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PATENTS:
RECENT REFEREED PUBLICATIONS:
201. A. Ignatiev, N. J. Wu, H. Lin, T. Q. Hung and X. Y. Li, "Non-volatile ferroelectric-superconducting field effect transistor," in the Proc. of 7th Intl. Symp. on Integrated Ferroelectrics, Colorado Springs. Colorado, (March 20-22, 1995).
202. A. Zomorrodian, N. J. Wu, H. Lin, T. Q. Huang, X. Y. Li and A. Ignatiev, "Temperature dependence of infrared photocurrent in Pb(Zr0.52Ti0.48)O3," J. Appl. Phys. 76, 4780 (1995).
203. N. J. Wu, X. Y. Li, J. Li, H. Lin, H. Fredricksen, K. Xie, A. Ignatiev and H. D. Shih, "Thin film growth and interface characterization of YBCO on LiNbO3 substrate," J. Mat. Research 10, 3009 (1995).
204. H. Lin, N. J. Wu, A. Ignatiev, "A ferroelectric-superconducting Photo-detector," J. Appl. Phys. 12, 7130 (1996).
205. H. Lin, A.R. Zomorrodian, N. J. Wu, T. Q. Huang, D. Liu, X.Y. Li and A. Ignatiev, "A pyroelectric current method for high temperature retention behavior measurement of a ferroelectric memory cell," Integrated Ferroelectrics,12, 47 (1996).
206. A.R. Zomorrodian, H. LIn, N. J. Wu, T. Q. Huang, S. Endicter, X. Y. Li, D. Liu and A. Ignatiev, "Memory and retention behavior of a PbZrxTi1-xO3/YBa2Cu3O7-x FSuFET by admittance spectroscopy and DC measurement," J. Appl. Phys., (1996).
207. A. Ignatiev, "The Wake Shield Facility and Space-Based Thin Film Science and Technology", Earth Space Review, 4, 10 (1995).
208. A. Zomorrodian, H. Lin, N.J. Wu, T. Q. Huang, D. Liu, X. Li and A. Ignatiev, "High Temperature Polarization Retention of PZT/YBCO", Applied Phys. Letters, 12, 1789 (1996).
209. A. Ignatiev, C. Horton, M. Sterling, R. Sega, A. Bensaoula, A. Freundlich and S. Pei, "Advanced II-V Materials Processing in the Vacuum of Space", Proc. IEEE GaAs IC Conference, 94CH34488, 13 (1994).
210. C. Horton, A. Ignatiev, M. Sterling, a. Bensaoula, A. Freundlich, S. Pei, R. Sega, "II-V Compound Semiconductor Film Growth in Low Earth Orbit on the Wake Shield Facility", AIP Conf. Proc. 325, 305 (1995).
211. M. Desai, R. Forrest, C. Horton, A. Ignatiev, M. Sterling, J. Strozier, C.Justiz, and R. Sega, "Vacuum and Flow Field Results from the Wake Shield Facility Flight Experiment", AIP Conf. Proc. 325, 323 (1995).
212. A. Ignatiev, C. Horton, M. Sterling, R. Sega, A. Bensaoula, A. Freundlich and S. Pei, " Advanced III-V Materials Processing in the Ultra-vacuum of Space", Proc. Sym. Large Area Wafer Growth and Process. (Electrochemical Soc. Meeting, 1994).
213. C. Justiz, A. Ignatiev, M. Sterling, and R. Sega, "The Wake Shield Flight Experiment - Preliminary Results of Shuttle Flight One", Proc. 19th Intl. Symp. Rarified Gas Dynamics (London, England, 1994).
214. H. Fredricksen, D. Ritums, N. J. Wu, X. Y. Li, J. Willis, A. Ignatiev, J. Feller, B.K.
Sarma and M. Levy, "Design dependent transition behavior for superconducting transducers and reflectors," Proc. of 1995 IEEE Ultrasonics Symp., Nov. 7-10, Seattle Washington, Vol.1, PP. 555-558.
215. A. Ignatiev, N. J. Wu, H. Lin, T. Q. Hung and X. Y. Li, "Non-volatile ferroelectric-superconducting field effect transistor," Integrated Ferroelectrics, 10 (1995), 327.
