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Featured researches published by Jae Ik Choi.


Key Engineering Materials | 2012

EPD of Phosphors for Display and Solid State Lighting Technologies

Jae Ik Choi; Esther Sluzky; Maria Anc; Alan Piquette; Mark E. Hannah; Kailash C. Mishra; Joanna McKittrick; Jan B. Talbot

Electrophoretic deposition (EPD) has been used for phosphor screening for a variety of emissive information displays and more recently, for solid state lighting. EPD is well suited to deposit the fine (nanometer to micrometer diameter) phosphor particles needed for high resolution displays. The fundamentals of the EPD process in an isopropanol (IPA) bath have been characterized by the dissociation behavior of nitrate salts in IPA, measurement of the effects of pH and nitrate salt concentration on the zeta potential of the particles, studying of the processing conditions and modeling of the deposition rates. The electrochemical precipitation reactions form an adhesive agent for the particles and the adhesion strength can be enhanced by various methods to meet the requirements of these technologies.


ECS Journal of Solid State Science and Technology | 2013

Phosphor Selection Considerations for Near-UV LED Solid State Lighting

Joanna McKittrick; M. E. Hannah; Alan Piquette; J. K. Han; Jae Ik Choi; M. Anc; M. Galvez; H. Lugauer; Jan B. Talbot; Kailash C. Mishra


ECS Journal of Solid State Science and Technology | 2013

Phosphor Development and Integration for Near-UV LED Solid State Lighting

J. K. Han; Jae Ik Choi; Alan Piquette; M. E. Hannah; M. Anc; M. Galvez; Jan B. Talbot; Joanna McKittrick


ECS Journal of Solid State Science and Technology | 2013

Electrophoretic Deposition of Phosphors for White Solid State Lighting Using Near UV-Emitting LEDs

Jae Ik Choi; M. Anc; Alan Piquette; M. E. Hannah; Kailash C. Mishra; Joanna McKittrick; Jan B. Talbot


Journal of The Electrochemical Society | 2014

Electrophoretic Deposition of Nano- and Micron-Sized Ba2SiO4:Eu2+ Phosphor Particles

Jae Ik Choi; M. Anc; A. Piquette; M. E. Hannah; Kailash C. Mishra; Jan B. Talbot; Joanna McKittrick


Meeting Abstracts | 2013

Comparison of Electrophoretic Deposition of Nano- and Micron-Sized Ba2SiO4:Eu2+ Phosphor Particles

Jae Ik Choi; Maria Anc; Alan Piquette; Mark E. Hannah; Kailash C. Mishra; Jan B. Talbot; Joanna McKittrick


224th ECS Meeting (October 27 – November 1, 2013) | 2013

Development of Phosphors for White Emitting Near UV LEDs

Jinkyu Han; Mark E. Hannah; Jae Ik Choi; Alan Piquette; Maria Anc; Jan B. Talbot; Kailash C. Mishra; Joanna McKittrick


224th ECS Meeting (October 27 – November 1, 2013) | 2013

Effect of Synthesis Methods On the Powder Characteristics and Luminescence Properties of Nanophosphors

Jinkyu Han; Jae Ik Choi; Jan B. Talbot; John Seung-Hyo Lee; Joanna McKittrick


ieee photonics conference | 2012

White-emitting solid state lighting by electrophoretic deposition of phosphors

Jae Ik Choi; Maria Anc; Alan Piquette; Mark E. Hannah; K. C. Mishira; Joanna McKittrick; Jan B. Talbot


Meeting Abstracts | 2012

Highly Efficient Phosphor-Converted White Light Emitting Diode by Electrophoretic Deposition

Jae Ik Choi; Maria Anc; Alan Piquette; Mark E. Hannah; Kailash C. Mishra; Jan B. Talbot; Joanna McKittrick

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Jan B. Talbot

University of California

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Jan Talbot

University of California

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G.A. Hirata

National Autonomous University of Mexico

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