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Ji Ung Lee
Dr. Ji Ung Lee
Empire Innovation Professor of Nanoscale Engineering


Dr. Lee Discusses Nanoscale Engineering at CNSE

Contact:

  • jlee1@uamail.albany.edu
  • (518) 956-7356

Degrees:
  • Ph.D., Electrical Engineering, University of Wisconsin-Madison, 1996
  • M.S., Electrical Engineering, University of Wisconsin-Madison, 1991
  • B.S., Electrical Engineering, University of Wisconsin-Madison, 1989
  • Areas of concentration: solid state devices, microelectronics, superconductors

Research website: http://www.albany.edu/jiung_research/index.html

Areas of research:

  • Carbon nanotube electronics and optoelectronics
  • Fundamental properties of carbon nanotubes and their growth mechanism
  • Nano-bio applications
  • Chem/bio sensors
  • Tera hertz generation and detection
  • Photovoltaics with nanostructured materials
  • Si-based electronics
Professional experience:
  • General Electric Global Research Center, Niskayuna, NY (1999-2007): Senior Scientist and Project Leader; research in carbon nanotube electronics, photonics and sensors, and nanobio applications
  • Micron Display, Boise, ID (1997-1999): Process Integration Engineer for field emission displays
  • Argonne National Laboratory, Argonne, IL (1996-1997): Postdoctoral appointment, Materials Science Division
Professional achievements:
  • Inventor of the world's first carbon nanotube p-n junction diode (subject of 2 cover articles in App. Phys. Lett. that were featured in MSNBC, CNN, Physics Today, Popular Mechanics, Nature News, Small Times, Laser Focus World, PhysOrg.com and other publications)
  • World's first demonstration of photovoltaic effect in carbon nanotube diodes
  • Expert in amorphous Si devices and a-Si digital x-ray detectors
  • Inventor of several novel cold cathode field emitters for flat panel displays and x-ray generation
  • One of the first to demonstrated intrinsic Josephson effects in high temperature superconductors, and coherent magnetic vortex motion
Awards and honors:
  • Recipient of the NASA Tech Briefs Nano 50 Award for the Switchable Nanotube Diodes (Boston, MA- Nov. 10-11, 2005)
  • Recipient of the 2004 Hull Award, the highest individual award given to the most outstanding young scientist at GE Global Research
  • 2004 GE Publication of the Year award
Recent invited talks:

FENA/ONAMI Workshop: Nanoelectronics for High Performance Computing and Information Processing, UCLA, November 19-20, 2007.

2007 IEEE Lasers and Electro Optical Society (LEOS - Annual Meeting), Orlando, FL, October 21-25, 2007.

6th Annual Center for Optical Technologies, Lehigh University, Bethlehem, PA, October 8-9, 2007.

Corning Inc., Corning, NY, August 3, 2007.

IEEE Lasers and Electro Optical Society (LEOS - Summer Topical Meetings on Biophotonics), Portland, Oregon, July 23-25, 2007

2nd Workshop on Nanotube Optics and Nanospectroscopy, Ottawa, Canada, June 4-7, 2007

Brookhaven National Laboratory, Center for Functional Nanomaterials, Upton, NY, April 30, 2007

Columbia University, Nanoscale Science and Engineering Center, New York, NY, April 11, 2007

American Physical Society - March Meeting, Denver, CO, March 5-9, 2007

University of Montreal, Montreal, Canada, February 26, 2007

Printed Electronics USA 2006, Phoenix, AZ, December 5-6, 2006

American Chemical Society, Presidential Event, San Francisco, Ca., September 10-13, 2006

2006 IEEE Electron Device Conference: Lester Eastman Conference on High Performance Devices, Cornell University, August 2-4, 2006

NSF/ONR Review of North American R&D on Carbon Nanotube Manufacturing and Applications, NSF, Arlington, VA, June 2, 2006

GE Power Electronics Symposium, "Reconfigurable Carbon Nanotube Switch", GE Global Research, September 1-2, 2005

Cornell University, Center for Nanoscale Systems Symposium: Nanoelectronics - From Discovery to Systems, "Carbon Nanotube p-n Junction Diodes", April 6, 2005

Boston University, Center for Nanoscience and Nanobiotechnology seminar, March 10, 2005