216. N.J. Wu, H. Lin, A.R. Zomorrodian, D. Liu, A. Ignatiev, "High temperature retention properties of ferroelectric PZT/YBCO heterostructures investigated by pyroelectric current and phase detection," Proc. of 10th Intl. Symp. On the Appl. Ferroelectrics, East Brunswick, NJ, Aug.,18-21, 1996.
217. N. J. Wu, D. Liu, Y.S. Chen, H. Lin, A.R. Zomorrodian, A. Ignatiev, "Infrared photocurrent study of PZT/YBCO and PMSZT/YBCO heterostructure", Proc. of 10th Intl. AeroSense Symp. - 96 SPIE, Orlando, Florida, April 8-12, 1996.
218. N. J. Wu, H. Lin, T. Q. Hung, S. Endicter, D. Liu, A. Ignatiev, " Study of ferroelectric-superconductor field effect transistor", Proc. Of Oxide Superconductor Physics and Nano-engineering II, SPIE's Photonics West '96, Symp., 27 Jan.-2 Feb., 1996, San Jose, CA.
219. P. C. Chou, Q. Zhong, Q. L. Li, K. Abazajian, A. Ignatiev, C. Y. Wang, E. E. Deal, and J. G. Chen, "Optimization of Jc of YBCO Thin Films Prepared by Photo-assisted MOCVD Through Statistical Robust Design:, Physica C 254, 93 (1995).
220. A. Z. Moshfegh, A. H Fattollahi,Y. Q. Wang, Y. Y. Sun, P. H. Hor, and A. Ignatiev, "Comprehensive XRD Study of YBCO Thin Films", J. J. Appl. Phys. 34, 6036 (1995).
221. Y. A. Zhang, J. A. Strozier, and A. Ignatiev, "Low Temperature Photoluminscence of Disordered Thin-layer GaAs/AlAs Superlattices: Experiment", Phys Rev B, 53, 7426 (1996).
222. Y. A. Zhang, J. A. Strozier, and A. Ignatiev, "Low Temperature Photoluminscence of Disordered Thin-layer GaAs/AlAs Superlattices: Kinetic Model", Phys Rev B, 53, 7434 (1996).
223. D. L. Ritums, D. Liu, N. J. Wu, A. Ignatiev, "Epitaxially deposited SrVO3 conducting films by laser ablation and MOCVD," Proc. of 10th IEEE Intl. Symp. on Appl. Ferroelectrics (East Brunswick, NJ, Aug.,18-21, 1996).
224. N.J. Wu, H. Lin, A.R. Zomorrodian, D. Liu, A. Ignatiev, "High temperature retention properties of ferroelectric PZT/YBCO heterostructures investigated by pyroelectric current and phase detection," Proc. of 10th IEEE Intl. Symp. on Appl. Ferroelectrics (East Brunswick, NJ, Aug.,18-21, 1996).
225. N. J. Wu, D. Liu, Y.S. Chen, H. Lin, A.R. Zomorrodian, A. Ignatiev, "Infrared photocurrent study of PZT/YBCO and PMSZT/YBCO heterostructure", Infrared Detectors and Focal Plane Arrays IV,.SPIE-Vol. 2746, PP. 172-177 (1996).
227. N. J. Wu, H. Lin, T. Q. Hung, S. Endicter, D. Liu, A. Ignatiev, " Study of ferroelectric-superconductor field effect transistor", Oxide Superconductor Physics and Nano-engineering II, SPIE Vol. 2697, P.502 (1996).
228. A. Ignatiev, Q. Zhong, P. Chou, X. Zhang, J. Liu and W. Chu, "Thick Film YBCO Growth by Phot-assisted MOCVD: Jc Enhancement by Ion Irradiation", Proc. 10th Anniversary HTS Workshop, pp147 (Houston, TX 1996).
229. A. Ignatiev, M. Sterling, C. Horton, A. Freundlich, S. Pei, and R. Hill, "Thin Film Microelectronics Materials Production in the Vacuum of Space" AIP Conf. Proc. 387, 685 (1997).
230. Y. S. Chen, N. J. Wu, D. Liu, J. Fan, S. Dordevic, and A. Ignatiev, "Uncooled Infrared Detectors for Space Monitoring Applications" AIP Conf. Proc. 387, 813 (1997).
