorescent protein expression vector. The results showed that rGO–AuNP was biocompatible and induced an increase in cell adherence to the electrode when compared to the bare, AuNP-, or rGO-deposited ITO electrode. At 54 h cultivation, the average and standard deviation of the saturated normalized impedance magnitude of the rGO–AuNP/ITO electrode was 3.44 ± 0.16, while the value of the bare, AuNP-, and rGO-deposited ITO electrode was 2.48 ± 0.15, 2.61 ± 0.18, and 3.01 ± 0.25, respectively. The higher saturated value of the cell impedance indicates that the impedimetric cell-based assay has a broader measurement range. Thus, the rGO–AuNP/ITO electrode can be utilized for label-free and real-time impedimetric cell-based assays with wider dynamic range.

scholarly journals Reduced graphene oxide–titania based platform for label-free biosensor

RSC Advances ◽  
2014 ◽  
Vol 4 (104) ◽  
pp. 60386-60396 ◽  
Author(s):  
Pratima R. Solanki ◽  
Saurabh Srivastava ◽  
Md. Azahar Ali ◽  
Rajesh Kr. Srivastava ◽  
Anchal Srivastava ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Vibrio Cholerae ◽  
Reduced Graphene Oxide ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Label Free ◽  
Oxide Electrode ◽  
Indium Tin Oxide Electrode ◽  
Anatase Titania ◽  
Reduced Graphene

A label-free biosensor has been fabricated using a reduced graphene oxide and anatase titania nanocomposite, deposited on indium tin oxide electrode for the specific recognition of Vibrio cholerae.

Reduced graphene oxide field-effect transistor with indium tin oxide extended gate for proton sensing

2014 ◽  
Vol 14 (5) ◽  
pp. 738-743 ◽  
Author(s):  
Thuy Kieu Truong ◽  
T.N.T. Nguyen ◽  
Tran Quang Trung ◽  
Il Yung Sohn ◽  
Duck-Jin Kim ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Reduced Graphene ◽  
Effect Transistor

scholarly journals The structure of thermally reduced graphene oxide

2020 ◽  
Vol 12 (2) ◽  
pp. 52
Author(s):  
Sabina Elżbieta Drewniak ◽  
Roksana Muzyka ◽  
Łukasz Drewniak
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Graphite Oxide ◽  
Indium Tin Oxide ◽  
Gas Sensing ◽  
Oxide Glass ◽  
Sensing Properties ◽  
Reduced Graphene ◽  
Gas Sensing Properties

The paper focused on the description of the reduced graphene oxide (rGO) structure. This material is obtained from a multistage production process. Each of these stages has a large impact on its structure (the number and type of functional groups, number of defect or the size of the flakes), and this in turn affects its properties. We would like to visualize the reduced graphene oxide, both using a diagram showing the atomic structure, as well as by imaging using scanning electron microscopy (SEM) and atomic force microscopy (AFM). In the paper, the elementary composition of selected elements and data obtained from X-ray photoelectron spectroscopy technique (XPS) will be also presented. Full Text: PDF ReferencesX. Peng, Y. Wu, N. Chen, Z. Zhu, J. Liu, and H. Wang, "Facile and highly efficient preparation of semi-transparent, patterned and large-sized reduced graphene oxide films by electrochemical reduction on indium tin oxide glass surface", Thin Solid Films 692, 137626 (2019). CrossRef L. Guo, Y.-W. Hao, P.-L. Li, J.-F. Song, R.-Z. Yang, X.-Y. Fu, S.-Y. Xie, J. Zhao and Y.-L. Zhang, "Improved NO2 Gas Sensing Properties of Graphene Oxide Reduced by Two-beam-laser Interference", Sci. Rep. 8, 1 (2018). CrossRef Y. S. Milovanov, V.A. Skryshevsky, , O.M. Slobodian, , D.O. Pustovyi, X.Tang, J.-P. Raskin, and A.N. Nazarov, "Influence of Gas Adsorption on the Impedance of Graphene Oxide", 2019 IEEE 39th Int. Conf. Electron. Nanotechnology, ELNANO 2019 - Proc. 8783946, CrossRef M. Reddeppa, B.-G. Park, , M.-D. Kim, K.R. Peta, N.D. Chinh, D. Kim, S.-G. Kim, and G. Murali, "H2, H2S gas sensing properties of rGO/GaN nanorods at room temperature: Effect of UV illumination", Sensors Actuators B. Chem. 264, (2018). CrossRef W. L. Xu, C. Ding, , M.-S. Niu, X.-Y. Yang, F. Zheng, J. Xiao, M. Zheng and X.-T. Hao, "Reduced graphene oxide assisted charge separation and serving as transport pathways in planar perovskite photodetector", Org. Electron. 81, 105663 (2020). CrossRef K. Sarkar, M. Hossain, P. Devi, K. D. M. Rao, and P. Kumar, "Self‐Powered and Broadband Photodetectors with GaN: Layered rGO Hybrid Heterojunction", Adv. Mater. Interfaces, 6, 20 (2019). CrossRef S. Pei and H. M. Cheng, "The reduction of graphene oxide", Carbon, 50, 9 (2012). CrossRef R. Muzyka, S. Drewniak, T. Pustelny, M. Chrubasik, and G. Gryglewicz, "Characterization of Graphite Oxide and Reduced Graphene Oxide Obtained from Different Graphite Precursors and Oxidized by Different Methods Using Raman Spectroscopy", Materials 11, 7 (2018). CrossRef M.-H. Tran and H. K. Jeong, "Influence of the Grain Size of Precursor Graphite on the Synthesis of Graphite Oxide", New Phys. Sae Mulli, 63, 2 (2013). CrossRef M.-H. Tran, C.-S. Yang, S. Yang, I.-J. Kim, and H. K. Jeong, "Influence of graphite size on the synthesis and reduction of graphite oxides", Curr. Appl. Phys., 14, SUPPL. 1 (2014). CrossRef N. Sharma, Y. Jain, , M. Kumari, R. Gupta, S.K. Sharma, K. Sachdev, "Synthesis and Characterization of Graphene Oxide (GO) and Reduced Graphene Oxide (rGO) for Gas Sensing Application", Macromol. Symp. 376, 1 (2017). CrossRef M. Wei, L. Qiao, , H. Zhang, S. Karakalos, K. Ma, Z. Fu, M.T. Swihart, G. Wu, "Engineering reduced graphene oxides with enhanced electrochemical properties through multiple-step reductions", Electrochim. Acta, 258 (2017). CrossRef S. Drewniak, M. Procek, R. Muzyka, T. Pustelny, "Comparison of Gas Sensing Properties of Reduced Graphene Oxide Obtained by Two Different Methods", Sensors, 20, 11 (2020). CrossRef L. Li, R.-D. Lv, S. -C. Liu, Z. D. Chen, J. Wang, Y.-G. Wang, W. Ren, "Using Reduced Graphene Oxide to Generate Q-Switched Pulses in Er-Doped Fiber Laser", Chinese Physics Letters, 35, 11 (2018) CrossRef

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