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William Neris
University of Missouri-Columbia
Advisor: Tushar Ghosh
Abstract
The electrical properties of diamond can be changed by doping it with various chemicals (dopant). In this project, Chromic Chloride Hexahydrate will be diffused into diamond using a Force Diffusion Reactor, in attempt to create a diamond-based semiconductor. High Power Electronics such as diamond based semiconductors exhibit tremendous properties such as, its high tolerance to corrosion, radiation and high temperatures, which makes it a great prospect to sustain the severe conditions in space exploration. Natural and synthetic diamond will be used in the form of films and micro and nano-powder. The concentration of the dopant will play a significant role on the efficiency of the Diode. Also, homogeneous distribution of dopant in diamond is challenging. One of the objectives is to study the mechanism for uniform distribution of dopant in diamond. An electric field will be used to aid in a uniform distribution of dopant. The effects of temperature and time that the samples are treated in the reactor will be also investigated. Various analysis including SEM, EDS, and Raman will be done before and after the diffusion of the dopant, to characterize the composition of the sample. Following diffusion of dopant, its electrical properties will be studied by applying a potential on the doped diamond materials.
William Neris grew up in San Lorenzo, Puerto Rico. He currently attends the University of Missouri-Columbia as a Master student in the Nuclear Science and Engineering Institute, specializing in Medical Physics. His career goals are to move back to Puerto Rico, work in a Radiation Therapy Center and become a Certified Medical Physicist by the American Board of Radiology.
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