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Lioz Etgar


Dr Lioz Etgar
Principal Investigator


Lioz Etgar obtained his Ph.D. (2009) at the Technion–Israel Institute of Technology and completed post-doctoral research with Prof. Michael Grätzel at EPFL, Switzerland. In his post-doctoral research, he received a Marie Curie Fellowship and won the Wolf Prize for young scientists.

Since 2012, he has been a senior lecturer in the Institute of Chemistry at the Hebrew University. In 2017 he received an Associate Professor position.

Prof. Etgar was the first to demonstrate the possibility to work with the perovskite as light harvester and hole conductor in the solar cell which result in one of the pioneer publication in this field. Recently Prof. Etgar won the prestigious Krill prize by the Wolf foundation.
Etgar’s research group focuses on the development of innovative solar cells. Prof. Etgar is researching new excitonic solar cells structures/architectures while designing and controlling the inorganic light harvester structure and properties to improve the photovoltaic parameters.

Current Research Interests

His 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.

Selected Publications


Lior Iagher and Etgar Lioz. 1/10/2018. “The Effect of Cs on the Stability and Photovoltaic Performance of 2D/3D Perovskite-based Solar Cells.” ACS Energy Lett., DOI: 10.1021/acsenergylett.7b01196. the_effect_of_cs_on_the_stability_and_photovoltaic_performance.pdf

Etgar Lioz. 1/2018. “The merit of perovskite’s dimensionality; can this replace the 3D halideperovskite?.” Energy Environ. Sci., 2018: DOI: 10.1039/C7EE03397D.  c7ee03397d.pdf


Tufan Ghosh, Sigalit Aharon, Etgar Lioz, and Sanford Ruhman. 12/5/2017. “Free carrier emergence and onset of electron-phononcoupling in methylammonium lead halide perovskite films.” Journal of the American Chemical Society, DOI: 10.1021/jacs.7b09508.  free_carrier_emergence_and_onset_of_electron-phonon_coupling_in_methylammonium_lead_halide_perovskite_films.pdf

Daniel Amgar, Małgorzata Wierzbowska, Vladimir Uvarov, Vitaly Gutkin, and Etgar Lioz. 10/23/2017. “Novel Rubidium lead chloride nanocrystals: Synthesis and characterization.” Nano Futures, 1: 021002. novel_rubidium_lead_chloride_nanocrystals.pdf

Stav Rahmany, Michael Layani, Shlomo Magdassi, and Etgar Lioz. 9/24/2017. “Fully functional semi-transparent perovskitesolar cell fabricated at ambient air.” Energy & Fuels, DOI: 10.1039/c7se00383h. fully_functional_semi-transparent.pdf  fully_functional.png

Ravi K. Misra, Bat-El Cohen, Lior Iagher, and Etgar Lioz. 8/28/2017. “Low-Dimensional Organic–Inorganic Halide Perovskite:Structure, Properties, and Applications.” ChemSusChem, 2017,10: 3712 – 3721. low_dimensional_organic_inorganic.png  low-dimensional_organic-inorganic_halide_perovskite.pdf

Bat-El Cohen, Malgorzata Wierzbowska, and Etgar Lioz. 8/10/2017. “High efficiency quasi 2D lead bromide perovskitesolar cells using various barrier molecules.” Sustainable Energy & Fuels, 2017,1: 1935–1943. high_efficiency_quasi_2d_lead_bromide_perovskite.pdf  high_efficiency_quasi_2d_1.png

Y. Huang, S. Aharon, A. Rolland, L. Pedesseau, O. Durand, L. Etgar, and J. Even. 5/19/2017. “Influence of Schottky contact on the C-V and J-V characteristicsof HTM-free perovskite solar cells.” EPJ Photovoltaics, 2017,8: 85501.Abstract  influence_of_schottky_contact_on_the_c-v_and_j-v_characteristics.pdf

