Given the relatively high cost of the equipment and its capabilities, priority is given to high-quality precision measurements (24 h on average), whose processing makes it possible to solve or fully refine the crystal structure of a substance, to estimate short-range order parameters, to study microstructural effects in the samples, etc. The links below present some examples of studies performed with the STOE STADI P diffractometer.
Selected results
Presentation of the results of the Laboratory’s cooperation with researchers of the natural-science faculties of the University and other academic and university institutions of Ukraine, limited to articles in journals indexed in Scopus and/or Web of Science:
Demchenko P. X-ray powder diffractometry for solving problems of solid-state physics and chemistry // XIV Scientific Conference “Lviv Chemical Readings – 2013”: Collection of Scientific Papers, Lviv, 26–29 May 2013. – Lviv: Ivan Franko National University of Lviv Publishing Centre, 2013. – P. У42.
III School of Young Scientists “Diffraction Methods: from Ideal to Real Structure”
Materials of the practical class “X-ray powder diffraction method. Phase analysis”.
26–27 September 2013, Lviv.
VIII School-Symposium of Young Scientists
Materials of the lecture and practical class “Microstructural effects in materials”.
2–3 December 2021, Lviv.
Crystal structure determination
Crystal structure solution and refinement, qualitative and quantitative phase analysis
- Nychyporuk, G.; Dymytryadi, D.; Pavlyuk, V.; Demchenko, P.; Kalychak, Y. New RE11Co4In9 (RE = Pr, Nd, Sm, Tm, Lu) Nd11Pd4In9-type compounds. Electronic structure of Pr11Co4In9. Z. Kristallogr. – Cryst. Mater. 2026, 241 (7–8), 215–222. (Q2; SJR 2025). https://doi.org/10.1515/zkri-2026-0014
- Moroz, M.; Demchenko, P.; Tesfaye, F.; Prokhorenko, M.; Kordan, V.; Prokhorenko, S.; Reshetnyak, O.; Gladyshevskii, R. Innovative Electrochemical Synthesis, Structural, and Thermodynamic Characterization of the Ag2FeGeS4 Compound in the Ag–Fe–Ge–S System. JOM 2026. (Q2; SJR 2025). https://doi.org/10.1007/s11837-026-08510-3
- Pukas, S.; Kravets, K.; Demchenko, P.; Semuso, N.; Gladyshevskii, R. New quaternary R2CoAl4Si2 compounds. Solid State Sci. 2024, 158, 107749. (Q2). https://doi.org/10.1016/j.solidstatesciences.2024.107749
- Zaremba, O.; Teplinska, M. S.; Demchenko, P.; Kordan, V.; Gladyshevskii, R. More about the BaO(BaCO3)–Lu2O3–CuO system. Solid State Sci. 2024, 157, 107722. (Q2). https://doi.org/10.1016/j.solidstatesciences.2024.107722
- Moroz, M.; Tesfaye, F.; Demchenko, P.; Kordan, V.; Prokhorenko, M.; Mysina, O.; Reshetnyak, O.; Gladyshevskii, R. Synthesis, Thermodynamic Properties, and Structural Characteristics of Multicomponent Compounds in the Ag–Ni–Sn–S System. JOM 2023, 75 (6), 2016–2025. (Q2). https://doi.org/10.1007/s11837-023-05784-9
- Romaka, V. V.; Romaka, L.; Demchenko, P.; Stadnyk, Yu. On the constitution and structural characterization of the ternary system Sm–Ni–Sn. J. Solid State Chem. 2022, 312, 123213. (Q2). https://doi.org/10.1016/j.jssc.2022.123213
- Subbotin, V.; Demchenko, P. Yu.; Yanko, O.; Kharkova, L.; Gladyshevskii, R. E.; Volkov, S. Synthesis, Structure and Some Catalytic Properties of the New Trinuclear Rhenium Cluster Compound Re3Se3S4Br13. Solid State Phenom. 2017, 257, 227–230. https://doi.org/10.4028/www.scientific.net/ssp.257.227
- Demchenko, P.; Khyzhun, O. Y.; Fochuk, P. M.; Levkovets, S. I.; Myronchuk, G. L.; Parasyuk, O. V. Single crystal growth, structure and properties of TlHgBr3. Opt. Mater. 2015, 49, 94–99. (Q2). https://doi.org/10.1016/j.optmat.2015.08.026
- Volkov, S. V.; Subbotin, V. V.; Demchenko, P. Yu.; Gladyshevskii, R. E.; Yanko, O. G.; Kharkova, L. B. On the preparation, structure and bonding of ReSCl3. Chem. Met. Alloys 2015, 8 (1/2), 43–54. https://doi.org/10.30970/cma8.0306
- Konyk, M.; Romaka, L.; Demchenko, P.; Romaka, V. V.; Stadnyk, Yu.; Horyn, A. The V–Cu–Sb ternary system at 773 K: Crystal, band structure, and physical properties. J. Alloys Compd. 2014, 589, 200–206. (Q1). https://doi.org/10.1016/j.jallcom.2013.11.150
- Сенчук, О.; Демченко, Г.; Демченко, П.; Гладишевський, Р. YNi4Si – нова похідна структурного типу CaCu5. Visn. Lviv Univ., Ser. Chem. 2013, 54 (1), 77–83.
