Daniel S. Choi, Ph.D.

 

Associate Professor

Associate Director of the University Cleanroom Facilities

Department of Materials Science & Engineering

University of Idaho, Moscow

BANTech member

 

Director of the Nano and Micro Engineering Laboratory

Office: McClure Hall 303C

E-mail: dchoi@uidaho.edu

Phone: 208-885-0352/Fax: 208-885-0154

 

 

 

 

RESEARCH EXPERIENCE

 

· Nanostructure-based hyperthermia for cancer treatment (on-going)

· In-vitro neural detection by vertically grown single nanowire (on-going)

· Development of nanowire-based microbattery (on-going)

· Nanowire-based on-chip supercapacitor (on-going)

· Structural integration of energy devices (on-going)

· Nanofluidic size exclusion chromatograph for macromolecular analyses

· Development of novel nanofabrication process for commercial applications

· Development of MEMS gyroscope based on fused silica

· Multi-functional surface enhanced Raman Sol-Gels for Lab-On-A-Chip separation, detection, and Raman characterization of organic compounds

· Thermophoretic Concentration of Organic Molecules in Simulated Hydrothermal Vent Geometries

· Fabrication and characterization of nanomechanical resonators and biosensors

· Micro-ion mobility chromatograph systems for the analysis of inorganic ions in water quality monitoring

· Microfluidic Capillary Electrophoresis Systems based on Monolithic Membrane Valves

· Raman Spectroscopy with Microfluidic System for Life Detection

· Piezoelectric Nanowire Resonator Sensor Arrays for Biochemical Detection

· Biosensors based on carbon nanotubes and silicon nanowires

· High-Q Mechanical Resonator Arrays based on Carbon Nanotubes

· MEMS Gas Sensors Based on Photonic Bandgap StrictuRES

· Electron-induced Luminescence and X-ray Spectrometer

· Micro-seismometer for space applications

· Development of nanofabrication by Focused Ion Beam

· Low Energy electron Beam lithography with Silver Nanocrystal Shadowmask

· Integration of MEMS and CMOS

· Electromigration Study for Power Devices

· Fabrication and characterization of delta-doped GaAs/AlGaAs quantum wire transistors based on nanowires grown by MBE

· Transport study of single bismuth nanowires

· Vertical MOSFET

· Study of Ohmic contacts on GaN FET

 

 

 

 

 

 

 

 

 

 

INVITED PRESEANTATIONS

 

· Daniel Choi, “Nanoclusters, Nanomaterials, and Nanotechnologies,” Invited Lecture, Physics Washington State University, WA, May 23, 2008.

· Daniel Choi, “Nanostructures: Our Future,” ME/MSE Colloquia Seminar, Washington State University, WA, Jan. 24, 2008.

· Daniel Choi, “One-dimensional Nanostructures: Innovation and Beyond,” EE Colloquia Seminar, University of California at Riverside, CA, Nov. 6, 2006.

· Daniel Choi, “One-dimensional Nanostructures: Innovation and Manufacturing Opportunities, “A Joint Meeting supported by the Air Force Office of Scientific Research of 5^th US-Korea Workshop on Nanostructured Materials and Manufacturing & 3^rd US-Korea Workshop on Nanoelectronics, Aug 8-9, 2006, UCLA, CA.

· Daniel Choi, “Nanowires: Innovations and Beyond,” Distinguished Lecturer’s Seminar Program, Korea Advanced Nanotechnology Center Fab, Korea, July 11, 2006.

· Daniel Choi, “Nanostructures for Space Applications”, National Laboratory of Magnetic Materials & Devices, Seminar Series, Seoul, Korea, Aug. 12, 2005.

· Daniel Choi, “Nanowire-based Li-ion Rechargeable Batteries,” Micro-battery Workshop, Herdon, VA, Aug. 24, 2005.

· Daniel Choi, “Carbon Nanotube-based mechanical Resonators,” Materials Science Department Seminar Series, Seoul National University, Korea, July 22, 2004.

· Daniel Choi, “Engineered Carbon Nanotubes for High-Q Nanomechanical Resonators,” Tera-level Nanoelectronics/Nanomaterials Program, Nov. 2003, Seoul, Korea.

· Sung Choi (Daniel), “Nanocrystal Shadowmasks:Technology Opportunities,” Girvan Nanotech Showcase, NASA Ames Research Center, April 11, 2003.

· Daniel Choi, “Development of Novel Static Random-Access Memory (SRAM) Based on Segmented Carbon Nanotubes,” DARPA Moletronics Program Workshop, Invited Poster, Washington DC, June 2003.

· Daniel Choi, “Development of Carbon Nanotube-based NEMS Devices,” LG Electronics, Korea, July 2003.

· Daniel Choi, “Nanoelectronics for Future Applications,” Samsung Semiconductor R&D Center, July 2002.

· Sung Choi (Daniel), “Transport Study of a Single Bismuth Nanowire Fabricated by Nanocrystal Shadowmask,” Electronics Photonics Laboratory Seminar Series, The Aerospace Corporation, El Segundo, CA, June, 2000.

 

 

 

 

 

 

 

 

 

PROFESSIONAL SOCIETY

 

· Member: Materials Research Society (MRS)

· Member: America Vacuum Society (AVS)

· Member: American Chemical Society (ACS)

· Member: Institute of Electrical and Electronics Engineers (IEEE)

· Member: IEEE, Engineering in Medicine and Biology Society (IEEE EMBS)

 

 

 

 

 

 

 

 

 

US PATENTS

 

· S. Choi (Daniel), “Lithium-ion rechargeable battery based on nanostructures,” U.S. Patent pub. on 9/28/2006 (US-2006-0216603-A1).

