Mobirise

Dr. Valerii Y. Sirenko
Junior research associate at
Taras Shevchenko National University of Kyiv


2024 - present time Junior research associate at Taras Shevchenko National University of Kyiv
2022 – 2024 PhD student of Taras Shevchenko National University of Kyiv (supervisor Dr. Il’ya A. Gural’skiy). PhD thesis "Chiral hybrid perovskites based on amino acids as functional organic–inorganic materials"
2015 – 2022 Master. Taras Shevchenko National University of Kyiv, Faculty of Chemistry. Master
diploma: “Switching materials with spin transition based on Fe(II) triazole
complexes” (Supervisor: Dr. Il’ya A. Gural’skiy)

SCOPUS: 57211662396
ORCID: 0000-0002-9002-4756
WoS: AAU-6544-2021

RESEARCH INTERESTS:
I began my research activity in the third year of my Bachelor’s studies in the research group of
Il’ya A. Gural’skiy, working on the direct synthesis of Fe(II) spin-crossover complexes. With the start  of my Master’s degree studies, I moved to the main research direction of Il’ya A. Gural’skiy group – hybrid organic–inorganic perovskites. This research area forms the basis of the project “Chiral Framework Materials for Advanced Optoelectronic Applications”
At present, my scientific interests centre on metal-halide hybrid perovskites – materials that offer  broad opportunities for modern optoelectronics and photovoltaics. I am engaged in the synthesis, crystal structure analysis, and investigation of the semiconducting, hysicochemical, and optical properties of these materials. Based on the experimental data obtained, I study the influence of composition and structure on their properties and identify key characteristics that make these compounds promising candidates for use as active layers in state-of-the-art optoelectronic devices. 
The main direction of my work is the preparation and comprehensive study of low-dimensional
chiral hybrid perovskites based on amino acid cations – unique compounds that lack mirror
symmetry. This structural feature means that an object cannot be superimposed on its mirror image  by any combination of rotations and parallel translations in three-dimensional space. The absence of mirror symmetry gives rise in these materials to nonlinear optical responses, spontaneous polarization, and a variety of chiroptical effects, including circular dichroism. 
Another important area of my research is the development of new functional materials based on hybrid perovskites in the form of thin-film multilayer structures. The use of such architectures makes it possible to finely tune their properties and combine several functions within a single material. 
Among the multilayer systems I have been working on, I have achieved the greatest progress in
creating optoelectronic devices – hybrid perovskite-based photodetectors that operate efficiently in  both the visible and near-infrared spectral ranges.

IMPROVEMENT OF SCIENTIFIC QUALIFICATION
International Research Internships
2025 Institute of Macromolecular Chemistry "Petru Poni", Iasi, Romania
Summer Schools
2025 International Online Internship Program “European Chemistry School for Ukrainians II”,
Organizers: Stefan Wuttke and Joanna Gościańska
2023 International Online Internship Program “European Chemistry School for Ukrainians”,
Basque Center for Materials, Applications & Nanostructures (Spain) and Adam Mickiewicz
University, Poznań (Poland).
2023 Ukrainian-British Summer School for postgraduate students and young scientists "Academic writing, scholarly publishing, and science communication", Taras Shevchenko National University of Kyiv