Prof. Efrat Lifshitz

Faculty:

Chemistry

Main energy field:

Renewable Energy Sources

About:

Ph.d 1981-1984, The Univ. of Michigan, USA, Physical Chemistry, ESR, PL of low dimensional solids.
M.Sc. 1979-1981, The Univ. of Michigan, USA, Physical Chemistry.
B.Sc. 1976-1979, The Hebrew University of Jerusalem, Israel, Chemistry.

2005- Present Prof., Technion-Israel Institute of Technology, Israel. Research Area: Wires, rods, multipods, magnetooptical spectroscopy.

2006 Visiting Prof., Lyon University, France. Research Area: Nanocrystal devices.

1996 Visiting Prof.,The University of California, Berkley, USA. Research Area: Colloidal semiconductor nanocrystals.

1996-2005 Assoc. Prof., Nanocrystals, PL, ODMR, microwave modulated-PL, Technion, Israel.

1990-1996 Assoc. Prof., Nanocrystals of layered semiconductors, PL and ODMR, Technion, Israel.

1985-1990 Researcher, ODMR of bulk semiconductors, The University of Michigan, USA.

Research Area in Energy:

Photovoltaics

Research Interests:

Quantum dots, wires and rods, heterostructures, organic thin films, spectroscopy of solids, optically detected magnetic resonance, microwave absorption, modulated optical spectroscopy, double beam optical spectroscopy, linear and circular polarized photoluminescence, single-dot spectroscopy (-photoluminescence), scanning tunneling spectroscopy, atomic force microscopy (AFM) and combined AFM--photoluminescence.

Selected Publications:

List of Publications 2004-2009

Sashchiuk, A.; Amirav, L.; Bashouti, M.; Krueger, M.; Sivan, U.; Lifshitz, E., “PbSe nanocrystal assemblies: synthesis and structural, optical, and electrical characterization”. Nano Lett. 2004, 4(1), 159-165.

Langof, L.; Fradkin, L.; Ehrenfreund, E.; Lifshitz, E.; Micic, O. I.; Nozik, A. J., “Colloidal InP/ZnS core-shell nanocrystals studied by linearly and circularly polarized photoluminescence”. Chem. Phys. 2004, 297(1-3), 93-98.

Lifshitz, E.; Fradkin, L.; Glozman, A.; Langof, L., “Optically detected magnetic resonance studies of colloidal semiconductor nanocrystals”. Annual Review of Physical Chemistry 2004, 55, 509-557 (Invited Review).

Sirota, M.; Galun, E. Krupkin, V. Glushko, A.; Kigel, A.; Brumer, M.; Sashchiuk, A.; Amirav, L.; Lifshitz, E., “IV-VI semiconductor nanocrystals for passive Q-switch in IR”. In “Monophotonic Materials” 2004, 5510, 9-16.

Saraidarov, T.; Reisfeld, R.; Sashchiuk, A.; Lifshitz, E., “Synthesis and characterization of PbS nanocrystallites organized into different morphological assemblies”. J. Non-Cryst. Sol. 2004, 345&346, 698-702.

Fradkin, L.; Langof, L.; Lifshitz, E.; Gaponik, N.; Rogach, A.; Eychmüller, A.; Weller, H.; Micic, O. I.; Nozik, A. J., “A direct measurement of g-factors in II-VI and III-V core-shell nanocrystals”. Physica E: Low-Dimensional Systems & Nanostructures 2005, 26(1-4), 9-13.

Amirav, L.; Amirav, A.; Lifshitz, E., “A Spray-Based Method for the Production of Semiconductor Nanocrystals”. J. Phys. Chem. B 2005, 109(20), 9857-9860.

Saraidarov, T.; Reisfeld, R.; Sashchiuk, A.; Lifshitz, E., “Nanocrystallites of lead sulfide in hybrid films prepared by sol-gel process”. J. Sol-Gel Scie. & Technol. 2005, 34(2), 137-145.

Brumer, M.; Kigel, A.; Amirav, L.; Sashchiuk, A.; Solomesch, O.; Tessler, N.; Lifshitz, E., “PbSe/PbS and PbSe/PbSexS1-x core/shell nanocrystals”. Adv. Funct. Mater. 2005, 15(7), 1111-1116.