231. A. Ignatiev, Q. Zhong, P.C. Chou, X. Zhang, J.R. Liu, and W. K. Chu, " Large Jc Enhancement for Thick YBCO Films Prepared by Photo-Assisted MOCVD", Appl. Phys. Lett., 70, 1474 (1997).
232. A. Ignatiev, "The Wake Shield Facility - Advanced Thin Film Materials Processing in the Ultra-Vacuum of Space", Proc. 48th International Astronautical Congress, Turin (1997).
233. Y. Q. Xu, A. Ignatiev and N.J. Wu, "Oxide thin film heterostructure IR detectors," Proc. of ISAF XI-'98, Electroceramics VI '98 (in press).
234. Y. M. Chen, D. Ritums, W. W. Zhuang, N. J. Wu, and A. Ignatiev, " Dielectric properties of (Ba,Sr)TiO3 films deposited by Photo-Assisted Metal Organic Chemical Vapor Deposition," Journal of the European Ceramic Society (in press).
235. X. Chen, N. J. Wu, and A. Ignatiev, "Structure and conducting properties of La1-xSrxCoO3-d films," Journal of the European Ceramic Society (in press).
236. R. Zomorrodian, N. J. Wu, H. Lin, A. Ignatiev, "The role of as-grown defects and electrode materials on polarization orientation of Pb(Zr0.52 Ti0.48)O3(PZT) on YBa2Cu3O7-x(YBCO)," Thin Solid Films, 335, 225 (1998).
237. X. Chen, N. J. Wu, Z. H. Zhang, A. Ignatiev, "Structure and conducting properties of La0.5Sr0.5CoO3-x films on YSZ substrate," Thin Solid Films (in press).
238. N. J. Wu, A. Ignatiev, Y.Q. Xu, Y.S. Chen, "(Mn,Sb) doping-Pb(Zr,Ti)O3/YBa2Cu3O7 heterostructure infrared detectors," Integrated Ferroelectrics, 22, 489 (1998).
239. W. W. .Zhuang, N. J. Wu, D. Ritums, Y. M. Chen and A. Ignatiev, "The Integration of Ba0.5Sr0.5TiO3 with silicon by the use of metallic buffers" Integarted of Ferroelectrics, 21, 167 (1998).
240. Y. S. Chen, N. J. Wu, A Ignatiev, " Dependence of infrared photoresponse of pyroelectric thin film detector with respect to chopper frequency," Proc. of 1st Intl. Conf. on New Theories, Discoveries, and Applications of Superconductors and Related Materials, Feb. 19-24, 1998, Baton Rouge, Louisiana.
241. N. J. Wu, A. Ignatiev, Y.S. Chen, Y. Q. Xu, "Perovskite oxide thin film heterostructures for IR detector," Proc. of 1st Intl. Conf. on New Theories, Discoveries, and Applications of Superconductors and Related Materials, Feb. 9-24, 1998, Baton Rouge, Louisiana.
242. A. Ignatiev, Y. Q. Xu, N. J. Wu, D. Liu, "Pyroelectric, ferroelectric and dielectric properties of Mn and Sb-doped PZT thin films for uncooled IR detectrors," Material Science and Engineering B56, 191-194 (1998).
243. Y.Q. Xu, N.J. Wu, D. Liu and A. Ignatiev, "(Mn,Sb) doped-PZT/YBa2Cu3O7-x heterostructure for IR detector array," Mat. Res. Soc. Proc. Vol. 493, 481 (1998).
244. G. Neu, M. Tessiere, A. Freundlich, C. Horton, A. Ignatiev, "Donor acceptor pair spectroscopy of GaAs grown is space ultra vacuum", Applied Physics Letters, (in print).
245. A. Freundlich, T. Kubricht and A. Ignatiev," Lunar Regolith Thin Films: Vacuum Evaporation and Properties", American Institute of Physics Proceeding 420, "Space Technology and Applications International Forum 98 ", p660 (1998).
246. A. Ignatiev and A. Freundlich, "Solar Cell Development on the Surface of the Moon", Proc. 49th International Astronautical Congress, IAA-98-IAA. 13.2.03 (1998).
247. A. Ignatiev, "Thin Films Semiconductor Growth in the Ultra-vacuum of Space" Proc. 49th International Astronautical Congress, IAA-98-IAA. 12.1.05 (1998).
