Los Alamos National Laboratory
Nanotechnology and Advanced Spectroscopy Team

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Istvan Robel

Istvan Robel

Phone: 505-665-1462
Email: robel@lanl.gov

Professional Career

  • 2010-Present, Staff Member, Los Alamos National Laboratory
  • 2007-2010, Postdoctoral Research Associate, Los Alamos National Laboratory
  • 2006-2007, Postdoctoral Research Associate, Argonne National Laboratory

Education

  • 2006: Ph.D. in Physics, University of Notre Dame
  • 2000: B.S. in Physics, Babes-Bolyai University, Romania

Current Research:

My current research focuses on the study of the excitonic properties of semiconductor nanocrystals such as Ge, Si, and PbSe from the perspective of solar energy conversion.


Previous Research:

In my previous research we have investigated charge transfer processes in nanoscale heterostructures designed for renewable energy applications.


Awards

  • Los Alamos Achievement Award, 2008
  • ISI Fast Breaking Paper in Chemistry, 2007
  • Kaneb Teaching Award, Notre Dame, 2004
  • Merit Scholarship of the Romanian Ministry of Education, Babes-Bolyai University, 1997-2000

Selected Publications

  • B. N. Pal, I. Robel, A. Mohite, R. Laocharoensuk, D. J. Werder, and V. I. Klimov, High-Sensitivity p-n Junction Photodiodes Based on PbS Nanocrystal Quantum Dots, Adv. Funct. Mater. 22, 1741 (2012)
  • L. A. Padilha, I. Robel, D.C. Lee, P. Nagpal, J. M. Pietryga, and V. I. Klimov, Spectral Dependence of Nanocrystal Photoionization Probability: The Role of Hot-Carrier Transfer, ACS Nano 6, 5045 (2011)
  • D.C. Lee, I. Robel, J. M. Pietryga, V. I. Klimov, Infrared-active heterostructured nanocrystals with ultralong carrier lifetimes, J. Am. Chem. Soc. 132, 9960 (2010)
  • I. Robel, R. Gresback, U. Kortshagen, R. D. Schaller, V. I. Klimov, Universal size-dependent trend in Auger recombination in direct-gap and indirect-gap semiconductor nanocrystals, Phys. Rev. Lett. 102, 177404 (2009)
  • I. Robel, M. Kuno, and P. V. Kamat, Size-dependent electron injection from excited CdSe quantum dots into TiO2 nanoparticles, J. Am. Chem. Soc. 129, 4136 (2007)
  • I. Robel, V. Subramanian, M. Kuno, P. V. Kamat,  "Quantum dot solar cells. Harvesting light energy with CdSe nanocrystals molecularly linked to mesoscopic TiO2 films",  J. Am. Chem. Soc. 128, 2385 (2006)
  • I. Robel, B. A. Bunker, P. V. Kamat, M. Kuno, "Exciton recombination dynamics in CdSe nanowires: Bimolecular to three-carrier Auger kinetics", Nano Lett. 6, 1344 (2006)
  • I. Robel, B. A. Bunker, P. V. Kamat, "Single-walled carbon nanotube-CdS nanocomposites as light-harvesting assemblies: Photoinduced charge-transfer interactions" Adv. Mater. 17, 2458 (2005)

August 2010

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