Chongwen Li, Yuanyuan Zhou, Yue Chang Li Wang, Yingxia Zong, Etgar Lioz, Guanglei Cui, Nitin P. Padture, and Shuping Pang. 5/19/2017. “Methylammonium-Mediated Evolution of Mixed-Organic-CationPerovskite Thin Films: A Dynamic Composition-Tuning Process.” Angew. Chem. Int. Ed., 2017,56: 7674 –7678. methylammonium.png  methylammonium-mediated_evolution_of_mixed-organic-cation.pdf

Yue Chang, Li Wang, Jiliang Zhang, Zhongmin Zhou, Chongwen Li, Bingbing Chen, Etgar Lioz, Guanglei Cui, and Shuping Pang. 2/10/2017. “CH3NH2 gas induced (110) preferred cesiumcontainingperovskite films with reduced PbI6octahedron distortion and enhanced moisturestability.” J. Mater. Chem. A, 2017,5: 4803–4808.Abstract  ch3nh2_gas_induced_110_preferred_cesiumcontaining.pdf  ch3.png

Bat-El Cohen, Małgorzata Wierzbowska, and Etgar Lioz. 2/3/2017. “High Efficiency and High Open Circuit Voltage in Quasi 2DPerovskite Based Solar Cells.” Advanced Functional Materials, 2017: 1604733.Abstract  high_efficiency_and_high_open_circuit_voltage.png  hight_efficiency_and_hight.pdf

Daniel Amgar, Avigail Stern, Dvir Rotem, Danny Porath, and Etgar Lioz. 1/17/2017. “Tunable Length and Optical Properties of CsPbX3 (X = Cl, Br, I)Nanowires with a Few Unit Cells.” Nano Letters, 2017, 17: 1007−1013.Abstract  tunable_length_and_optical_properties_of_few.png tunable_length_and_optical_properties_of_cspbx3.pdf

David P. Fenning, Mariana I. Bertoni, Yang Shao-Horn, Etgar Lioz, and Shany Gamliel. 2017. “Environmental sensors using metal halide perovskites.” United States of America Provisional application.

Etgar Lioz and Daniel Amgar. 2017. “Rubidium Lead Chloride Nanocrystals.” United States of America Provisional.

Etgar Lioz and Sigalit Aharon. 2017. “TWO DIMENSIONAL ORGANO-METAL HALIDE PEROVSKITENANORODS.” WIPO (World Intellectual Prop Org) WO 2017/153994 Al.


Hadas Naor, Yiftach Divon, Lior Iagher, Etgar Lioz, and David Avnir. 11/14/2016. “Conductive molecularly doped gold films.” J. Mater. Chem. C, 2016,4: 11548--11556.Abstract conductive_molecularly_doped_gold_films.pdf  conductive_molecularly_doped_gold_films.png

Shany Gamliel, Inna Popov, Bat-El Cohen, Vladimir Uvarov, and Etgar Lioz. 11/2016. “Structural and Quantitative Investigation of Perovskite Pore Filling in Mesoporous Metal Oxides.” Crystals, 2016, 6: 149.Abstract  structural_and_quantitative_investigation_of.png structural_and_quantitative_investigation_of.pdf

Daniel Amgar, Sigalit Aharon, and Etgar Lioz. 9/7/2016. “Inorganic and Hybrid Organo-Metal PerovskiteNanostructures: Synthesis, Properties, and Applications.” Advanced Functional Materials, 2016,26: 8576–8593.Abstract  inorganic_and_hybrid_organo-metal_perovskite.pdf

Bat-El Cohen and Etgar Lioz. 9/2016. “Parameters that control and influence the organo-metalhalide perovskite crystallization and morphology.” Front. Optoelectron, 1, 2016,9: 44–52.Abstract parameters_that_control_and_influence_the_organo-metal_halide_perovskite_crystallization_and_morphology.pdf

Yanqi Luo, Shany Gamliel, Sally Nijem, Sigalit Aharon, Martin Holt, Benjamin Stripe, Volker Rose, Mariana I. Bertoni, Etgar Lioz, and David P. Fenning. 8/30/2016. “Spatially Heterogeneous Chlorine Incorporation in Organic−Inorganic Perovskite Solar Cells.” Chemistry of Materials, 18, 2016,28: 6536–6543.Abstract spatially_heterogeneous_chlorine_incorporation_in_organic.pdf spatially_heterogeneous_chlorine_incorporation_in_organic.png