12th NSF Workshop on Materials Science and Nanotechnology, Broomfield, CO, October 28-31, 2004

International Electronics Packaging Symposium, National Trends in Small Scale Systems and Microelectronics Packaging, Binghamton University and GE Global Research, GE Global Research, Niskayuna, NY, October 19-20, 2004

2004 IEEE-Nano, Munich, Germany, Plenary Talk on Carbon Nanotube pn junction diodes, August 16-19, 2004

Recent Publications:

Bandgap renormalization in SWNTs: Origin of the ideal diode behavior in carbon nanotube p-n structures, Ji Ung Lee, Phys. Rev. B 75, 075409 (2007)

Direct probe of excitonic and continuum transitions in the Photocurrent Spectroscopy of Carbon Nanotube pn Diodes (Ji Ung Lee, Peter J. Codella, and Matthew Pietrzykowski, Appl. Phys. Lett. 90, 053103 (2007)

Photovoltaic Effect in Ideal Carbon Nanotube Diodes, Ji Ung Lee, Appl. Phys. Lett. (Cover article, August 15, 2005)

Evolution of charge emission for amorphous silicon FETs exposed to radiation, S. Zelakiewicz, A. Couture, S. Bogdanovich, J-U Lee and G. Possin, Nuclear Instruments and Methods in Physics Research A 546 (2005), 296-299

Carbon nanotube p-n junction diodes, J. U. Lee, P. P. Gipp, and C. M. Heller Appl. Phys. Lett. 85, 145 (2004) (Cover article, July 5, 2004)

Diffusion-limited transport in the off-state of amorphous Si thin-film transistors, J. U. Lee and G. E. Possin, Appl. Phys. Lett. 82, 1302 (2003)

Performance of advanced a-Si/CsI-based flat-panel x-ray detectors for mammography, Douglas Albagli, Heather Hudspeth, George E. Possin, Ji Ung Lee, Paul R. Granfors, and Brian W. Giambattista Proc. SPIE Int. Soc. Opt. Eng. 5030, 553 (2003)

Interlayer phase correlation of the vortex system around the coupling transition in Bi2Sr2CaCu2Oy containing columnar defects Y. Tsuchiya, T. Hanaguri, H. Yasuda, A. Maeda, M. Sasase, K. Hojou, D. G. Steel, J. U. Lee, and D. J. Hofman , Phys. Rev. B 59, 11568 (1999)

Pinning effect on critical dynamics in Tl2Ba2CaCu2O8 films before and after introducing columnar defects, Jin-Tae Kim; Park, Y.K.; Park, J.-C.; Kang, W.N.; Chu, C.W.; Lim, H.R.; Kim, D.H.; Lee, J.U.; Gray, K.E.; Applied Superconductivity, IEEE Transactions on , Volume: 9, Issue: 2, June 1999 Pages: 2296-2299

Observation of coherent modes of Josephson votices in Bi2Sr2CaCu2Ox, J.U. Lee, P. Guptasarma, D. Hornbaker, A. El-Kortas, D. Hinks, and K. E. Gray, Appl. Phys. Lett. 71, 1412 (1997)

Josephson vortex dynamics in superconducting BSCCO, J.U. Lee and J.E. Nordman, Proceedings of the first RIEC International Symposium on Intrinsic Josephson Effects and THz Plasma Oscillations in High Tc Superconductors, Ed. M. Tachiki and T. Yamashita, Sendai, Japan, Feb 23-25, 1997 (Invited Paper)

Effects of damping on the dynamics of Josephson votex in Bi2Sr2CaCu2Ox, Ji Ung Lee and James E. Nordman, Physica C 277 (1997), 7-12

Josephson vortex flow in superconducting single-crystal Bi2Sr2CaCu2Ox, Ji Ung Lee, James E. Nordman, and Gert Hohenwarter, Appl. Phys. Lett. 67, 1471 (1995)

RF coupling to single crystal BSCCO under c-axis bias, Hohenwarter, G.K.G.; Laundrie, A.W.; Lee, J.U.; Beyer, J.B.; Nordman, J.E.; Applied Superconductivity, IEEE Transactions on , Volume: 5, Issue: 2, Jun 1995, Pg: 3195-3198

