94 Prof. Tischler Yaakov Department of Chemistry Member of BINA Photonics Center Research Areas • Coherent coupling in light-matter coupled systems: Organic Lasers, J-aggregates, and Polaritons. • Ultra-high resolution scanning microcopy and spectroscopy. • Applications of ultra-fast non-linear spectroscopy for energy sustainability. • Novel approaches to organic crystal growth and OLED deposition. Abstract In the Device Spectroscopy Laboratory, we use optical spectroscopy to study nanoscale materials such as molecular organics and more generally nanostructured semiconductors, and then devices composed of these materials. Device spectroscopy has two dual aspects. On the one hand, we use spectroscopic techniques, and even develop our own techniques, in order to study nanoscale materials and devices. On the other hand, we design and engineer unique nanoscale devices on order to generate a specific light-matter interaction and/or spectroscopic effect. Monolayer VCSEL laser formed from dielectric mirrors with a monolayer of fluorescence dye molecules sitatued between them providing optical gain. Publications 2021 and 2022 • Rajashree Konar, Bharathi Rajeswaran, Atanu Paul, Eti Teblum, Hagit Aviv, Ilana Perelshtein, Ilya Grinberg, Yaakov Raphael Tischler, Gilbert Daniel Nessim. “CVDAssisted Synthesis of 2D Layered MoSe2 on Mo Foil and Low Frequency Raman Scattering of Its Exfoliated Few-Layer Nanosheets on CaF2 Substrates”. ACS Omega, 2022. • Rajiv Ramanujam Prabhakar, Thomas Moehl, Dennis Friedrich, Marinus Kunst, Sudhanshu Shukla, Damilola Adeleye, Vinayaka H Damle, Sebastian Siol, Wei Cui, Laxman Gouda, Jihye Suh, Yaakov R Tischler, Roel van de Krol, S David Tilley. “Sulfur-Treatment Passivates Bulk Defects in Sb2Se3 Photocathodes for Water Splitting”. Advanced Functional Materials, 2022. • Rena Yitzhari, Omree Kapon, Yaakov R Tischler. “Vibrational Strong Light–Matter Coupling in an Open Microcavity Based on Reflective Germanium Coatings”. The Journal of Physical Chemistry A, 2022. • Vinayaka Harshothama Damle, Hagit Aviv, Yaakov R Tischler. “Identification of Enantiomers Using Low-Frequency Raman Spectroscopy”. Analytical Chemistry, 2022. • Tal Ben Uliel, Eliyahu M Farber, Hagit Aviv, Wowa Stroek, Marilena Ferbinteanu, Yaakov R Tischler, David Eisenberg. “Combining polarized low-frequency Raman with XRD to identify directional structural motifs in a crystalline metal– organic pyrolysis precursor”. Chemical Communications, 2021. • Rajiv Ramanujam Prabhakar, Thomas Moehl, Dennis Friedrich, Marinus Kunst, Sudhanshu Shukla, Damilola Adeleye, Vinayaka H Damle, Sebastian Siol, Wei Cui, Laxman Gouda, Jihye Suh, Yaakov R Tischler, Roel van de Krol, David Tilley. “Unravelling Defect Passivation cartilage”. Advanced Healthcare Materials, 2021, 10, 20014341-17. · R. Konar, S. Das, E. Teblum, A. Modak, I. Perelshtein, J.J. Richter, A. Schechter*, and G.D. Nessim*. “Facile and Scalable Ambient Pressure Chemical Vapor Deposition-Assisted Synthesis of Layered Silver Selenide (β-Ag2Se) on Ag foil as an Oxygen Reduction Catalyst in Alkaline Medium”. Electrochemical Acta, 2021, 370, 137709. · A. Moumen, R. Konar, D. Zappa, E.Teblum, I.Perelshtein, G.D. Nessim*, and E. Comini*. “Exfoliated 2D fewlayered tungsten di-selenide (2H-WSe2) nanosheets for exceptionally sensitive and selective nitrogen dioxide (NO2) detection at room temperature”. ACS Applied Materials and Interfaces, 2021, 13(3), 43164329. Mechanisms in Sulfur-treated Sb2Se3”. Materials chemistry, 2021. • M Telkhozhayeva, E Teblum, R Konar, O Girshevitz, I Perelshtein, H Aviv,... “Higher Ultrasonic Frequency Liquid Phase Exfoliation Leads to Larger and Monolayer to Few-Layer Flakes of 2D Layered Materials”. Langmuir, 2021. Prof. Toker Yoni Department of Physics Member of BINA Photonics Center Research Areas • Action Spectroscopy of Isolated Biochromophores • Ion Mobility • Ultrafast dynamics of excited states • Cluster Physics Abstract The action spectroscopy laboratory studies biomolecules and clusters in the gas phase – which allows to arrive at a fundamental understanding of their basic properties. We have performed fundamental studies of the retinal chromophore in goal of understanding its color tuning mechanism, and isomerization properties. We are studying clusters of biomolecules and championing them as novel tools for action spectroscopy. We are also performing laboratory astrophysics measurements on small metal ions. Publications 2021 and 2022 · Y Toker, LH Andersen. “Gas-phase studies of the retinal protonated Schiff base chromophore”. The European Physical Journal D, 2021.
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