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Sarbajit Banerjee - One of the best experts on this subject based on the ideXlab platform.

  • Oriented Electrophoretic Deposition of GdOCl Nanoplatelets B
    The Journal of Physical Chemistry, 2013
    Co-Authors: Kenneth R. Kort, Sarbajit Banerjee
    Abstract:

    Electrophoretic Deposition has emerged as a versatile and precisely tunable approach for the rapid Deposition of conformal thin films of colloidal nanocrystals. The Electrophoretic Deposition of phosphor particles has assumed special significance in recent years as a commercially viable means toward the fabrication of large-area, ultrathin high-resolution emissive display screens. Here, we demonstrate that the anisotropic shape of colloidal ligand-passivated GdOCl nanoplatelets enables their assembly with remarkable substrate alignment and a high packing density upon Electrophoretic Deposition. GdOCl nanocrystals are promising candidates for phosphor applications given their low maximum phonon cutoff energy, robust chemical stability over prolonged periods of operation, and ability to promote efficacious phonon energy transfer to dopant ions. Potentiostatic Deposition of GdOCl nanoplatelets from cyclohexane dispersions allows the Deposition of individual nanoplatelets with their basal planes parallel to the electrode surface. Tuning the applied voltage and solution concentration allows control of film thickness, ranging up to several tens of micrometers. The high degree of particle alignment is attributed to anisotropic charge distribution and entrainment within electroosmotic flows established in the vicinity of the electrode surface. The oriented high-particle-density GdOCl nanoplatelet thin films are possible candidates for phosphor applications, which is illustrated by the green emission from a Tb-doped GdOCl thin film on indium tin oxide (ITO)-coated glass.

  • Oriented Electrophoretic Deposition of GdOCl nanoplatelets.
    The journal of physical chemistry. B, 2012
    Co-Authors: Kenneth R. Kort, Sarbajit Banerjee
    Abstract:

    Electrophoretic Deposition has emerged as a versatile and precisely tunable approach for the rapid Deposition of conformal thin films of colloidal nanocrystals. The Electrophoretic Deposition of ph...

Igor Zhitomirsky - One of the best experts on this subject based on the ideXlab platform.

  • Electrophoretic Deposition of linear polyethylenimine and composite films
    Surface Engineering, 2013
    Co-Authors: Y. Sun, M.s. Ata, Igor Zhitomirsky
    Abstract:

    Electrophoretic Deposition method has been developed for the electroDeposition of linear polyethylenimine (LPEI) films. The Deposition mechanism is based on the electrophoresis of protonated LPEI-H+, base generation at the cathode surface, charge neutralisation and formation of insoluble LPEI films. Quartz crystal microbalance data, coupled with the results of electron microscopy, showed that Deposition rate and film thickness can be varied and controlled by the variation of Deposition time and voltage. LPEI films provided corrosion protection of stainless steel substrates. LPEI was used for the dispersion, charging and Electrophoretic Deposition of TiO2, hydrotalcite and MnO2 particles and fabrication of composite films. Scanning electron microscopy and thermogravimetric analysis showed the formation of composite films, containing 45·4%TiO2, 53·1% hydrotalcite and 33·3%MnO2 in the LPEI matrix. The film thickness was varied in the range of 0·1–4 μm by variation of the Deposition time at a constant deposit...

  • Electrophoretic Deposition of TiO2 nanoparticles using organic dyes.
    Journal of colloid and interface science, 2011
    Co-Authors: Y. Sun, M.s. Ata, Igor Zhitomirsky
    Abstract:

    Abstract Electrophoretic Deposition method has been developed for the Deposition of TiO2 nanoparticles modified with organic dyes. Alizarin red, alizarin yellow and pyrocatechol violet dyes were used for the dispersion and charging of TiO2 in ethanol and anodic Electrophoretic Deposition of TiO2 films. The Deposition yield was varied by the variation of dye concentration in suspensions and Deposition time. Aurintricarboxylic acid dye was used for the Deposition of TiO2 from aqueous suspensions. It was found that thin films of pure aurintricarboxylic acid and composite aurintricarboxylic acid TiO2 films can be obtained. The Deposition yield was studied by quartz crystal microbalance. Dye film thickness was varied in the range of 0.1–2 μm by variation in the Deposition time at a constant voltage. The composition of the films and the amount of the deposited material can be varied by the variation of TiO2 and dye concentration in suspensions and Deposition time. The films were studied by Fourier transform infrared spectroscopy, thermogravimetric analysis, differential thermal analysis and electron microscopy. The Deposition mechanisms were discussed. The Electrophoretic Deposition method offers advantages for the fabrication of dye-sensitized TiO2 films.

