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Curriculum Vitae

Current position

Postdoctoral fellow with Prof. Emily Weiss, at the Department of Chemistry, Northwestern University, Evanston, IL (Sep. 2013 onwards).
Studying electronic ratcheting mechanisms, for improving energy conversion devices.

 

Education

  • Ph.D. in Chemistry (2013), Weizmann Institute of Science, Rehovot, Israel. Dissertation title: “Interaction of Localized Surface Plasmon Resonance Transducers with Dielectric and Fluorescent Materials”; Advisor: Prof. Israel Rubinstein
  • M.Sc. in Chemistry (2009), Weizmann Institute of Science, Rehovot, Israel. Dissertation title: “Distance Sensitivity in Localized Surface Plasmon Resonance (LSPR) Systems”; Advisor: Prof. Israel Rubinstein
    • Three-month rotations with:
      • Prof. Michael Bendikov - electrochromic conducting polymers
      • Prof. Leeor Kronik - density functional theory computations
      • Prof. Israel Rubinstein - coordination chemistry layer-by-layer assemblies, plasmonic transducers
  • B.Sc. in Chemistry, summa cum laude (2007), Tel Aviv University, Israel. Undergraduate research project: “Lithium cell electrode fabrication” (Prof. Emanuel Peled)

 

Journal publications:

  1. How to drive a flashing electron ratchet to maximize current, Ofer Kedem, Bryan Lau, and Emily A. Weiss, Nano Lett., 2017, 17, 5848–5854
  2. A Light-Responsive Organic Flashing Electron Ratchet. Ofer Kedem, Bryan Lau, Mark A. Ratner, and Emily A. Weiss. Proc. Natl. Acad. Sci. U.S.A., 2017, 114, 8698-8703
  3. Mechanisms of Symmetry Breaking in a Multidimensional Flashing Particle Ratchet. Ofer Kedem, Bryan Lau, and Emily A. Weiss. ACS Nano, 2017, 11, 7148–7155
  4. A Silicon Ratchet to Produce Power from Below-Bandgap Photons. Bryan Lau, Ofer Kedem, Mohamad Kodaimati, Mark A. Ratner, and Emily A. Weiss. Adv. Energy Mater., 2017, Early view
  5. An Introduction to Ratchets in Chemistry and Biology. Bryan Lau*, Ofer Kedem*, James Schwabacher, Daniel Kwasnieski and Emily A. Weiss. Mater. Horiz., 2017, 4, 310-318
  6. Identification of Two Mechanisms for Current Production in a Biharmonic Flashing Electron Ratchet. Bryan Lau, Ofer Kedem, Mark A. Ratner, and Emily A. Weiss. Phys. Rev. E, 2016, 93, 062128
  7. Distance-Dependent Fluorescence of Tris(bipyridine)ruthenium(II) on Supported Plasmonic Gold Nanoparticle Ensembles. Ofer Kedem, Wendel Wohlleben, and Israel Rubinstein. Nanoscale2014, 6, 15134-15143
  8. Critical Issues in Localized Plasmon Sensing. Ofer Kedem, Alexander Vaskevich, and Israel Rubinstein. J. Phys. Chem. C, 2014, 118, 8227-8244. Invited Feature Article, featured on the cover
  9. Stabilization of Metal Nanoparticle Films on Glass Surfaces Using Ultrathin Silica Coating. Julia Chaikin, Ofer Kedem, Jennifer Raz, Alexander Vaskevich, and Israel Rubinstein. Anal. Chem., 2013, 85, 10022-10027
  10. Oscillatory Behavior of the Long-Range Response of Localized Surface Plasmon Resonance Transducers. Ofer Kedem, Takumi Sannomiya, Alexander Vaskevich, and Israel Rubinstein. J. Phys. Chem. C, 2012, 116, 26865–26873
  11. Comparative Assessment of the Sensitivity of Localized Surface Plasmon Resonance Transducers and Interference-Based Fabry-Pérot Transducers. Ofer Kedem, Alexander Vaskevich, and Israel Rubinstein, invited contribution to Special Issue: “Plasmonic Sensors”. Ann. Phys. (Berlin), 2012, 524, 713-722
  12. Improved Sensitivity of Localized Surface Plasmon Resonance Transducers Using Reflection Measurements. Ofer Kedem, Alexander Vaskevich, and Israel Rubinstein. J. Phys. Chem. Lett., 2011, 2, 1223–1226
  13. Sensitivity and Optimization of Localized Surface Plasmon Resonance Transducers. Ofer Kedem, Alexander B. Tesler, Alexander Vaskevich, and Israel Rubinstein. ACS Nano, 2011, 5, 748–760

 * - equal contribution

 

Invited book chapter

  • Long Range Metal Enhanced Fluorescence. Ofer Kedem. In Surface Plasmon Enhanced, Coupled and Controlled Fluorescence, Ed: Chris D. Geddes, Wiley & Sons, 2017.

 

Selected conference presentations

  1. “A Light-Responsive Organic Flashing Electron Ratchet” (oral). Canadian Society for Chemistry 100th Meeting, Toronto (May 2017)
  2. “Ratcheting of Photo-generated Carriers in an Organic Bulk-heterojunction” (oral). Israel Vacuum Society 34th Annual Conference, Beer-Sheva (Sep. 2016)
  3. “Electronic Ratcheting in an Organic Photovoltaic Material” (oral). Israel Chemical Society 2015, Tel Aviv (Feb. 2015)
  4. “Distance Dependent Fluorescence Enhancement and Quenching of Tris(bipyridine)ruthenium(II) by Plasmonic Au Nanoparticle Arrays” (poster). Israel Chemical Society 2013, Tel Aviv (Feb. 2013)
  5. “The Origin of Oscillations in the Long-range Response of Localized Surface Plasmon Resonance Transducers” (oral). Materials Research Society Fall Meeting 2012, Boston, MA (Nov. 2012)
  6. “Distance Dependent Fluorescence Enhancement and Quenching by Gold Nanostructures” (poster). Plasmonics Gordon Research Seminar and Conference (GRS, GRC), Colby College, Waterville, ME (Jun. 2012)
  7. “Distance Dependent Fluorescence Quenching by Gold Nanostructures” (poster). Israel Chemical Society 2012, Ramat Gan (Feb. 2012)
  8. “Distance Dependence in Localized Surface Plasmon Resonance Systems” (oral). JCF Frühjahrssymposium 2011, Erlangen, Germany (Mar. 2011)
  9. “Optimization of Localized Surface Plasmon Resonance (LSPR) transducers” (poster). Israel Chemical Society 2011, Tel Aviv (Feb. 2011)
  10. “Improved Sensitivity of Localized Surface Plasmon Resonance Transducers Using Reflection Measurements” (poster). Nano Israel 2010, Jerusalem (Nov. 2010)
  11. “Distance Sensitivity in Localized Surface Plasmon Resonance Systems” (poster). Israel Vacuum Society 2008, Tel Aviv (Oct. 2008)