Schaafsma, T.; Dag, I.; Sitters, R.; Glasbeek, M.; Lifshitz, E., “Spectroscopy and Photophysics of Self-Organized Zinc Porphyrin Nanolayers. 3. Fluorescence Detected Magnetic Resonance of Triplet States”. J. Phys. Chem. B 2005, 109(36), 17047-17054.

Kigel, A.; Brumer, M.; Sashchiuk, A.; Sirota, M.; Galun, E.; Lifshitz, E., “Synthesis, characterization and the use of PbSe/PbS and PbSe/PbSexS1-x core-shell nanocrystals as saturable absorbers in passively switched near infra-red lasers”. In “Physical Chemistry of Interfaces and Nanomaterials IV “2005, 5929, 59290F/1-11.

Osovsky, R.; Shavel, A.; Gaponik, N.; Amirav, L.; Eychmüller, A.; Weller, H.; Lifshitz, E., “Electrostatic and Covalent Interactions in CdTe Nanocrystalline Assemblies”. J. Phys. Chem. B 2005, 109(43), 20244-20250.

Kigel, A.; Brumer, M.; Sashchiuk, A.; Amirav, L.; Lifshitz, E., “PbSe/PbSexS1-x core-alloyed shell nanocrystals”. Materials Science & Engineering, C: Biomimetic and Supramolecular Systems 2005, C25(5-8), 604-608.

Bashouti, M.; Sashchiuk A.; Amirav, L.; Berger, S.; Eisen, M.; Krueger, M.; Sivan, U. Lifshitz, E., “Synthesis and Characterization of PbSe Nanocrystals Assemblies.” Chapter N 9 in book “Nanoparticles Assemblies and Superstructures”. Edited by Kotov, Nicholas, and Publisher: CRC Press LLC, Boca Ration, Los Angeles, USA 2006, 207-224.

Bashouti, M.; Salalha, W.; Brumer, M.; Zussman, E.; Lifshitz, E., “Alignment of colloidal CdS nanowires embedded in polymer nanofibers by electrospinning”. ChemPhysChem 2006, 7(1), 102-106.

Lifshitz, E.; Sashchiuk, A.; Kigel, A.; Brumer M.; Bashouti, M.; Amirav L., “PbSe Nanocrystals: From Spherical Core-shell Structures to Rods, Wires, Tetrapods, and Assemblies”, Invited Chapter, Chapter N 8 in “Handbook of Semiconductor Nanostructures and Nanodevices” Edited by A.A. Balandin and K. L. Wang, American Scientific Publisher 25650, North Lewis Way, Stevenson Ranch, California 01381-1439, USA 2006, 241-265.

E. Lifshitz*, “Synthesis and Characaterization of PbSe Nanocrystals Assemblies”, in Nanoparticles Assemblies and Superstructures, (Ed. N. Kotov, Publisher, CRC Press LLC Boca Ration, Los Angeles) Invited Chapter (2006), 9, 207-224

Solomeshch, O.; Kigel, A.; Brumer, M.; Sashchiuk, A.; Medvedev, V.; Aharoni, A.; Razin, A.; Eichen, Y.; Banin, U.; Lifshitz, E.; Tessler, N., “Optoelectronic properties of polymer-nanocrystal composites active at near-infrared wavelengths”. J. Appl. Phys. 2006, 99(7), 079901/1-8.

Alon-Braitbart, S.; Poem, E.; Fradkin, L.; Akopian, N.; Vilan, S.; Lifshitz, E.; Ehrenfreund, E.; Gershoni, D.; Gerardot, B. D.; Badolato, A.; Petroff, P. M., “Magneto optics of single photons emitted from single InAs/GaAs self-assembled quantum dots in a planar microcavity”. Physica E: Low-Dimensional Systems & Nanostructures 2006, 32(1-2), 127-130.

