Hyungsoo Choi

Hyungsoo Choi
Hyungsoo Choi
  • Research Professor
(217) 244-6345
2050 Electrical & Computer Eng Bldg

Education

  • Ph.D. Chemistry, Brown University, 1983

Research Statement

Synthesis and development of tailored organometallic, inorganic and polymeric precursors to deposit nanostructured materials, such as thin films, nanoparticles and nanowires of metals and ceramics, and micro and nano-spheres of biomaterials, via sol-gel processing, flow-limited field emission electrostatic spray (FFESS) deposition, and chemical vapor deposition (CVD) for various devices such as display devices, solar cells, metal oxide topological insulators, and metamaterials, and via chemical solution method and precision particle fabrication (PPF) technology for advanced drug delivery and cell therapy, including pancreatic islet encapsulation for type I diabetes treatment.

Research Interests

  • Electronic and optical materials: electronic, optical and magnetic materials for various devices involving thin films, micro and nano particles, and nanowires/tubes of metals, and metal nitrides and oxides utilizing their electronic, optical, optoelectronic, and magnetic properties.
  • Thin film and nanoparticle fabrication: Thin films, micro and nano particles, and nanowires/tubes via sol-gel processing, charged liquid cluster beam (CLCB) deposition, chemical vapor deposition (CVD), chemical solution deposition (CSD), and precision particle fabrication (PPF) technology.
  • Precursors for Nanoscale materials synthesis: Syntheses and development of tailored organometallic, inorganic and polymeric precursors
  • Bio-materials: micro and nano spheres/capsules of biodegradable/compatible materials for imaging, advance drug delivery, and cell therapy.

Research Areas

  • Biomedical imaging
  • Bionanotechnology
  • Nano-materials
  • Semiconductor materials
  • Sensors

Research Topics

  • Charge particle physics and engineering
  • Nanomedicine and bio-nanotechnology
  • Semiconductor devices and manufacturing
  • Solar and renewable technology

Selected Articles in Journals

Patents

  • Encapsulated Materials and Methods for Encapsulating Materials, K. Kim, and H. Choi, U. S. Patent No. 8,663,511 B2, 2014.
  • Microparticles, K. Kim, H. Choi, Y. Choi, U. S. Patent No. 8,409,621 B2, 2013
  • High Intensity Discharge ARC Lamp Using UV-Absorbant Coating, K. Kim, J. Gao, H. Choi, R. P. Singh, U.S. Patent No. 8,469,762 B2, 2013.
  • Apparatus and Methods for Applying a Film on a Substrate, K. Kim, H. Choi, U. S. Patent No. 8,507,048 B2, 2013.
  • Apparatuses and Methods for Applying One or More Materials on One or More Substrates, K. KIM, H. Choi, P. E. Heil, U. S. Patent No. 8,342,120 B2, 2013.
  • Encapsulated Materials and Methods for Encapsulating Materials, K. Kim, and H. Choi, U. S. Patent No. 8,293,271 B2, 2012.
  • Electron Emission Device Incorporating Free Standing Monocrystalline Nanowires, H. Choi, K. Kim, U. S. Patent No. 8,030,833 B2, 2011.
  • Apparatus and Method for Applying a Film on a Substrate, K. Kim, H. Choi, U. S. Patent No. 8,025025 B2, 2011.
  • Organometallic Compounds and Their Use as a Precursors for Forming Films and Powders of Metal or Metal Derivatives, H. Choi, U. S. Patent No. 7,507,390, 2009.
  • "Nanostructures Including A Metal," H. Choi, PCT 10/664,431(US), 2003; U. S. Patent No. 7,344,753, 2008.
  • "Microparticles," K. Kim, H. Choi, and Y. B. Choy, U. S. Patent No. 7,309,500, 2007.
  • "Organometallic Compounds and their use as Precursors for Forming Films, and Powders of Metal or Metal Derivatives," H. Choi, China Patent Pub. No. 101139365, 2008; Korean Patent Pub. No. 1020030028767, 2003; European Patent Pub. No. 1299404 (A1), 2003; U. S. Patent No. 6,777,565, 2004.
  • "Organocopper Precursors for Chemical Vapor Deposition," H. Choi, U. S. Patent No. 6,538,147, 2003.
  • "Amidoalane Precursors for Chemical Vapor Deposition of Aluminum", H. Choi, U. S. Patent No. 5,880,303, 1999.

Research Honors

  • UI College of Medicine, Student Award, Britta & Charles Wolfe Awards for Diabetes Research, 2019
  • National Nanotechnology Initiative (NNI), Winner of EnvisioNano Contest, 2015
  • Arnold O. Beckman Research Award, 2012
  • Arnold O. Beckman Research Award, 2006

Recent Courses Taught

  • ECE 110 - Introduction to Electronics