Mikroskopijas laboratorija

Laboratorijai ir izstrādātas un aktīvi pielietotas četras pētījumu metodes:

• elektronu mikroskopija (I),
• rentgenstaru un elektronu difrakcija (II),
• mikro-cietības un nano-iespieduma metodes (III),
• atomspēku mikroskopija (IV).

Aktīvie projekti:

Apvārsnis 2020

CAMART2 (2017-2024)

ERAF

Caurlaidības un efektivitātes uzlabošana lielā izmēra elektroluminiscentiem aizsargpaneļiem izmantojot dzidrinātus slāņus un perspektīvus materiālus (2022-2024)

Jaunas, uz optiskajām šķiedrām balstītas sistēmas izstrāde vīrusu proteīnu mobilai noteikšanai ar augstu jutību, izmantojot SERS tehnoloģiju (2022-2024)

Lauku atbalsta dienesta projekti

Tehnoloģiju izstrāde oglekļa koncentrācijas noteikšanai augsnē (2020-2022)

Realizētie projekti:

ERAF projekti (LIAA administrētie)

Integrēta spektrometru sistēma mēslošanas līdzekļu un herbicīdu lietošanas reāllaika optimizēšanai (2020)

Mini spektrometrs pārtikas analīzei (2018)

EUROfusion

"ODS steel with high creep strength", EUROfusion WPMAT - Advanced Steels Project (MAT-2.3.2-T005-D004) (2014-2020)

LZP granti

Metālu hidrīdu rentgena absorbcijas pētījumi ekstrēma spiediena apstākļos (2018-2020)

• Latvijas zinātnes nozīmīgākais sasniegums 2022. gadā lietišķajā zinātnē - Izstrādāta inovatīva amfotērā atsaistītā elektrolīze - vienkāršs koncepts, lai šķeltu ūdeni un ražotu H2 ar augstu efektivitāti lētā un drošā veidā (Dr.phys. Mārtiņš Vanags, Mg.sc.ing. Guntis Kuļikovskis, Mg.chem. Juris Kostjukovs, Mg.sc. Laimons Jēkabsons, LZA korespondētājloceklis Anatolijs Šarakovskis, Dr.phys. Krišjānis Šmits, Mg.phys. Līga Bikše, LZA akadēmiķis Andris Šutka)

Latvija

• Rīgas Tehniskā universitātes Materiālu un Virsmu Tehnoloģijas institūts (Prof. A.Šutka)
• Rīgas Tehniskā universitātes Medicīnas fizikas un inženierijas katedra (Dr.habil.phys.. J.Dehtjars))
• Latvijas Universitātes Ķīmiskās fizikas institūts
• Rīgas Stradiņu universitāte
• Ceram Optec
• GroGlass

Igaunija

• Tartu Physicums

Lietuva

• Kaunas University of Technology

Taivāna

• National Sun Yat-Sen University

2022

Karipbayev, Z.T., Kumarbekov, K., Manika, I., Dauletbekova, A., Kozlovskiy, A.L., Sugak, D., Ubizskii, S.B., Akilbekov, A., Suchikova, Y. and Popov, A.I. (2022), Optical, Structural, and Mechanical Properties of Gd3Ga5O12 Single Crystals Irradiated with 84Kr+ Ions. Phys. Status Solidi B, 259: 2100415. doi.org/10.1002/pssb.202100415 

Ansone-Bertina, L.; Ozols, V.; Arbidans, L.; Dobkevica, L.; Sarsuns, K.; Vanags, E.; Klavins, M. Metal–Organic Frameworks (MOFs) Containing Adsorbents for Carbon Capture. Energies 2022, 15, 3473. doi.org/10.3390/en15093473
A. Spustaka, D. Millers, E. Einbergs, V. Vitola, E. Vanags. Luminescence of ZnO:Ga ceramics under sub-threshold electron irradiation, Optical Materials, Volume 126, 2022, 112181, ISSN 0925-3467, https://doi.org/10.1016/j.optmat.2022.112181

Vanags, Edgars, Abolins, Arnis & Cabulis, Ugis. (2022). Lipase Catalyzed Self-epoxidation of Tall Oil Fatty Acids in Batch and Continuous Flow Conditions. Journal of Polymers and the Environment. 1-11. 10.1007/s10924-022-02739-0
L. Avotina et al., "Thermal behaviour of magnetron sputtered tungsten and tungsten-boride thin films," 2022 International Conference on Applied Electronics (AE), Pilsen, Czech Republic, 2022, pp. 1-4, doi: 10.1109/AE54730.2022.9920033
Vanags, Martin & Kulikovskis, Guntis & Kostjukovs, Juris & Jekabsons, Laimonis & Sarakovskis, Anatolijs & Smits, Krisjanis & Bikse, Liga & Šutka, Andris. (2022). Membrane-less amphoteric decoupled water electrolysis using WO 3 and Ni(OH) 2 auxiliary electrodes. Energy & Environmental Science. 15. 10.1039/D1EE03982B