Brumer, M.; Sirota, M.; Kigel, A.; Sashchiuk, A.; Galun, E.; Burshtein, Z. and Lifshitz, E., “PbSe core, PbSe/PbS and PbSe/PbSexS1-x core-shell nanocrystals as saturable absorbers in passively Q-switched near-infrared laser”. Appl. Opt. 2006, 45(28), 7488-7497.

Amirav, L.; Lifshitz, E., “Spray-Produced Coral-Shaped Assemblies of MnS Nanocrystal Clusters”. J. Phys. Chem. B 2006, 110(42), 20922-20926.

Lifshitz, E.; Brumer, M.; Kigel, A.; Sashchiuk, A.; Bashouti, M.; Sirota, M.; Galun, E.; Burshtein, Z.; Le Quang, A. Q.; Ledoux-Rak, I. and Zyss, J., “Air-stable PbSe/PbS and PbSe/PbSexS1-x core-shell nanocrystals quantum dots and their applications”. J. Phys. Chem. B 2006, 110(50), 25356-25365.

Kigel, A.; Brumer, M.; Amirav L.; Sashchiuk A.; Lifshitz, E., “Synthesis and properties of PbSexS1-x alloyed nanocrystals”. Proc of SPIE, 2006, V. 6596, p. 65960H-1-6.

Osovsky, R.; Kloper, V.; Kolny-Olesiak, J.; Sashchiuk, A.; Lifshitz, E., “A new approach for the preparation of High quality CdTe Nanocrystals and their Optical Characterization”. In “ECS Transaction” 2006, 2(20), 79-86.

Kloper, V.; Osovsky, R; Kolny-Olesiak, J.; Sashchiuk, A.; Lifshitz, E., “The growth of CdTe nanocrystals using in situ formed Cd0 crystalline particles”. J. Phys. Chem. C 2007, 111(36), 10336-10341.

Etgar, L.; Lifshitz, E.; Tannenbaum, R., “Hierarchical Conjugete Structure of γ-Fe2O3 nanoparticles and PbSe quantum dots for Biological applications, J. Phys. Chem. C 2007, 111, 6238-6244.

Kolny-Olesiak, J.; Kloper, V.; Osovsky, R.; Sashchiuk, A.; Lifshitz, E., “Synthesis and characterization of brightly photoluminescent CdTe nanocrystals”. Surface Science 601 2007, 2667-2670.

Saraidarov, T.; Reisfeld, R.; Sashchiuk, A.; Lifshitz, E., “Synthesis and characterizations of PbS nanorods and nanowires”. Physica E: Low-Dimensional Systems & Nanostructures 2007, 37(1-2), 173-177.

Saraidarov, T.; Gevorgian, A.; Reisfeld, R.; Sashchiuk A.; Bashouti M.; Lifshitz, E., “Synthesis, structural, and Electrical Characterization of PbS NCs in Titania Sol-Gel Films”. J. of Sol-Gel Scie. & Technol. 2007, 44(2), 87-95.

Osovsky R.; Kloper V.; Kolny-Olesiak J.; Sashchiuk A.; Lifshitz E., “The influence of small deviation from a spherical shape on the electronic and optical properties of CdTe nanocrystal quantum dots”. J. Phys. Chem. C 2007, 111(28), 10841-108.

Lifshitz, E.; Eychmueller, A., “Spectroscopic investigations on II-VI-semiconductor nanocrystals and their assemblies”. Journal of Cluster Science 2007, 18(1), 5-18.

Bartnik, A. C.; Wise, F. W.; Kigel, A.; Lifshitz, E., “Electronic structure of PbSe/PbS core-shell quantum dots”. Phys. Rev. B 2007, 75, 245424.

Etgar L.; Lifshitz E.; Tannenbaum R, “Synthesis of Water Soluble PbSe Quantum Dots¨. Mater. Res. Soc. Symp. Proc. Vol. 959, 2007, Mat. Res. Soc.0959-M03-03.

Bashouti, M.; Lifshitz, E., “Colloidal PbS Ribbons, Wires, Octa-pods and Hollowed Cubes”. Inorganic Chemistry 2008, 47(2), 678-682.