- Demchenko, P.; Gektin, A.; Krasnikov, A.; Pashuk, I.; Shalapska, T.; Stryganyuk, G.; Voloshinovskii, A.; Zazubovich, S. Energy migration and Gd3+↔Ce3+ transfer in Ce3+-doped GdP3O9 metaphosphate. J. Phys. D: Appl. Phys. 2013, 46 (23), 235103–1. (Q1). https://doi.org/10.1088/0022-3727/46/23/235103
- Баранець, С. О.; Демченко, П. Ю.; Янко, О. Г.; Харькова, Л. Б.; Гладишевський, Р. Є.; Ніколенко, А. С.; Волков, С. В. Синтез та будова селеноброміду рутенію Ru2Se6Br12. Ukr. Chem. J. 2013, 79 (3), 7–9.
- Shalapska, T.; Stryganyuk, G.; Gektin, A.; Kotlov, A.; Demchenko, P.; Voloshinovskii, A. Luminescence properties of Ce3+-doped NaPrP4O12 polyphosphate. J. Phys.: Condens. Matter 2013, 25 (10), 105403–1. (Q1). https://doi.org/10.1088/0953-8984/25/10/105403
- Volkov, S. V.; Gladyshevskii, R. E.; Mironov, Yu. V.; Demchenko, P. Yu.; Yanko, O. G.; Smolentsev, A. I.; Fokina, Z. A.; Khar’kova, L. B.; Baranets, S. A. Osmium thioselenochloride Os2S6Se2Cl8: Synthesis, cluster isolation, and structure. Koord. Khim. 2012, 38 (3), 179–184.
- Romaka, L.; Stadnyk, Yu.; Romaka, V. V.; Demchenko, P.; Stadnyshyn, M.; Konyk, M. Peculiarities of component interaction in {Gd, Er}–V–Sn Ternary systems at 870 K and crystal structure of RV6Sn6 stannides. J. Alloys Compd. 2011, 509 (36), 8862–8869. (Q1). https://doi.org/10.1016/j.jallcom.2011.06.095
- Volkov, S. V.; Demchenko, P. Yu.; Akselrud, L. G.; Gladyshevskii, R. E.; Pekhn’o, V. I.; Fokina, Z. A.; Yanko, O. G.; Khar’kova, L. B. Crystal structure of osmium selenobromide OsSe2Br12. Zh. Neorg. Khim. 2011, 56 (3), 428–432.
- Volkov, S. V.; Gladyshevskii, R. E.; Demchenko, P. Yu.; Yanko, O. G.; Akselrud, L. G.; Kharkova, L. B.; Fokina, Z. A. Synthesis and crystal structure of Os4S11SeCl8. Chem. Met. Alloys 2010, 3 (3/4), 191–196. https://doi.org/10.30970/cma3.0169
- Moroz, M. V.; Demchenko, P. Yu.; Akselrud, L. G.; Mykolaychuk, O. G.; Gladyshevskii, R. E. Phase relations along the Ag8GeS6–[(AgBr)4·GeS2] cross-section. Crystal structure and electric conductivity of Ag6GeS4Br2 in bulk. Chem. Met. Alloys 2010, 3 (3/4), 161–168. https://doi.org/10.30970/cma3.0153
- Shalapska, T.; Stryganyuk, G.; Gektin, A.; Demchenko, P.; Voloshinovskii, A.; Dorenbos, P. Crystal structure and luminescence properties of LiYP4O12:Ce3+ phosphor. J. Phys.: Condens. Matter 2010, 22 (48), 485503–1. (Q1). https://doi.org/10.1088/0953-8984/22/48/485503
- Romaka, L.; Romaka, V. V.; Demchenko, P.; Serkiz, R. Peculiarity of component interaction in Er–Fe–Sn ternary system at 670 K and 770 K. J. Alloys Compd. 2010, 507 (1), 67–71. (Q1). https://doi.org/10.1016/j.jallcom.2010.07.137
- Mikolaichuk, A. G.; Moroz, N. V.; Demchenko, P. Yu.; Akselrud, L. G.; Gladyshevskii, R. E. Phase Relations in the Ag8SnS6–Ag2SnS3–AgBr System and Crystal Structure of Ag6SnS4Br2. Inorg. Mater. 2010, 46 (6), 590–597. (Q3). https://doi.org/10.1134/s0020168510060051
- Demchenko, P. Yu.; Gladyshevskii, R. E.; Volkov, S. V.; Yanko, O. G.; Kharkova, L. B.; Fokina, Z. A.; Fokin, A. A. The first nonaselenium ring. Chem. Commun. 2010, 46 (25), 4520. (Q1). https://doi.org/10.1039/c0cc00192a