Ravi K. Misra, Sigalit Aharon, Michael Layani, Shlomo Magdassi, and Etgar Lioz. 8/20/2016. “A mesoporous–planar hybrid architecture ofmethylammonium lead iodide perovskite basedsolar cells.” J. Mater. Chem. A, 2016,4: 14423-14429.Abstract  a_mesoporous-planar_hybrid_architecture_of_methylammonium.png  a_mesoporous-planar_hybrid_architecture_of.pdf

Ravi K. Misra, Laura Ciammaruchi, Sigalit Aharon, Dmitry Mogilyansky, Etgar Lioz, Iris Visoly-Fisher, and Eugene A. Katz. 7/2016. “Effect of Halide Composition on the PhotochemicalStability of Perovskite Photovoltaic Materials.” ChemSusChem, 2016, 9: 1 – 7.  effect_of_halide_composition_on_the_photochemical.png effect_of_halide_composition_on_the_photochemical_stability.pdf

Sigalit Aharon and Etgar Lioz. 4/2016. “Two Dimensional Organometal Halide Perovskite Nanorods withTunable Optical Properties.” Nano Lett., 5, 2016,16: 3230–3235.Abstract two_dimensional_organometal_halide_perovskite_nanorods_with.png  two_dimensional_organo-metal_halide_perovskite_nanorods.pdf

Vinay sharma, Sigalit Aharon, Itay Gdor, Chunfan Yang, Etgar Lioz, and Sanford Ruhman. 1/28/2016. “New insights into exciton binding and relaxationfrom high time resolution ultrafast spectroscopy ofCH3NH3PbI3 and CH3NH3PbBr3 films.” J. Mater. Chem. A, 2016,4: 3546-3553.Abstract new_insights_into_exciton_binding_and_relaxation_from_high_time_resolution_ultrafast_spectroscopy_of_ch3nh3pbi3_and_ch3nh3pbbr3_films.png  new_insights_on_exciton_binding_and_relaxation_from.pdf

Miriam Koolyk, Daniel Amgar, Sigalit Aharon, and Etgar Lioz. 1/26/2016. “Kinetics of cesium lead halide perovskitenanoparticle growth; focusing andde-focusing of size distribution.” Nanoscale, 2016,8: 6403-6409.Abstract  kinetics_of_cesium_lead_halide_perovskite_nanoparticle_growth_focusing_and_de-focusing_of_size_distribution.png kinetics_of_cesium_lead_halide_perovskite_nanoparticle_growth_focusing_and_de-focusing_of_size_distribution.pdf

Etgar Lioz. 2016. “Perovskites nanoscrystals (hybrids and inorganic) synthesis, optical and physical properties.” In HANDBOOK OF ORGANIC OPTOELECTRONIC DEVICES. World Scientific.

Sigalit Aharon and Etgar Lioz. 2016. “Hole Conductor Free Organometal Halide Perovskite Solar Cells: Properties and Different Architectures: Principle, Materials and Devices.” In Perovskite Solar Cells, 111-146. World Scientific Publishing Company.

Etgar Lioz. 2016. Hole Conductor Free Perovskite-based Solar Cells. Springer International Publishing.

Bat-El Cohen, Sigalit Aharon, Alex Dymshits, and Etgar Lioz. 2016. “Impact of Antisolvent Treatment on Carrier Density in Efficient Hole-Conductor-Free Perovskite-Based Solar Cells.” J. Phys. Chem. C, 2016, 120: 142-147.Abstract  impact_of_antisolvent_treatment_on_carrier_density_in_efficient_hole-.png impact_of_antisolvent_treatment_on_carrier_density_in_efficient_holeconductor-free.pdf

Etgar Lioz, Shlomo Magdassi, Sigalit Aharon, and Michael Layani. 2016. “Semi-transparent hole conductor free perovskite based solar cells.” WIPO (World Intellectual Prop Org) WO2016110851 A1.


