Institute of Solid State Physics EXAFS Spectroscopy Laboratory
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Latvian Council of Science Projects / LZP Granti



Development of X-ray sensitive hybrid organic-inorganic systems
Organisku-neorganisku hibrīdsistēmu izstrāde rentgenstarojuma detektēšanai

Project coordinator: Dr.phys. A.Kalinko
Total cost: 300 000 EUR
Duration (years): 2020-2022
Funding institution: Latvian Council of Science
Funding number: lzp-2019/1-0071
Acronym: FLPP-2019-1

Organic semiconductors have recently received increasing attention as promising alternatives to inorganic semiconductors. They are relatively inexpensive and easy to manufacture, can be flexible, operate at low voltage (<10V), and have a large surface area. In particular, organic-inorganic hybrid materials, which are the subject of the current project, have great potential for use in radiation detection, enabling unprecedented device architecture and functionality. The aim of the project is to develop and investigate organic-inorganic hybrid materials with potential applications for X-ray detection. The project is compliant with the Latvian Research Priority Area “1.Technologies, materials and system engineering for increased added value products and processes, and cybersecurity”. It also addresses main objectives of Research and Innovation Strategies for Smart Specialisation (RIS3) of Latvia in the area of smart materials, technology and engineering systems (thin layers and coatings).



Results
Publications:

  1. G. Bakradze, A. Kalinko, A. Kuzmin,
    X-ray absorption and Raman spectroscopy studies of tungstates solid solutions ZncNi1-cWO4 (c=0.0-1.0),
    Low Temp. Phys. 46 (2020) 1201-1205.
    Open Access

  2. I. Pudza, A. Anspoks, A. Cintins, A. Kalinko, E. Welter, A. Kuzmin,
    The influence of Zn2+ ions on the local structure and thermochromic properties of Cu1-xZnxMoO4 solid solutions,
    Mater. Today Commun. 28 (2021) 102607.
    Open Access

  3. G. Bakradze, A. Kalinko, A. Kuzmin,
    Evidence of nickel ions dimerization in NiWO4 and NiWO4-ZnWO4 solid solutions probed by EXAFS spectroscopy and reverse Monte Carlo simulations,
    Acta Mater. 217 (2021) 117171.
    Open Access

  4. G. Bakradze, A. Kalinko, A. Kuzmin,
    Chemical-state analyses of Ni, Zn, and W ions in NiWO4-ZnWO4 solid solutions by x-ray photoelectron spectroscopy,
    J. Phys. Chem. Solids 161 (2022) 110425.
    Open Access

  5. I. Pudza, A. Anspoks, G. Aquilanti, A. Kuzmin,
    Revealing the local structure of CuMo1-xWxO4 solid solutions by multi-edge x-ray absorption spectroscopy,
    Mater. Res. Bull. 153 (2022) 111910.
    Open Access

  6. I. Pudza, K. Pudzs, A. Tokmakovs, N. R. Strautnieks, A. Kalinko, A. Kuzmin,
    Nanocrystalline CaWO4 and ZnWO4 tungstates for hybrid organic-inorganic X-ray detectors,
    Materials 16 (2023) 667.
    Open Access

Conferences:
  1. I. Pudza, A. Kalinko, A. Cintins, A. Kuzmin,
    Thermochromic phase transition in CuMo1-xWxO4 solid solutions probed by Resonant X-ray emission spectroscopy at the W L3-edge,
    DESY Photon Science Users´ Meeting, Hamburg, 25-29 January 2021, Online.
    Presentation

  2. I. Pudza,
    Resonant X-ray emission spectroscopy to reveal coordination of W ions in CuMo1-xWxO4 thermochromic materials,
    Bilateral workshop of Taiwan and the Baltic States Research Center on Physics, Riga, 28 April 2021, Online.
    Abstract
    Presentation

