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EACON 2020

EurAsian Conference on Nanophotonics

April 6 – 9, 2020 / Jena, Germany

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Vladimir Sivakov

Leibniz Institute of Photonic Technology, 07745 Jena, GERMANY

Silicon Nanostructures from Hydrogen Generation to Nanomedicine

Hydrogen is regarded to be one of the most promising green energy source in the Industry 4.0. One promising approach to produce hydrogen is photocatalytic water splitting. Herein, I report the top-down formation of porous silicon nanostructures with a sufficient large optical band gap to drive the photocatalytic hydrogen production. The high porosity leads to an increased active surface area and also to an enlarged optical band gap. XANES investigations near the L2,3 core level of silicon and K core level of oxygen as well as XPS studies were performed at the Helmholtz Zentrum Berlin (BESSY II) with the use synchrotron radiation at the Russian-German beamline. The highly porous silicon nanostructures show an optical band gap of up to 1.8-2.3 eV. Furthermore, we observed an increased hydrogen production under additional light irradiation with generation rate of 20,000µl/h at least for the first 4 hours.[1, 2]

The targeted scientific breakthrough is a study of controlled self-organized process of nanosized structures based on porous silica or alumina on silicon surface systems where dielectric pores are selectively filled by plasmonic-active metals (silver and gold) for a formation of dimensionally divided plasmonic nanostructures. The spatially separated plasmonic nanostructures have been synthesized using heavy ion track technology and self-organization of metal atoms in the closed volumes. The first pre-tests of these nanostructures in Raman scattering spectroscopy have been performed. The first data indicates the possibility of detecting ultra-small concentrations of the Ellman’s reagent on silver dendritic nanostructures, the detection limit of 10-15 M was achieved that corresponds that Raman signal enhanced above 13 orders of magnitude. The detecting ultra-small concentrations of the bilirubin on gold nanostructures, the detection limit of 10-9 M, was achieved. The foregoing allows us to conclude that spatially separated plasmonic nanostructures in the pores of the SiO2 template on silicon are a new promising effective plasmon active surfaces for SERS, which are of record high sensitivity and can find application in chemo- and biosensorics. [3, 4]

Cancer diagnostic and therapy challenge the scientific community to design research addressing the urgency of ending cancer. I intend here to carry out an ambitious topic including development and in vitro testing of biocompatible silicon-based nanostructures for cancer therapy and diagnostics. [5-7]

References

  1. S. Yu. Turishchev, E. V. Parinova, A. K. Pisliaruk, D. A. Koyuda, D. Yermukhamed, T. Ming, R. Ovsyannikov, D. Smirnov, A. Makarova, V. Sivakov, Scientific Reports 9, 8066 (2019).
  2. S. Yu. Turishchev, E. V. Parinova, D. N. Nesterov, D. A. Koyuda, V. Sivakov, A. Schleusener, V. A. Terekhov, Results in Physics 9, 1494-1496 (2018).
  3. D. Yakimchuk, E. Kaniukov, V. Bundyukova, L. Osminkina, St. Teichert, S. Demyanov, V. Sivakov, MRS Communications 8(1), 95-99 (2018).
  4. O. Žukovskaja, S. Agafilushkina, V. Sivakov, K. Weber, D. Cialla-May, L. Osminkina, J. Popp, Talanta 202, 171-177 (2019).
  5. E. Tolstik, L. A. Osminkina, Ch. Matthäus, M. Burkhardt, K. E. Tsurikov, U. A. Natashina, V.Y. Timoshenko, R. Heintzmann, J. Popp, V. Sivakov, Nanomedicine, 12(7) 1931-40 (2016).
  6. Shevchenko, Svetlana; Burkhardt, Markus ; Sheval, Eugene ; Natashina, Ulyana ; Große, Christina; Nikolaev, Alexander ; Gopin, Alexander ; Neugebauer, Ute ; Timoshenko, Victor; Vladimir, Sivakov; Osminkina, Liubov, Langmuir 33, 2603−2609 (2017).
  7. M. Gongalsky, G. Gvindzhiliia, K. Tamarov, O. Shalygina, A. Pavlikov, V. Solovyev, A. Kudryavtsev, V. Sivakov, L.A. Osminkina, ACS Omega 46, 10662-10669 (2019).

Further Talks

Andrea Csáki

Microfludic Synthesis of plasmonic Nanoparticles for Sensing Applications

Andrey Turchanin

Controlled growth of transition metal dichalcogenide monolayers for applications in nanoelectronic and nanophotonic devices

Chi Chen

Near Field Spectroscopic Imaging: from Hard to Soft Materials

Chi-How Peng

Cobalt mediated controlled/living radical polymerization: from mechanism understanding to materials application

Chun-Hong Kuo

Bridging Energy and Chemistry via Nanoarchitectonic Engineering at Atomic Scale

Falk Eilenberger

Integration of two-dimensional materials in optical systems for nonlinear optics, sensing, and single photon sources

Frank Setzpfandt

Nonlinear frequency conversion in nanostructured optical systems for application in quantum photonics

Heng-Liang Wu

Controlling the Oxidation State of Cu Electrode and Reaction Intermediates for Electrochemical CO2 Reduction to Ethylene

Kien-Voon Kong

Direct Observation of Reaction Intermediates of Metal-based Therapeutic Agents in Single Living Cell Using TERS

Maria Wächtler

Quantum confined semiconductor nanostructures in light-driven catalysis

Martin Presselt

Supramolecular Control of Optical and Electronical Properties of Two-Dimensional Dye Layers

Po-Chiao Lin

New Environment Sensitive Fluorophores with Color-Tailored Emission: In Vivo Monitoring of Carbonic Anhydrases Expression on Growth of Larval Zebrafish

Shangjr (Felix) Gwo

Plasmonic Metasurface-Enhanced Linear and Nonlinear Processes in Two-Dimensional Semiconductors

Ta-Jen Yen

Empowering Bilayer MoS2 by Engineered Plasmonic Nanostructures for Optoelectronic Applications

Tiow-Gan Ong

Carbodicarbene, Carbogenic Maverick, Not a Moderate!

Volker Deckert

Plasmon Enhanced Probe Spectroscopies – Structural Investigation of Nanoscale Objects

Yi-Tsu Chan

Molecular self-assembly methodology for rational construction of metallosupramolecules with high structural complexity

Yian Tai

Toward a universal polymeric material for electrode buffer layers in organic optoelectronics

Yu-Jung Lu

Controlling Light-matter Interactions at Nanoscale with Plasmonics: From Spontaneous Emission to Lasing