Microstructural analysis
RDF, FSDP, sizes of coherent-scattering domains, lattice strains, preferred orientation of grains, composite structure of materials
- Velichenko, A.; Knysh, V.; Shmychkova, O.; Luk’yanenko, T.; Pukas, S.; Demchenko, P.; Kordan, V.; Gladyshevskii, R. Comprehensive study on physicochemical properties of materials based on titanium suboxides. Phys. Chem. Solid State 2024, 25 (3), 617–625. (Q3). https://doi.org/10.15330/pcss.25.3.617-625
- Shpotyuk, O.; Lukáčová Bujňáková, Z.; Baláž, P.; Shpotyuk, Y.; Demchenko, P.; Balitska, V. Impact of grinding media on high-energy ball milling-driven amorphization in multiparticulate As4S4/ZnS/Fe3O4 nanocomposites. Adv. Powder Technol. 2020, 31 (8), 3610–3617. (Q1). https://doi.org/10.1016/j.apt.2020.07.008
- Shpotyuk, O.; Demchenko, P.; Shpotyuk, Y.; Kozyukhin, S.; Kovalskiy, A.; Kozdras, A.; Lukáčová Bujňáková, Z.; Baláž, P. Milling-driven nanonization of AsxS100–x alloys from second glass-forming region: The case of higher-crystalline arsenicals (51 < x < 56). J. Non-Cryst. Solids 2020, 539, 120086. (Q1). https://doi.org/10.1016/j.jnoncrysol.2020.120086
- Velichenko, A.; Luk’yanenko, T.; Nikolenko, N.; Shmychkova, O.; Demchenko, P.; Gladyshevskii, R. Composite Electrodes PbO2 –Nafion®. J. Electrochem. Soc. 2020, 167 (6), 063501. (Q1). https://doi.org/10.1149/1945-7111/ab805f
- Shpotyuk, Y.; Demchenko, P.; Bujňáková, Z.; Baláž, P.; Boussard‐Pledel, C.; Bureau, B.; Shpotyuk, O. Effect of high‐energy mechanical milling on the medium‐range ordering in glassy As–Se. J. Am. Ceram. Soc. 2020, 103 (3), 1631–1646. (Q1). https://doi.org/10.1111/jace.16877
- Shpotyuk, O.; Demchenko, P.; Shpotyuk, Y.; Bujňáková, Z.; Baláž, P. Medium-range structural changes in glassy As2S3 driven by high-energy mechanical milling. J. Non-Cryst. Solids 2019, 505, 347–353. (Q1). https://doi.org/10.1016/j.jnoncrysol.2018.11.010
- Shpotyuk, O.; Baláž, P.; Bujňáková, Z.; Ingram, A.; Demchenko, P.; Shpotyuk, Y. Mechanochemically driven amorphization of nanostructurized arsenicals, the case of β-As4S4. J. Mater. Sci. 2018, 53 (19), 13464–13476. (Q1). https://doi.org/10.1007/s10853-018-2404-3
- Shpotyuk, O.; Bujňáková, Z.; Sayagués, M. J.; Baláž, P.; Ingram, A.; Shpotyuk, Ya.; Demchenko, P. Microstructure characterization of multifunctional As4S4/Fe3O4 nanocomposites prepared by high-energy mechanical milling. Mater. Charact. 2017, 132, 303–311. (Q1). https://doi.org/10.1016/j.matchar.2017.08.028
- Shmychkova, O.; Luk’yanenko, T.; Piletska, A.; Velichenko, A.; Gladyshevskii, R.; Demchenko, P.; Amadelli, R. Electrocrystallization of lead dioxide: Influence of early stages of nucleation on phase composition. J. Electroanal. Chem. 2015, 746, 57–61. (Q2). https://doi.org/10.1016/j.jelechem.2015.03.031
- Shpotyuk, O.; Kozyukhin, S.; Shpotyuk, Ya.; Demchenko, P.; Mitsa, V.; Veres, M. Coordination disordering in near-stoichiometric arsenic sulfide glass. J. Non-Cryst. Solids 2014, 402, 236–243. (Q1). https://doi.org/10.1016/j.jnoncrysol.2014.06.013
