Etgar Lioz

Professor of Chemistry
Key words: Solar cells, Materials, Nanomaterials, Perovskite
• Post-doctoral fellowship 2012, at Ecole polythecnique fédérale de Lausanne (EPFL), Dept. of Chemistry and Chemical Engineering. Host: Prof. Michael Grätzel at the laboratory of photonic and interfaces.
• PhD 2009 Nanoscience and Nanotechnology program (A prestige program for which individuals are selected) / Chemistry, Technion–Israel Institute of Technology, Haifa, Israel. Thesis Advisors: Professor Efrat Lifshitz and Professor Rina Tannenbaum. Direct
• B.Sc., 2005, Chemical Engineering, Technion–Israel Institute of Technology, Haifa, Israel. Bachelor of Science in Chemical Engineering, Cum Laude.
Office: 
Los Angeles 37
Phone: 
02 6585 325
Fax: 
02 5618 033
Research Focus: 

Our research is concentrated on the design and production of new excitonic solar cells, combining radically new materials with novel architectures.



Specific topics related to photovoltaic cells and nanotechnology are listed below:


-         The interface and the interaction of hybrid Organic/ Inorganic Molecular   materials.

-         The electronic properties of photo-absorber and their grain boundaries through Surface photovoltage spectroscopy

-         Synthesis of hybrid materials at low temperature.

-         Enhancing the efficiency of excitonic solar cells through the design of the working electrode.


-         Design and control the inorganic sensitizer structure and properties in order to improve the PV parameters.


-         New excitonic solar cells structures/architectures.

See some examples of our recent activities are summarized in the table below:

 

 

 

 

 

 

 

 

Hole conductor free perovskite based solar cells

Planar hole conductor free perovskite based solar cells

 

 

 

 

 

 

 

 

 

 

 

Cross sectional SEM image of HTM free perovskite solar cell. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   Cross section of SEM image of HTM free

       planar perovskite solar cell fabricated using spray deposition

 

Flexible perovskite solar cell

Organic-Inorganic perovskite QDs

 

 

 

 

 

 

 

 

 

Low temperature flexible perovskite based solar cell.

 

 

 

 

 

 

 

 

 

Colloidally synthesized CsPbBr3 nanoparticles with side lengths of 10-20 nm.

Nanoparticle absorption onset is at 520 nm and strong luminescence peaks at 515 nm

 

Selected Publications: 

1.      Tzofia Englman, Eyal Terkieltaub, Lioz Etgar. "High open circuit voltage in Sb2S3/metal oxide-based solar cells", The Journal of Physical Chemistry C, 2015, DOI: 10.1021/acs.jpcc.5b04231.

2.      Sigalit Aharon, Michael Layani, Bat-El Cohen, Efrat Shukrun , Shlomo Magdassi, Lioz Etgar. "Self-assembly of perovskite for fabrication of semi-transparent perovskite solar cells", Advanced Materials Interfaces, 2015, DOI: 10.1002/admi.201500118.

3.      Alexander Dymshits, Amit Rotem and Lioz Etgar " High voltage in hole conductor free organo metal halide perovskite solar cells" J. Mater. Chem. A, J. Mater. Chem. A, 2014,2, 20776-20781 

4.      Sigalit Aharon, Shany Gamliel, Bat El Cohen and  Lioz Etgar. "Depletion region effect of highly efficient hole conductor free CH3NH3PbI3 perovskite solar cells" Phys. Chem. Chem. Phys, 2014,16, 10512-10518.

5.      Walleed Abu Laben, Lioz Etgar. “Depleted hole conductor-free lead halide iodide heterojunction solar cell” Energy Environ. Sci., 2013,6,3249-3253. 

6.      Lioz Etgar, Gao Peng, Zhaosheng Xue, Bin Liu, Md K. Nazeeruddin, Michael Grätzel, “Mesoscopic CH3NH3PbI3/TiO2 heterojunction solar cell”. Journal of the American Chemical Society, 2012, 134,17396-17399.