Shany Gamliel, Alex Dymshits, Sigalit Aharon, Eyal Terkieltaub, and Etgar Lioz. 8/14/2015. “Micrometer Sized Perovskite Crystals in Planar Hole Conductor FreeSolar Cells.” J. Phys. Chem. C, 2015, 119: 19722−19728.Abstract  micrometer_sized_perovskite_crystals_in_planar_hole_conductor_free.png micrometer_sized_perovskite_crystals_in_planar_hole_conductor_free_solar_cells.pdf

Etgar Lioz. 8/2015. “Hole-transport material-freeperovskite-based solar cells.” MRS Bulletin, 8, 2015,40: 674-680.Abstract  hole-transport_material-free300x300.png  hole-transport_material-free_perovskite-based_solar_cells.pdf

Sigalit Aharon, Michael Layani, Bat-El Cohen, Efrat Shukrun, Shlomo Magdassi, and Etgar Lioz. 6/2015. “Self-Assembly of Perovskite for Fabrication ofSemitransparent Perovskite Solar Cells.” Adv. Mater. Interfaces, 2015, 2: 1500118.Abstract  full_paperc_2015_wiley-vch_verlag_gmbh_co._kgaa_weinheim1_of_6_1500118wileyonlinelibrary.com_self-assembly_of_perovskite_for_fabrication_of_semitransparent_perovskite_solar_cells.pdf

Tzofia Englman, Eyal Terkieltaub, and Etgar Lioz. 5/21/2015. “High Open Circuit Voltage in Sb2S3/Metal Oxide-Based Solar Cells.” J. Phys. Chem. C, 2015, 119: 12904−12909.Abstract high_open_circuit_voltage_in_sb2s3_metal_oxide-based_solar_cells.png high_open_circuit_voltage_in_sb2s3_metal_oxide-based_solar_cells.pdf

Alex Dymshits, Alex Henning, Gideon Segev, Yossi Rosenwaks, and Etgar Lioz. 3/3/2015. “The electronic structure of metal oxide/organo metal halide perovskite junctionsin perovskite based solar cells.” Nature Scientific Reports, 2015, 5: 8704.Abstract  the_electronoc_structure_of_metal_oxide.pdf

Jon M. Azpiroz, Jesus M. Ugalde, Etgar Lioz, Ivan Infante, and Filippo De Angelis. 1/2015. “The effect of TiO2surface on the electroninjection efficiency in PbS quantum dot solarcells: a first-principles study.” Phys.Chem.Chem.Phys, 2015, 17: 6076--6086.Abstract the_effect_of_tio2_surface_on_the_electron_injection_efficiency_in_pbs_quantum_dot_solar_cells.pdf

Ravi K. Misra, Sigalit Aharon, Baili Li, Dmitri Mogilyansky, Iris Visoly-Fisher, Etgar Lioz, and Eugene A. Katz. 1/2015. “Temperature- and Component-Dependent Degradation of Perovskite Photovoltaic Materials under Concentrated Sunlight.” J. Phys. Chem. Lett., 2015, 6: 326−330. Abstract temperature-_and_component-dependent_degradation_of_perovskite_photovoltaic_materials_under_concentrated_sunlight.pdf

Elham Ghadiri, Bin Liu, Jacques-E. Moser, Michael Grätzel, and Lioz. Etgar. 2015. “Investigation of Interfacial Charge Separation at PbS QDs/(001) TiO2 Nanosheets Heterojunction Solar Cell.” Part. Part. Syst. Charact., 2015, 32: 483-488.  Abstract investigation_of_interfacial_charge_separation_at_pbs_qds.pdf

Etgar Lioz. 2015. “Perovskite schottky type solar cell.” WIPO (World Intellectual Prop Org) WO 2014/097299 Al.