· J. Cho, J. Min, S. Ko, J. Soh, Y. Kim, D. Choi, “Fabrication of Disc-shaped Nanomaterials,” International Patent pub. on 6/26/2007 (10-0733794).

· N.V. Myung, E. H. Yang, B. Y. Yoo, Y. W. Rheem, and D. S. Choi, “Magnetically Assembled Nanowires,” CIT-4566-P, filed for Provisional Patent Application on 2/15/2006.

· D. S. Choi, E. H. Yang, Y. Bae, and C. Ramsey, “Fabrication of Copper Nanotubes by Electrodeposition,” CIT 4467-P, filed for Provisional Patent Application on 8/31/2005.

· E.H. Yang, D. S. Choi, K. V. Shcheglov, and Y. Hishinuma, “Amplification of Thermionic Cooling Power Using Precision Metal Nanowire Arrays,” CIT 4414-P, filed for Provisional Patent Application on 6/17/2004.

· N. V. Myung, J. Fluerial, M. Yun, W. west, and D. Choi, “High rated alumina nanotemplate fabrication on silicon wafer with controlled pore diameters,” U.S. Prov. patent application filed (2003).

· S. Choi (Daniel), M. Leung, G. Stupian, and N. Presser, “Low energy electron beam lithography using nanocrystals as a shadowmask,” U. S. Patent pub. on 6/2003.

· B. Hunt, D. Choi, M. Hoenk, R. Kowalczyk, F. Noca, L. Epp, and D. Hoppe, “Pattern-aligned Carbon Nanotube Growth and Tunable Resonator Apparatus,” U.S. Prov. application filed (04/01/2002).

· F. Noca, D. Choi, B. Hunt, M. Hoenk, and R. Kowalczyk, “Development of Gel-free Molecular Sieve Based on Self-Assembled Nano-Arrays,” U.S. Prov. patent application filed (11/09/2001).

· T. George and D. Choi, “Micromachined tuned-band hot bolometer,” U.S. Patent application filed (1/26/2001).

· D. Choi and K. Wang, “Fabrication and transport properties of Bi nanowires,” U.S. patent application filed. (4/17/2001).

 

 

 

 

 

 

 

 

Research Interests:

 

Ø Nanoelectronics

 

Ø Energy

 

Ø Nano-biotechnology

 

 

 

Ø Nanomagnetics

 

Ø Nanomanufacturing

 

Ø Nano/microfluidics

 

 

Ø Spintronics

 

Ø Nano Food Science

 

Ø Green Nanotechnology

 

AWARDS AND RECOGNITION

 

Jet Propulsion Laboratory Spot Award (2005)

Ø Recognized for developing carbon nanotube-based Nano-Mechanical Resonators and Parylene-based microfluidic pumps.

 

NASA Tech Brief Awards (2000-20007), JPL

Ø Recognized for invention on “Fabrication of copper nanotubes by electrochemical deposition,” (2008)

Ø Recognized for invention on “Embedded longitudinal nanochannels transferred from metal nanowire patterns,” (2007)

Ø Recognized for invention on “Fabrication of high aspect-ratio fused silica patterns for MEMS Gyro,” (2007)

Ø Recognized for invention on “High rated alumina nanotemplate fabrication on silicon wafer,” (2005)

Ø Recognized for invention on “Nanocarpets for trapping particulates, bacteria, and spores,” (2005)

Ø Recognized for invention on “Pattern-aligned carbon nanotube growth,” (2004)

 

Invention Award (1997), The Aerospace Corporation

Ø Recognized for invention on “Fabrication of Nanostructures by silver nanocrystals as a shadowmask”

 

Research Fellowship

Ø Augmentation Awards for Science & Engineering Research Training Fellowship from U.S. government (4’97—6/’01)

 

Scholarship

Ø The Korean-American Association Scholarship (1993, 1995)

Ø The Korean Senior Citizen Mutual Club Scholarship (1993, 1994)

Ø The Korean Honor Scholarship from the Korean government (1992)

 

 

 

 

 

 

 

 

 

 

 

EDUCATION

 

Ph.D., Electrical Engineering, University of California at Los Angeles (Major area: Nanoelectronics), 2000.

Ø Dissertation title: “Fabrication and Characterization of Single Bismuth Nanowire”

 

M.S., Materials Science & Engineering, University of California at Los Angeles (Major area: Electronic materials), 1992.

Ø Thesis title: “Growth of Bi₂Sr₂Ca₁Cu₂O_x Thin Film Superconductors by Liquid-Phase-Epitaxy)”

 

B.S., Metallurgical Engineering, Seoul National University, Republic of Korea, 1988

 

 

 

 

 

 

 

 

 

 

EXPERIENCE

 

Ø Associate Professor, Materials Science & Engineering, University of Idaho, Moscow: Aug. 2007—Present

 

Ø Member of Engineering Staff, Task Manager: Jet Propulsion Laboratory/NASA: Feb. 1999—Aug. 2007

 

Ø Visiting Professor, Mechanical and Aerospace Engineering, UCLA: June 2006—May 2007.

 

Ø Department Instructor, Mechanical and Aerospace Engineering, UCLA: June 2006—May 2007.

 

Ø Member of Technical Staff, Electronics & Photonics Laboratory: The Aerospace Corporation: June 1996-Feb. 2000

 

Ø Graduate Research Assistant, Electrical Engineering Department, UCLA: Sept. 1995-June 1999.

 

Ø Design & Test Engineer, Densmore Engineering, Inc.: Jan. 1990-Aug. 1990.