  • Electrophoretic Deposition of hyaluronic acid and composite films for biomedical applications
    JOM, 2010
    Co-Authors: Igor Zhitomirsky
    Abstract:

    Hyaluronic acid (HYH) is a natural biopolymer, which has tremendous potential for various biomedical applications. Electrophoretic Deposition (EPD) methods have been developed for the fabrication of HYH films and composites. New methods for the immobilization of drugs and proteins have been utilized for the fabrication of organic composites. Electrophoretic Deposition enabled the fabrication of organic-inorganic composites containing bioceramics and bioglass in the HYH matrix. It was shown that the Deposition yield, microstructure, and composition of the films can be controlled. Potential applications of EPD for the surface modification of biomedical implants and fabrication of biosensors are highlighted.

  • Electrophoretic Deposition of manganese oxide films
    Surface Engineering, 2009
    Co-Authors: M. Cheong, Igor Zhitomirsky
    Abstract:

    Electrophoretic Deposition method has been developed for the fabrication of manganese oxide films for applications in electrochemical supercapacitors. Submicrometre particles of manganese oxide wer...

  • Electrophoretic Deposition of ceramic materials for fuel cell applications
    Journal of the European Ceramic Society, 2000
    Co-Authors: Igor Zhitomirsky, Anthony Petric
    Abstract:

    La0.8Sr0.2Ga0.875Mg0.125O3-x (LSGM), La0.8Sr0.2Co0.2Fe0.8O3-d (LSCF), yttria stabilized zirconia (YSZ) and (Ce0.8Gd0.2)O1.9 (CGO) were Electrophoretically deposited on Ni foils and Ni-yttria stabilized zirconia substrates prepared by tape casting. It was demonstrated that the ethyl alcohol‐phosphate ester‐polyvinyl butyral system is an eAective solvent‐dispersant‐binder system for Electrophoretic Deposition of these materials. The influence of dispersant, binder and current density on Deposition eAciency and deposit morphology was studied. The microstructure of the deposits was examined by electron microscopy. The proposed solvent‐ dispersant‐binder medium for Electrophoretic Deposition of LSGM, LSCF, YSZ and CGO has important advantages and implications in fuel cell design. # 2000 Elsevier Science Ltd. All rights reserved.

Aldo R. Boccaccini - One of the best experts on this subject based on the ideXlab platform.

  • Electrophoretic Deposition of carbon nanotubes: recent progress and remaining challenges
    International Materials Reviews, 2020
    Co-Authors: Muhammad Atiq Ur Rehman, Qianq Chen, Annabel Braem, Milo S. P. Shaffer, Aldo R. Boccaccini
    Abstract:

    Electrophoretic Deposition (EPD) is a powerful technique to assemble carbon nanotube (CNT) coatings and composite films with controlled architectures. This comprehensive review of the EPD of CNTs a...

  • Electrophoretic Deposition of Nanomaterials - Electrophoretic Deposition of nanomaterials
    Nanostructure Science and Technology, 2012
    Co-Authors: James H. Dickerson, Aldo R. Boccaccini
    Abstract:

    Introduction to Nanoparticle Film Formation by Electrophoresis.- Electrophoretic Aggregation and Manipulation of Nanomaterials.- DiElectrophoretic 1D & 2D Manipulation and/or Trapping.- Dielectrophoresis of Nanomaterials in Microfluidics and Nanofluidics.- Theory and Modeling of Electrophoretic Deposition of Nanomaterials.- Electrophoretic Deposition of Luminescent Nanomaterials.- Electrophoretic Deposition of Carbon Nanotubes.- Electrophoretic Deposition of Nanomaterials for Solid Oxide Fuel Cell Applications.- Electrophoretic Deposition of Nano-ceramics for Electronics Applications.- Electrophoretic Deposition of Nano-ceramics for Biological Applications.- Electrophoretic Deposition of Metallic Nanowires, Nanotubes, and Nanorods.- Electrophoretic Deposition of Conducting Nanopolymers.- Industrial Applications and Procedures of Nanoparticle Electrophoretic Deposition.- Conclusions and Trajectories for the Future.