Sigalit Aharon, Alexander Dymshits, Amit Rotem, and Etgar Lioz. 2015. “Temperature dependence of hole conductor freeformamidinium lead iodide perovskite based solarcells.” J. Mater. Chem. A, 2015, 3: 9171-9178.  Abstract temperature_dependence_of_hole_conductor_free_formamidinium_lead_iodide_perovskite_based_solar_cells.pdf


Alex Dymshits, Amit Rotem, and Etgar Lioz. 10/2014. “High voltage in hole conductor free organo metalhalide perovskite solar cells.” J. Mater. Chem. A, 2014, 2: 20776.Abstract high_voltage_in_hole_conductor_free_organo_metal_halide_perovskite_solar_cells.pdf

Etgar Lioz, Peng Gao, Peng Qin, Michael Graetzel, and Mohammad Khaja Nazeeruddin. 6/2014. “A hybrid lead iodide perovskite and lead sulfide QD heterojunction solar cell to obtain a panchromatic response.” J. Mater. Chem. A, 2014, 2: 11586–11590.Abstract a_hybrid_lead_iodide_perovskite_and_lead_sulfide_qd_heterojunction_solar_cell_to_obtain_a_panchromatic_response.pdf

Shany Gamliel and Etgar Lioz. 6/2014. “Organo-metal perovskite based solar cells:sensitized versus planar architecture.” RSC Adv., 2014, 4: 29012-29021.Abstract  organo-metal_perovskite_based_solar_cells.pdf

Sigalit Aharon, Bat El Cohen, and Etgar Lioz. 4/17/2014. “Hybrid Lead Halide Iodide and Lead Halide Bromide in Efficient HoleConductor Free Perovskite Solar Cell.” J. Phys. Chem. C, 2014, 118: 17160−17165.Abstract hybrid_lead_halide_iodide_and_lead_halide_bromide_in_efficient_hole_conductor_free_perovskite_solar_cell.pdf

Sigalit Aharon, Shany Gamliel, Bat El Cohen, and Etgar Lioz. 4/2014. “Depletion region effect of highly efficient holeconductor free CH3NH3PbI3 perovskite solar cells.” Phys.Chem.Chem.Phys., 2014, 16: 10512-10518.Abstract depletion_region_effect_of_highly_efficient_hole_conductor_free_ch3nh3pbi3_perovskite_solar_cells.pdf

Etgar Lioz, Md K. Nazeeruddin, and Michael Grätzel. 2014. “Organo Metal Halide Perovskite Heterojunction Solar Cell and Fabrication Thereof.” WIPO (World Intellectual Prop Org) WO 2014/020499 Al.


Waleed Abu Laban and Etgar Lioz. 9/2013. “Depleted hole conductor-free lead halide iodideheterojunction solar cells.” Energy Environ. Sci., 2013, 6: 3249–3253.Abstract  depleted_hole_conductor-free_lead_halide_iodide_heterojunction_solar_cells.pdf

Etgar Lioz, Guillaume Schuchardt, Daniele Costenaro, Fabio Carniato, Chiara Bisio, Shaik M. Zakeeruddin, Mohammad K. Nazeeruddin, Leonardo Marchese, and Michael Graetzel. 6/2013. “Enhancing the open circuit voltage of dye sensitizedsolar cells by surface engineering of silica particles in agel electrolyte.” J. Mater. Chem. A, 2013, 1: 10142–10147.Abstract enhancing_the_open_circuit_voltage_of_dye_sensitized_solar_cells_by_surface_engineering_of_silica_particles_in_a_gel_electrolyte.pdf

Etgar Lioz. 2/2013. “Semiconductor Nanocrystals as Light Harvesters in Solar Cells.” Materials, 2013, 6: 445-459. Abstract semiconductor_nanocrystals_as_light_harvesters_in_solar_cells.pdf

Etgar Lioz, Diana Yanover, Richard Karel Cˇapek, Roman Vaxenburg, Zhaosheng Xue, Bin Liu, Mohammad Khaja Nazeeruddin, Efrat Lifshitz, and Michael Grätzel. 1/2013. “Core/Shell PbSe/PbS QDs TiO2 Heterojunction Solar Cell.” Adv. Funct. Mater., 2013, 23: 2736–2741. coreshell_pbsepbs_qds_tio2_heterojunction_solar_cell.pdf

