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Department of Chemistry at FAS, AUB
 
Dr. Lara Halaoui

Office: Chemistry 524
Phone: 3996
E-mail:
lh07@aub.edu.lb
Personal Web Page


Research

The central motivation of our work is to explore the unique electronic, structural, and photonic effects that emerge at the nanoscale to potentially enhance the conversion of light to electrical and chemical energy, the conversion of chemical fuel to electrical energy, and to enhance catalysis and analysis.  We explore the effects of slowing light in photonic crystals and disordered media on enhancing solar energy conversion in dye sensitized solar cells and in quantum dot solar cells.  We also study the photoelectrochemical behavior of quantum dot assemblies in polyelectrolytes with an interest in the effects of quantum confinement and of the nanoparticle surface on this behavior.  In another theme, we are interested in electrocatalysis and sensing at the nanoscale, and study the effects of nanoparticle size, shape, and surface modification on reactivity at metal nanoparticles.

Selected Publications

  • M. El. Harakeh, L. I. Halaoui. Enhanced Conversion of Light at TiO2 Photonic Crystals to the Blue of a Stop Band and at TiO2 Random Films Sensitized with Q-CdS: Order and Disorder. J. Phys.Chem. C. 114, 2806-2813 (2010).
  • M. El Harakeh, L. Alawiyeh, S. Saouma, L. I. Halaoui. Bidirectional Photocurrent Generation at Q-CdS Assembly in Polyelectrolyte Interfaced with Hole Scavengers. Phys. Chem. Chem. Phys. 11, 5962- 5973 (2009).
  • P. Karam, L. I. Halaoui. Sensing of H2O2 at Low Surface Density Assemblies of Pt Nanoparticles in Polyelectrolyte. Anal. Chem. 80, 5441-5448 (2008).
  • Z. Estephan, L. Alawiyeh, L. I. Halaoui. Oxygen Reduction at Nanostructured Electrodes Assembled from Polyacrylate-capped Pt Nanoparticles in Polyelectrolytes. J. Phys. Chem. C 111, 8060-8068 (2007).
  • L. I. Halaoui, N. Abrams, T. E. Mallouk. Increasing the Conversion Efficiency of Dye Sensitized TiO2 Photoelectrochemical Cells by Coupling to Photonic Crystals. J. Phys. Chem. B 109, 6334-6342 (2005).

 

 

 

 

 

 

 

 

 

 

    Dr. Lara Halaoui
    Professor
    Physical Chemistry
     
    Postdoctoral Fellow, University of Texas at Austin, Advisor: Allen J. Bard (1998)
    Ph.D. Duke University, Advisor: Louis A. Coury, Jr. (1993-1997)
    B.S. with Distinction, American University of Beirut (1992)


    Office: Chemistry 524
    Phone: 3996
    E-mail:
    lh07@aub.edu.lb

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