- Aksimentyeva, O. I.; Savchyn, V. P.; Dyakonov, V. P.; Piechota, S.; Horbenko, Yu. Yu.; Opainych, I. Ye.; Demchenko, P. Yu.; Popov, A.; Szymczak, H. Modification of Polymer–Magnetic Nanoparticles by Luminescent and Conducting Substances. Mol. Cryst. Liq. Cryst. 2014, 590 (1), 35–42. (Q3). https://doi.org/10.1080/15421406.2013.873646
- Shpotyuk, M.; Shpotyuk, O.; Golovchak, R.; Demchenko, P. FSDP-related correlations in γ-irradiated chalcogenide semiconductor glasses: The case of glassy arsenic trisulphide g-As2S3 revised. J. Phys. Chem. Solids 2013, 74 (12), 1721–1725. (Q2). https://doi.org/10.1016/j.jpcs.2013.06.016
- Kasian, O. I.; Luk’yanenko, T. V.; Demchenko, P.; Gladyshevskii, R. E.; Amadelli, R.; Velichenko, A. B. Electrochemical properties of thermally treated platinized Ebonex® with low content of Pt. Electrochim. Acta 2013, 109, 630–637. (Q1). https://doi.org/10.1016/j.electacta.2013.07.162
- Rakitskaya, T. L.; Kiose, T. A.; Zryutina, A. M.; Gladyshevskii, R. E.; Truba, A. S.; Vasylechko, V. O.; Demchenko, P. Yu.; Gryschouk, G. V.; Volkova, V. Ya. Solid-State Catalysts Based on Bentonites and Pd(II) Cu(II) Complexes for Low-Temperature Carbon Monoxide Oxidation. Solid State Phenom. 2013, 200, 299–304. (Q3). https://doi.org/10.4028/www.scientific.net/ssp.200.299
- Kulyk, B.; Figà, V.; Kapustianyk, V.; Panasyuk, M.; Serkiz, R.; Demchenko, P. Structural properties and temperature behaviour of optical absorption edge in polycrystalline ZnO:X (Cu,Ag) films. Acta Phys. Pol. A 2013, 123 (1), 92–97. (Q3). https://doi.org/10.12693/aphyspola.123.92
- Aksimentyeva, O. I.; Demchenko, P. Y.; Savchyn, V. P.; Balitskii, O. A. The chemical exfoliation phenomena in layered GaSe–polyaniline composite. Nanoscale Res. Lett. 2013, 8 (1), 29. (Q1). https://doi.org/10.1186/1556-276x-8-29
- Balitskii, O. A.; Demchenko, P. Yu.; Mijowska (Borowiak-Palen), E.; Cendrowski, K. Synthesis and characterization of luminescent aluminium selenide nanocrystals. Mater. Res. Bull. 2013, 48 (2), 916–919. (Q2). https://doi.org/10.1016/j.materresbull.2012.11.059
- Opainych, I. E.; Aksiment’eva, O. I.; D’yakonov, V. P.; Piechota, S.; Ulański, J.; Demchenko, P. Yu.; Ukrainets’, A. M. Structure and thermodeformation properties of polymer–magnetite hybrid composites. Mater. Sci. 2012, 48 (1), 95–100. (Q3). https://doi.org/10.1007/s11003-012-9477-y
- Shevchuk, V. N.; Usatenko, Yu. N.; Demchenko, P. Yu.; Antonyak, O. T.; Serkiz, R. Ya. Obtaining and observation of micro- and nano-size V2O5 structures. Funct. Mater. 2011, 18 (3), 309–314. (Q4).
- Aksimentyeva, O. I.; Demchenko, P. Yu.; Savchyn, V. P.; Balitskii, O. A. Structure, electrical and luminescent properties of the polyaniline–GaSe hybrid nanocomposites. Mol. Cryst. Liq. Cryst. 2011, 536 (1), 65–71. (Q2). https://doi.org/10.1080/15421406.2011.538345
- Trachevsky, V. V.; Steblenko, L. P.; Demchenko, P. Y.; Koplak, O. V.; Kuryliuk, A. M.; Melnik, A. K. Changes in the state of paramagnetic centers and lattice parameter of micro-structured Si under the influence of weak magnetic field. Semicond. Phys., Quantum Electron. Optoelectron. 2010, 13 (1), 87–90. https://doi.org/10.15407/spqeo13.01.087