Takafumi Fukumoto, Thomas Moehl, Yusuke Niwa, Md. K. Nazeeruddin, Michael Grätzel, and Etgar Lioz. 2013. “Effect of Interfacial Engineering in Solid-State Nanostructured Sb2S3 Heterojunction Solar Cells.” Adv. Energy Mater, 2013, 3: 29–33. effect_of_interfacial_engineering_in_solid-state_nanostructured_sb2s3_heterojunction_solar_cells.pdf

Etgar Lioz, HyoJoong Lee, Md K. Nazeeruddin, and Grätzel Michael. 2013. “Semiconductor quantum dot sensitized TiO2 mesoporous solar cells.” In Colloidal Quantum Dot Optoelectronics and Photovoltaics, 292-309. Cambridge University Press.

Etgar Lioz. 2013. “Thin Film Solar Cells based on Quantum Dots.” In Light Energy Conversion . Wiley-Inter science Series on Nanotechnology.


Etgar Lioz, Peng Gao, Zhaosheng Xue, Qin Peng, Aravind Kumar Chandiran, Bin Liu, Md. K. Nazeeruddin, and Michael Grätzel. 10/2012. “Mesoscopic CH3NH3PbI3/TiO2 Heterojunction Solar Cells.” J. Am. Chem. Soc., 2012, 134: 17396−17399.  mesoscopic_ch3nh3pbi3_tio2_heterojunction_solar_cells.pdf

Etgar Lioz, James S. Bendall, Vincent Laporte, Mark E. Welland, and Michael Graetzel. 9/2012. “Reducing recombination in ZnO photoanodes for dye sensitised solar cellsthrough simple chemical synthesis.” J. Mater. Chem., 2012, 22: 24463–24468. reducing_recombination_in_zno_photoanodes_for_dye_sensitised_solar_cells_through_simple_chemical_synthesis.pdf

Etgar Lioz, Thomas Moehl, Stefanie Gabriel, Stephen G. Hickey, Alexander Eychmu¨ ller, and Michael Gra¨ tzel. 3/2012. “Light Energy Conversion by Mesoscopic PbS Quantum Dots/TiO2 Heterojunction Solar Cells.” ACS Nano, 2012, 4: 3092–3099. light_energy_conversion_by_mesoscopic_pbs_quantum_dots_tio2_heterojunction_solar_cells.pdf

Etgar Lioz, Jinhyung Park, Claudia Barolo, Vladimir Lesnyak, Subhendu K. Panda, Pierluigi Quagliotto, Stephen G. Hickey, Md. K. Nazeeruddin, Alexander Eychmu¨ ller, Guido Viscardi, and Michael Gra¨ tzel. 2/2012. “Enhancing the efficiency of a dye sensitized solar cell due to the energytransfer between CdSe quantum dots and a designed squaraine dye.” RSC Adv., 2012, 2: 2748–2752. enhancing_the_efficiency_of_a_dye_sensitized_solar_cell_due_to_the_energy_transfer_between_cdse_quantum_dots_and_a_designed_squaraine_dye.pdf

Etgar Lioz, Wei Zhang, Stefanie Gabriel, Stephen G. Hickey, Md K. Nazeeruddin, Alexander Eychmüller, Bin Liu, and Michael Grätzel. 1/2012. “High Efficiency Quantum Dot Heterojunction Solar CellUsing Anatase (001) TiO2 Nanosheets.” Adv. Mater., 2012, 24: 2202–2206. high_efficiency_quantum_dot_heterojunction_solar_cell_using_anatase_001_tio2_nanosheets.pdf

Etgar Lioz and Michael Grätzel. 2012. “Solid state PbS Quantum dots /TiO2 Nanoparticles heterojunction solar cell.” MRS Proceedings, 2012, 1390.