  3. I. Pudza, A. Kalinko, A. Cintins, A. Kuzmin,
    Local structure studies of multifunctional CuMoO4 and CuWO4 solid solutions,
    YOUNG MULTIS - Multiscale Phenomena in Condensed Matter, 5-7 July 2021, Online.
    Abstract
    Presentation

  4. I. Pudza, A. Kalinko, A. Cintins, A. Kuzmin,
    XAS and RXES studies of phase transitions in CuMo1-xWxO4 solid solutions,
    International Conference on X-Ray Absorption Fine Structure - XAFS2021 Virtual, Sydney, Australia, 11-13 July 2021, Online.
    Abstract
    Presentation

  5. I. Pudza, A. Kuzmin,
    Treatment of disorder effects in X-ray absorption spectra by reverse Monte Carlo simulations: CuMoO4 case,
    25th IUCr Congress, Prague, Czech Republic, 14-22 August 2021, Online.
    Abstract
    Presentation

  6. K. Pudzs, I. Pudza, N. Strautnieks, A. Tokmakov, A. Kuzmin,
    Study of a hybrid organic-inorganic system for X-ray detection,
    IX International Scientific Conference «ACTUAL PROBLEMS OF SOLID STATE PHYSICS» (APSSP-2021), 22-26 November 2021, Online.
    Abstract
    Poster

  7. I. Pudza, A. Anspoks, A. Cintins, A. Kalinko, R. Chernikov, G. Aquilanti A. Kuzmin,
    Abundant study of local structure peculiarities in Cu1-yZnyMo1-xWxO4 solid solutions,
    DESY Photon Science Users' Meeting 2022, 21-28 January 2022, Online.
    Poster

  8. A. Kuzmin,
    Unraveling the structure of functional materials by EXAFS spectroscopy and reverse Monte Carlo simulations,
    The 4th FRIMS International Symposium on Frontier Materials, 8-9 March 2022, Nagoya, Japan, Online
    Abstract
    Presentation

  9. A. Kalinko, I. Pudza, G. Bakradze, M. A. Naumova, A. Kuzmin,
    Direct observation of crystal field splitting in tungstates by resonant X-ray emission spectroscopy,
    FM&NT-NIBS-2022, July 4-6, 2022, Riga, Latvia.
    Abstract
    Poster

  10. I. Pudza, K. Pudzs, A. Kalinko, G. Bakradze, J. Cipa, A. Tokmakovs, A. Kuzmin,
    The use of tungstate nanoparticles in hybrid X-ray detectors,
    FM&NT-NIBS-2022, July 4-6, 2022, Riga, Latvia.
    Abstract
    Poster

  11. A. Kuzmin, G. Bakradze, I. Pudza, A. Anspoks, A. Kalinko, E. Welter,
    Local atomic structure of rare-earth doped SrMoO4 phosphors by X-ray absorption spectroscopy,
    XAFS2022, July 10-15, 2022, Sydney, Australia, Online.
    Abstract
    Poster

  12. I. Pudza, A. Anspoks, A. Kalinko, E. Welter, A. Kuzmin,
    Probing the interlayer coupling in two-dimensional layered 2H-MoS2 and 2H-WS2 by EXAFS and reverse Monte Carlo simulations,
    XAFS2022, July 10-15, 2022, Sydney, Australia, Online.
    Abstract
    Poster

  13. P. Kaspars, I. Pudza, A. Tokmakovs, A. Kalinko, A. Kuzmin,
    Development of X-ray sensitive hybrid organic-inorganic systems utilizing tungstate nanoparticles for radiation detection applications,
    19th International Young Scientist conference “Developments in Optics and Communications”, April 13-14, 2023, Riga, Latvia.
    Abstract
    Invited Talk




Seminars:
  1. Presentation at the meeting of the Division of Physical and Technical Sciences of the Latvian Academy of Science (25 May 2022).
    Presentation




Video presentations:

    LZP pasākums “Pieslēdzies zinātnei!”, 28.10.2021.