Positions

Academic Staff Head of Academic Studies in Physics

Research Interests:

• Transport and Photo-transport in polycrystalline semiconductors, the influence of the grain boundaries on the conduction properties and its importance to solar cells.
• Transport and photo- transport properties of nano-crystalline silicon, spectroscopy and quantum-size effects. Local measurements of the electric conduction in disordered systems and composite materials.
• Percolation in composite materials.

Representative Publications:

1. Azulay, M. Eylon, O. Eshkenazi, D. Toker, M. Balberg, N. Shimoni, O. Millo, and I.Balberg, “Electrical-Thermal Switching in Carbon-Black–Polymer Composites as a Local Effect” Phys. Rev. Lett. 90, 236601 (2003).
2. Azulay, O. Millo, I. Balberg, H.W. Schock, I. Visoly-Fisher and D. Cahen, "Current routes in polycrystalline CuInSe2 and Cu(In,Ga)Se2 films" Solar Energy Materials & Solar Cells 91 85 (2007).
3. Levi Aharoni, D. Azulay, O. Millo and I. Balberg, "Anomalous photovoltaic effect in nanocrystalline Si/SiO2 composites", Appl. Phys. Lett. 92, 112109 (2008).
4. Steiner, D. Azulay, A. Aharoni, A. Salant, U. Banin, and O. Millo, “Photoconductivity in aligned CdSe nanorod arrays”, Phys. Rev. B, 80, 195308 (2009).
5. D. Azulay, O. Millo, E. Savir, J. P. Conde, and I. Balberg, “Microscopic and macroscopic manifestations of percolation transitions in a semiconductor composite”, Phys. Rev. B, 80, 245312, (2009)