Dorfs, D.; Osovsky, R.; Brumer, M.; Lifshitz E.; Eychmüller, A., “Ternary CdTe/CdS/CdSe quantum dots- a Type II nanoheterostructure with tunable charge carrier separation”. Small 2008, 4(8), 1148-1152.

Amirav, L.; Lifshitz, E., “Thermospray: A Method for Producing High Quality Semiconductor Nanocrystals”. J. Phys. Chem. C 2008, 112(34), 13105-13113.

Etgar L.; Lifshitz E.; Tannenbaum R., “Synthesis of Water Soluble PbSe
Quantum DotsӬ J. Mat. Res. 2008, Vol. 23(4), 899-903.

Lifshitz, E.; Kigel, A.; Brumer, M.; Etgar, L.; Kloper, V.; Bashouti, M.; Sashchiuk, A.; Tennenbaum R.; Sirota, M.; Galun, M.; Burshtein, Le Quang, A. Q.; Ledoux-Rak, Zyss, I., “PbSe core, PbSe/PbS and PbSe/PbSexS1-x Core-Shell Nanocrystal Quantum Dots: Properties and Applications”, “Handbook for Self-Assembled Semiconductor Nanostructures for Novel Devices in Photonics and Electronics”. Edited by Mohamed Henini and Publisher: ISBN: 978-0-08-046325-4 Copyright 2008, Elsevier Inc. Academic Press. 749-772.

Saraidarov, T.; Reisfeld, R.; Zigansky, E.; Sashchiuk, A.; Lifshitz, E., “Electrical conductivity of doped porous glasses as possible sensors for oxygen”. Optica Applicata”. 2008, 38(1), 109-117.

Etgar L.; Assaraf Y. G.; G. Leitus, G.; Fradkin L.; Tannenbaum R; Lifshitz E., ” Optical and magnetic properties of PbSe quantum dots – -Fe2O3 nanoparticles conjugate structures”. 2008, submitted to ACS Nano.

Kigel, A.; Brumer, M.; Maikov, G.; Sashchiuk, A.; Lifshitz, E., “The ground-state exciton lifetime of PbSe nanocrystal quantum dot”, in “Superlattices and Microstructures”, Vol 46, 2009, pp 272-276.

Etgar L., Leitus G., Fradkin L., Assaraf Y.G., Tannenbaum R. “Optical and Magntic Properties of Conjugate Structures of pbSe Quantum Dots and -Fe2O3 Nanoparticles”, ChemPhysChem. Online, July 2009.

Osovsky, R.; Cheskis, D.; Kloper, V.; Sashchiuk, Kroner M., A.; Lifshitz, E., “Continuous wave pumping of multiexciton bans in the photoluminescence spectrum of a single CdTe-CdSe core-shell colloidal quantum dots”. Phys. Rev Lett. 2009, 102, 197401.

Etgar L.; Nahmani, A,; Tannenbaum, A.; Lifshitz, E.; Tannenbaum, R. “Trajectory Control of PbSe-Fe2O3 Nanoplatforms under Viscous Fluids Flow for Active Cell Targeting.” Phys. Rev. E, 2009, (to be published)

Kigel A., Brumer M., Maikov G., A. Sashchiuk, E. Lifshitz, ”Thermally activated photoluminescence in lead selenide colloidal quantum dots”, SMALL, 2009, 5, 1675.

Patents
1. Galun, E.; Lifshitz, E.; Sirota, M.; Krupkin, V.; Sashchiuk, A., “Passive Q-switches for lasers and their production and lasers employing them”. PCT Int. Appl. (2004) 51 pp.
2. Lifshitz, E.; Sashchiuk, A.; Kigel A.; Brumer-Gilary, M.; Amirav, L., “Core-alloyed shell semiconductor nanocrystals”. PCT Int. Appl. (2006) 29 pp.
3. Amirav, L.; Lifshitz, E., “Spray method for producing semiconductor nanoparticles”. PCT Int. Appl. (2006) 28 pp.
4. E. Lifshitz*, V. Hillerius, “The Use of IV-VI Semiconductor Core-Shell Quantum Dots in Photovoltaic Cells” (filed November 2008)