  • Electrophoretic Deposition of nanomaterials
    ednn, 2012
    Co-Authors: James H. Dickerson, Aldo R. Boccaccini
    Abstract:

    Introduction to Nanoparticle Film Formation by Electrophoresis.- Electrophoretic Aggregation and Manipulation of Nanomaterials.- DiElectrophoretic 1D & 2D Manipulation and/or Trapping.- Dielectrophoresis of Nanomaterials in Microfluidics and Nanofluidics.- Theory and Modeling of Electrophoretic Deposition of Nanomaterials.- Electrophoretic Deposition of Luminescent Nanomaterials.- Electrophoretic Deposition of Carbon Nanotubes.- Electrophoretic Deposition of Nanomaterials for Solid Oxide Fuel Cell Applications.- Electrophoretic Deposition of Nano-ceramics for Electronics Applications.- Electrophoretic Deposition of Nano-ceramics for Biological Applications.- Electrophoretic Deposition of Metallic Nanowires, Nanotubes, and Nanorods.- Electrophoretic Deposition of Conducting Nanopolymers.- Industrial Applications and Procedures of Nanoparticle Electrophoretic Deposition.- Conclusions and Trajectories for the Future.

  • Electrophoretic Deposition of chitosan
    Materials Letters, 2009
    Co-Authors: Abdolreza Simchi, F. Pishbin, Aldo R. Boccaccini
    Abstract:

    Abstract The Electrophoretic Deposition (EPD) of chitosan on metallic substrates was investigated. The Electrophoretic mobility of the natural biopolymer in aqueous solution as a function of pH was studied. Because the protonation/deporotonation of chitosan is pH-dependent, the Electrophoretic mobility and Deposition rate is shown to increase with increasing pH from 2.9 to 4.1. The film growth rate is estimated to vary in the range 0.02–0.08 µm/s depending on the pH value. At high growth rates (> 0.05 µm/s), a porous film is obtained due to hydrogen entrapment. The EPD method developed here is applicable for the surface modification of metal implants by chitosan to develop novel bioactive coatings.

Kenneth R. Kort - One of the best experts on this subject based on the ideXlab platform.

  • Oriented Electrophoretic Deposition of GdOCl Nanoplatelets B
    The Journal of Physical Chemistry, 2013
    Co-Authors: Kenneth R. Kort, Sarbajit Banerjee
    Abstract:

    Electrophoretic Deposition has emerged as a versatile and precisely tunable approach for the rapid Deposition of conformal thin films of colloidal nanocrystals. The Electrophoretic Deposition of phosphor particles has assumed special significance in recent years as a commercially viable means toward the fabrication of large-area, ultrathin high-resolution emissive display screens. Here, we demonstrate that the anisotropic shape of colloidal ligand-passivated GdOCl nanoplatelets enables their assembly with remarkable substrate alignment and a high packing density upon Electrophoretic Deposition. GdOCl nanocrystals are promising candidates for phosphor applications given their low maximum phonon cutoff energy, robust chemical stability over prolonged periods of operation, and ability to promote efficacious phonon energy transfer to dopant ions. Potentiostatic Deposition of GdOCl nanoplatelets from cyclohexane dispersions allows the Deposition of individual nanoplatelets with their basal planes parallel to the electrode surface. Tuning the applied voltage and solution concentration allows control of film thickness, ranging up to several tens of micrometers. The high degree of particle alignment is attributed to anisotropic charge distribution and entrainment within electroosmotic flows established in the vicinity of the electrode surface. The oriented high-particle-density GdOCl nanoplatelet thin films are possible candidates for phosphor applications, which is illustrated by the green emission from a Tb-doped GdOCl thin film on indium tin oxide (ITO)-coated glass.

  • Oriented Electrophoretic Deposition of GdOCl nanoplatelets.
    The journal of physical chemistry. B, 2012
    Co-Authors: Kenneth R. Kort, Sarbajit Banerjee
    Abstract:

    Electrophoretic Deposition has emerged as a versatile and precisely tunable approach for the rapid Deposition of conformal thin films of colloidal nanocrystals. The Electrophoretic Deposition of ph...

Peter C Searson - One of the best experts on this subject based on the ideXlab platform.

  • ZnO quantum particle thin films fabricated by Electrophoretic Deposition
    Applied Physics Letters, 1999
    Co-Authors: Eva M. Wong, Peter C Searson
    Abstract:

    Thin films of quantum size ZnO particles were fabricated by Electrophoretic Deposition from stable colloidal suspensions. The average particle size and hence the optical properties can be tailored by controlling the aging time and temperature of the suspensions. Thin films prepared by Electrophoretic Deposition exhibit optical properties characteristic of the quantum size particles. Both the band-to-band and visible photoluminescence were progressively blue shifted with decreasing particle size in the film