248. A. Freundlich, M. Vilela, C. Monier, and A. Ignatiev, "High Efficincy Radiation Hard Solar Cells for Space Power Satellites" Proc. 49th International Astronautical Congress, IAF-98-R. 1.08 (1998).
249. A. Ignatiev, P.C. Chou, Q. Zhong, X. Zhang and Y.M. Chen, "Photo-assisted MOCVD Growth of YBCO Thick Films for Wire Applications", Applied Superconductivity, 4, 455 (1998).
250. A. Ignatiev, P.C. Chou, Q. Zhong, X. Zhang, and Y. M. Chen, "Photo-Assisted Fabrication of YBCO Thick Films and Budffer Layers on Flexible Substrates for Wire Applications", International Journal of Modern Physics B, 12, 3162 (1998).
ADDITIONAL REFEREED PUBLICATIONS
PUBLICATIONS:
2. "Surface Analysis by Low-Energy Electron Diffraction (LEED)," A. Ignatiev. Am. Lab 5(3), 12 (1973).
3. "Secondary Electron Spectroscopy: A Surface Sensitive Tool," A. Ignatiev, Proc. 125th Electro. Chem. Soc. Meet., Boston, MA., Oct. (1973).
4. "The Structural Composition and Optical Properties of Good Solar Black: Gold Black," P. O'Neill, C. Doland and A. Ignatiev, Proc.: Opt. Phen. Infr. Mat., Op. Soc. Am., Annapolis, MD., (1976).
5. "LEED Observations of the State of the Surface of Martensitically Transforming Cobalt," A. Ignatiev, R. Alsenz, B. W. Lee and M. W. Van Hove, Proc. 3rd Internl. Conf. Sol. Surf. (Vienna, 1977).
6. "The Surface Structure of Epitaxially Grown Cobalt Oxide Films," A. Ignatiev, B. W. Lee and M. A. Van Hove, Proc. 3rd Intrnl. Conf. Sol. Surf. (Vienna, 1977).
7. "Photoelectron Spectroscopy," A. Ignatiev, Proc. Sol. State Exp. Meth. (Copenhagen, 1978).
8. "Black Chrome Surface Morphology," A. Ignatiev Proc. DOE Workshop on Selective Absorber Coatings, p. 189 (Golden, CO., 1977).
9. "The Surface Microstructure-Optical Properties Relationship in Solar Absorbers," A. Ignatiev, Proc. 2nd Conf. Abs. Surf. (SERI, 1979).
10. "Similar Surface Structures for CO and N2 Adsorbed on the W(210) Surface," A. Ignatiev, J. Vac. Sci. Technol. (1979).
11. "Epitaxial Thin Film Growth in Outer Space," A. Ignatiev and C.W. Chu, Space Commerce '88 Symposium-Montreux, Gordon and Breach (1988).
12. "Surface Physics - Materials Science Research Possibilities on a Lunar Base," A. Ignatiev, AIP Conf. Proc. 202, Physics & Astrophysics From Lunar Base (AIP, New York) 1990.
13. "Proposed Epitaxial Thin Film Growth in the Ultra-Vacuum of Space," A. Ignatiev, AIP Conf. Proc. 192, Vacuum Mechatronics (AIP, New York) 1989.
14. "Thin Film Semiconductors and their Growth in the Ultra-Vacuum of Space," A. Ignatiev, R. Sega and H. D. Shih, Space Commerce '90 (Gordon & Breach, Montreaux) 1990.
15. "To Make a Vacuum Cleaner" F. Kuznik and A. Ignatiev, Air & Space, pp70, July (1995).
