• Adjunct Professor, Materials Science and Engineering
  • Distinguished Professor, Physics And Astronomy
  • Adjunct Professor, Physics And Astronomy, The Technion
  • Adjunct Professor, Materials Science and Engineering

Research Statement

My research is focused on the optical, electrical and magnetic properties of organic semiconductor thin films and optoelectronic devices.

Research Keywords

  • Physical-Organic Chemistry


  • “New advances in Organic Spintronics”, invited symposium in the APS March meeting, March 2013, Baltimore, MD. Invited Talk/Keynote, Accepted, 11/2012.
  • “Ultrafast Spectroscopy; artifacts vs. real response”, Optical Probe conference, July 2013, Sheffield UK. Invited Talk/Keynote, Accepted, 11/2012.
  • ”The status of Organic Spintronics 2012”, Plenary talk, SPINOS IV, London, September 2012. Invited Talk/Keynote, Presented, 09/2012.
  • ”Transient spectroscopy of donor-acceptor nano-domains in blends for organic photovoltaic applications”, ICSM 2012, Atlanta, Georgia, July 2012. Invited Talk/Keynote, Presented, 07/2012.
  • ”The magnetic field effect in Organic Diodes”, Optical Probes Conference, Santa Fe, NM, June 2011 . Invited Talk/Keynote, Presented, 06/29/2011.
  • ”Research studies related with Taliani’s”,International Conference for Carlo Taliani retirement, Bologna, Italy, May 2011. Invited Talk/Keynote, Presented, 05/15/2011.

Research Groups

  • Peter Peroncik, Graduate Student. Physics. 09/10/2012 - present.
  • Ryan McLaughlin, Graduate Student. 09/10/2012 - present.
  • Yaxin Zhai, Graduate Student. Physics. 05/10/2012 - present.
  • Eitan Ehrenfreund, Visiting Faculty. Physics. 08/30/2011 - present.
  • Uyen Huynh, Graduate Student. 05/15/2011 - present.
  • Tek Basel, Graduate Student. Physics. 05/15/2010 - present.
  • Bhoj Gautam, Graduate Student. Physics. 08/15/2009 - present. Awards/Scholarships/Stipends: Supported by MRSEC.
  • Ella Olejnik, Graduate Student. Physics. 01/05/2009 - present.

Research Equipment and Testing Expertise

  • Femtosecond lasers CW lasers Optical detected magnetic resonance set-up Photomodulation set-up Fabrication sert ups for organic optoelectronic and magnetic cevices. Contact: At the University , 801-581-8372 , 201 JFB.


  • English, fluent.
  • French, fluent.
  • Hebrew, fluent.
  • Romanian, fluent.

Geographical Regions of Interest

  • Israel
    I have an Adjunct Professor position at the The Technion in Haifa.


  • “Phosphorescence Superradiance in a Pt-containing p-Conjugated Polymers”, Bagrat Khachtryan, Tho D. Nguyen, Z. Valy Vardeny and E. Ehrenfreund, Phys. Rev. B 86, 195203 (2012). Published, 11/2012.
  • “Spin-Enhanced Organic Bulk Heterojunction Photovoltaic Solar Cells”, Ye Zhang, Tek P. Basel, Xiaomei Yang, Debra J. Mascaro, Feng Liu and Z. Valy Vardeny, Nature Communications 3, 1043 (2012). Published, 10/2012.
  • “Isotope effect in the spin response of aluminum tris(8-hydroxyquinoline) based devices”, Tho D. Nguyen, T. P. Basel, Y- J. Pu, X-G. Li, E. Ehrenfreund, and Z.V. Vardeny, Phys. Rev. B 85, 245437 (2012). Published, 09/2012.
  • “Study of Photoexcitations in Poly(3-hexylthiophene) for Photovoltaic Applications”, G. Hukic, T. Basel. S. Singh, and Z. V. Vardeny, Appl. Phys. Lett. 100, 213903 (2012). Published, 09/2012.
  • “Two-step Charge Photogeneration Process in Polymer/Fullerene Blends for Organic Photovoltaic Applications”, S. Singh, B. Pandit, S. Li, D. Laird and Z. V. Vardeny, Phys. Rev. B 85, 205206 (2012). Published, 08/2012.
  • “Magnetic Field Effect on Excited State Spectroscopies in Organic Semiconductor Films”, B. R. Gautam, T. D. Nguyen, E. Ehrenfreund, and Z. V. Vardeny, Phys. Rev. B. 85, 205207 (2012). Published, 08/2012.
  • “Measurement of surface plasmon correlation length differences using Fibonacci deterministic hole arrays”, T. D. Nguyen, A. Nahata and Z. V. Vardeny, Opt. Express 20, 15222 (2012). Published, 08/2012.
  • “Spin-Polarized Organic Light Emitting Diode Based on a Novel Bipolar Spin-Valve”, T. D. Nguyen, E. Ehrenfreund, and Z. V. Vardeny, Science 337, 204 (2012). Published, 05/2012.
  • “Liquid Metal-Based Plasmonics”, J. Wang, S. Liu, Z. V. Vardeny, and A. Nahata, Opt. Express, 20, 2346 (2012). Published, 01/15/2012.
  • “The effects of Charge Injection in Single Wall Carbon Nanotubes Studied by Charge-Induced absorption Spectroscopy”; Appl. Phys. Lett. 98, 263110 (2011). Published, 06/01/2011.
  • “Disorder-Enhanced Transport in Photonic Quasicrystals”, Z. Valy Vardeny and Ajay Nahata, Nature Photonics 5, 453 (2011). Published, 05/30/2011.
  • “Magnetic Field Effects in Polymer Light-emitting Electrochemical Cells”, G. Li, T. D. Nguyen, and Z. V. Vardeny, Appl. Phys. Lett. 98, 263302 (2011). Published, 05/15/2011.
  • “Magneto-conductance of Unipolar and Bipolar Organic Diodes”, T. D. Nguyen, B. R. Gautam, E. Ehrenfreund, and Z. V. Vardeny, Synth. Metals 161, 604 (2011). Published, 01/30/2011.
  • “The Hyperfine Interaction Role in the Spin Response of π-Conjugated Polymer Films and Spin Valve Devices”, Tho D. Nguyen, Golda Hukic-Markosian, Fujian Wang, L. Wojcik, Xiao-Guang Li, Eitan Ehrenfreund, Z. Valy Vardeny, Synth. Metals 161, 598 (2011). Published, 01/30/2011.
  • “Engineering the Properties of Terahertz Filters using Multilayer Aperture Arrays”, T. D. Nguyen, S. Liu, Z. V. Vardeny and A. Nahata, Optics Express 19, 18678 (2011). Published, 01/11/2011.