Low magnetic field sensitivity of c-axis transport in BSCCO (2212) single crystals, Ji Ung Lee; Hohenwarter, G.; Kelley, R.J.; Nordman, J.E.; Applied Superconductivity, IEEE Transactions on , Volume: 5, Issue: 2, Jun 1995, Pg: 2543-2546

Magnetic field sensitivity of variable thickness microbridges in TBCCO, BSCCO, and YBCO, Davidson, B.A.; Redwing, R.D.; O'Callaghan, J.; Raissi, F.; Ji Ung Lee; Burke, J.P.; Hohenwarter, G.K.G.; Nordman, J.E.; Beyer, J.B.; Liou, S.H.; Eckstein, J.; Siegal, M.P.; Hou, S.Y.; Phillips, J.M.; Applied Superconductivity, IEEE Transactions on , Volume: 4, Issue: 4, Dec. 1994 Pages: 228-235

Effects of deposition conditions on stoichiometry of off-axis RF sputtered BiSrCaCuO thin films, Yang, Y.F.; Nordman, J.E.; Lee, J.U.; Applied Superconductivity, IEEE Transactions on , Volume: 3, Issue: 1, Mar 1993 Pages: 1543-1546

Effects of Target Presputtering on Stoichiometry of Sputtered Bi-Sr-Ca-Cu-O Thin Films, Y.F. Yang, J.U. Lee, J.E. Nordman, J. of Vac. Sci. and Tech. A, Vol 10, No. 5, Sep/Oct '92

Issued patents:

7,239,076 Self-aligned gated rod field emission device and associated method of fabrication, Lee, Ji Ung; Corderman, Reed Roeder; Huber, William Hullinger, July 3, 2007

7,226,818 High performance field effect transistors comprising carbon nanotubes fabricated using solution based processing, Malenfant, Patrick Roland Lucien; Lee, Ji-Ung; Li, Yun; Cicha, Walter Vladimir

7,145,152 Storage capacitor design for a solid state imager, Lee, Ji Ung; Albaglie, D.; Possin, G.; Hennessy, W.A; Wei, C.Y.

6,943,495 Micro electro mechanical system controlled organic LED and pixel arrays and method of using and of manufacturing same, Ma, Kelvin; Lee, Ji Ung; Duggal, Anil, Sep. 13, 2005

6,890,780 Method for forming and electrostatically-doped carbon nanotube device, Lee, Ji Ung, May 10, 2005

6,784,434 Imaging array and method for manufacturing same Hennessy, William Andrew; Albagli, Douglas; Lee, Ji Ung; Wei, Ching-Yeu, August 31, 2004

6,777,685 Imaging array and methods for fabricating same, Lee, Ji Ung, August 17, 2004

6,740,884 Imaging array and methods for fabricating same, Lee, Ji Ung; Albagli, Douglas ; Possin, George Edward; Wei, Ching-Yeu, May 25, 2004

6,710,539 Field emission devices having structure for reduced emitter tip to gate spacing, Lee, Ji Ung, March 23, 2004

6,677,709 Micro electromechanical system controlled organic led and pixel arrays and method of using and of manufacturing same, Ma, Kelvin; Lee, Ji-Ung; Duggal, Anil Raj, January 13, 2004

6,559,506 Imaging array and methods for fabricating same, Lee, Ji Ung; Possin, George Edward, May 6, 2003

6,555,402 Self-aligned field extraction grid and method of forming, Wells, David H.; Lee, Ji Ung; Wilson, Aaron R., April 29, 2003

6,552,477 Field emission display backplates, Lee, Ji Ung, April 22, 2003

6,504,170 Field effect transistors, field emission apparatuses, and a thin film transistor, Lee, Ji Ung; Lee, John; Moradi, Benham, January 7, 2003

6,464,550 Methods of forming field emission display backplates, Lee, Ji Ung, October 15, 2002

6,394,871 Method for reducing emitter tip to gate spacing in field emission devices, Lee, Ji Ung, May 28, 2002

6,391,670 Method of forming a self-aligned field extraction grid, Wells, David H.; Lee, Ji Ung; Wilson, Aaron R., May 21, 2002

6,344,378 Field effect transistors, field emission apparatuses, thin film transistors, and methods of forming field effect transistors, Lee, Ji Ung; Lee, John; Moradi, Benham, February 5, 2002