COMMITTEES AND ADMINISTRATIVE SERVICE, UNIVERSITY OF HOUSTON
February 14, 1945
Wehingen, Germany
U.S. Citizen
Ph.D. Cornell University 1972 Materials Science
B.S. University of Wisconsin 1966 Applied Mathematics and Engineering Physics
1998-Present Professor of Physics, Chemistry and Electrical and Computer Engineering, University of Houston
1988-Present Director, Space Vacuum Epitaxy Center, University of Houston
1987-Present Task Leader, Texas Center for Superconductivity
1986-1988 Associate Director, Space Vacuum Epitaxy Center, University of Houston
1984-1989 Associate Director, Magnetic Information Research Laboratory, University of Houston
1983-present Professor of Physics and Chemistry, University of Houston
1983 Senior Fullbright Scholar, University of Split, Yugoslavia
1982-1983 Professor of Physics, University of Houston
1977-1978 Visiting Lektor/Associate Professor, Institute of Physics, Aarhus University, Aarhus, Denmark
1977-1982 Associate Professor of Physics, University of Houston
1974-present Member, Energy Laboratory, University of Houston
1974-1977 Assistant Professor of Physics, University of Houston
1972-1974 Research Associate, State University of New York at Stony Brook
1967-1971 Graduate Research Assistant, Cornell University
1966 Industrial Consultant, Pope Scientific Company, Menomenee Falls, Wisconsin
1966-1967 Graduate Research Assistant, University of Wisconsin
1964-1966 Undergraduate NSF Research Assistant, University of Wisconsin
Honors:
1994 UH Alumni Award - Dallas Area UH Alumni Group
1994 UH College of Natural Science and Mathematics Alumni Achievement Award
1994 City of Houston "Alex Ignatiev Day" Recognition Award
1994 NASA - JSC Group Achievement Award
1995 City of Houston Science Recognition Award
1997 Texas State Senate Recognition Award
Associate Editor "Vacuum"
Associate Editor "Space Forum"
Associate Editor "Research Trends"
Physical Review
Surface Science
Solar Energy
Thin Solid Films
Journal of Vacuum Science and Technology
Solar Energy Materials
Physical Review Letters
Solid State Communications
Journal of Applied Physics
Applied Physics Letters
National Science Foundation
Department of Energy
Solar Thermal Test Facility User's Association
Stanford Synchrotron Radiation Laboratory
U.S. Army Research Office
NASA
32 National Symposium, American Vacuum Society (Local Arrangements Chairman, 1985)
V International Conference on Ion Beam Analysis (1981)
Southwest Spectroscopy Conference (1980 and 1983)
American Vacuum Society - Texas Chapter Executive Committees (1984-1987)
Space Processing Technical Committee - American Institute of Aeronautics and Astronautics [AIAA] (1988 - )
Materials Research Society - Symposium on Space Compatible Materials (1989)
2nd Int. Conf. on CBE (1989) [ICCBE-2]
Space Technology, Commerce and Communication (1987, 1988, 1989)
Annual Meeting of Centers for the Commercial Development of Space (1992)
Space Processing Symposium, Space Commercialization Conference (1995), (1996), (1997)
International Aeronautica Federation Symposium IAA Materials Science Program Chair (1997, 1998, 1999)
International Aeronautica Federation Symposium Space Power Program Chair (1999)
American Physical Society
American Vacuum Society
Sigma Xi
The American Association for the Advancement of Science
American Chemical Society
The Materials Research Society
American Institute of Aeronautics and Astronautics
American Astronautical Society
International Society of Optical Engineering
Institute for Electrical and Electronic Engineers
1. Freundlich, A. Bensaoula, M. Vileila, and A. Ignateiv, "Tnadem Solar Cell with Imporoved Tunnel Junction", Patent Number: 5,407,491
2. He Lin, Alex Ignatiev, Nai Juan Wu, " Three-terminal non-volatile ferroelectric/superconductor thin film field effect transistor" Patent Number: 5,686,745, Nov. 11, 1997
3. S. Q. Liu, N. J. Wu, A. Ignatiev, "A method of observing the objects in an extremely bright background" (Approved by US Patent Office, 1998)
4. N. J. Wu, Y. S. Chen, A. Ignatiev, " Thin film deposition by multi-beam pulsed laser deposition" (Approved by US Patent Office, 1998)
5. N. J. Wu and A. Ignatiev, "Treating Retinal Damage by Implanting Thin Film Optical Detectors", Patent Number: 5,873,901
200. A. Zomorrodian, A. Mesarwi, N. J. Wu and A. Ignatiev, "XPS oxygen line broadening in lead zirconium titanate and related materials," Appl. Surf. Sci., 90, 343 (1995).
1. "Secondary Electron Spectroscopy: A Surface Sensitive Tool," A. Ignatiev and T. N. Rhodin, Am. Lab 5(3), 12 (1973).