Boris Polyakov, Edgars Butanovs, Andrejs Ogurcovs, Anatolijs Sarakovskis, Martins Zubkins, Liga Bikse, Jevgenijs Gabrusenoks, Sergei Vlassov, Alexei Kuzmin, and Juris Purans. Unraveling the Structure and Properties of Layered and Mixed ReO3–WO3 Thin Films Deposited by Reactive DC Magnetron Sputtering.  ACS Omega 2022 7 (2), 1827-1837, DOI:10.1021/acsomega.1c05085

Gints Kucinskis, Inara Nesterova, Anatolijs Sarakovskis, Liga Bikse, Julija Hodakovska, Gunars Bajars, Electrochemical performance of Na2FeP2O7/C cathode for sodium-ion batteries in electrolyte with fluoroethylene carbonate additive, Journal of Alloys and Compounds, Volume 895, Part 2, 2022, 162656, ISSN 0925-8388, https://doi.org/10.1016/j.jallcom.2021.162656

M. Jurjans, L. Bikse, E. Birks, Š. Svirskas, M. Antonova, M. Kundzins, and A. Sternberg , "Electromechanical properties in CaTiO3 modified Na0.5Bi0.5TiO3-BaTiO3 solid solutions above morphotropic phase boundary", AIP Advances 12, 035124 (2022) https://doi.org/10.1063/5.0072329

Dunce, M, Birks, E, Antonova, M, Bikse, L, Kundzins, K, Freimanis, O, et al. Composition and microstructure of Na0.5Bi0.5TiO3 ceramics with excess Bi. J Am Ceram Soc. 2022; 105: 3874– 3884. doi.org/10.1111/jace.18395
Marija Dunce, Eriks Birks, Liga Bikse, Reinis Ignatans, Armin Fuith, Heinz Kabelka, Edgars Nitiss, Maris Kundzins, and Andris Sternberg , "Novel approach in analyzing phase transitions in Na0.5Bi0.5TiO3—Comparison with 0.95Na0.5Bi0.5TiO3–0.05CaTiO3", Journal of Applied Physics 131, 224101 (2022) https://doi.org/10.1063/5.0089610

Zakis, K.; Olonkins, S.; Udalcovs, A.; Lukosevics, I.; Prigunovs, D.; Grube, J.; Bikse, L.; Supe, A.; Ozolins, O.; Spolitis, S.; Bobrovs, V. Cladding-Pumped Er/Yb-Co-Doped Fiber Amplifier for Multi-Channel Operation. Photonics 2022, 9, 457. https://doi.org/10.3390/photonics9070457

M. Zubkins, I. Aulika, E. Strods, V. Vibornijs, L. Bikse, A. Sarakovskis, G. Chikvaidze, J. Gabrusenoks, H. Arslan, J. Purans, Optical properties of oxygen-containing yttrium hydride thin films during and after the deposition, Vacuum, Volume 203, 2022, 111218, ISSN 0042-207X

M. Zubkins, A. Sarakovskis, E. Strods, L. Bikse, B. Polyakov, A. Kuzmin, V. Vibornijs, J. Purans, Tailoring of rhenium oxidation state in ReOx thin films during reactive HiPIMS deposition process and following annealing, Materials Chemistry and Physics, Volume 289, 2022, 126399, ISSN 0254-0584, https://doi.org/10.1016/j.matchemphys.2022.126399

Dimitrocenko, L.; Strikis, G.; Polyakov, B.; Bikse, L.; Oras, S.; Butanovs, E. The Effect of a Nucleation Layer on Morphology and Grain Size in MOCVD-Grown β-Ga2O3 Thin Films on C-Plane Sapphire. Materials 2022, 15, 8362. https://doi.org/10.3390/ma15238362

Kosimov, A; Yusibova, G.; Aruväli, J.: Paiste, P.; Käärik, M.; Leis, J.; Kikas, A.; Kisand, V.; Šmits, K.; Kongi, N. Liquid-assisted grinding/compression: a facile mechanosynthetic route for the production of hig-performing Co–N–C electrocatalyst materials. (2022) Green Chemistry, 24, 305. DOI: 10.1039/D1GC03433B

Linards Skuja, Madara Leimane, Ivita Bite, Donats Millers, Aleksejs Zolotarjovs, Virginija Vitola, Krisjanis Smits, Ultraviolet luminescence of polycyclic aromatic hydrocarbons in partially consolidated sol-gel silica glasses, Journal of Non-Crystalline Solids, Volume 577, 2022, 121325, ISSN 0022-3093, https://doi.org/10.1016/j.jnoncrysol.2021.121325.

Kunakova, G.; Kauranens, E.; Niherysh, K.; Bechelany, M.; Smits, K.; Mozolevskis, G.; Bauch, T.; Lombardi, F.; Erts, D. Magnetotransport Studies of Encapsulated Topological Insulator Bi2Se3 Nanoribbons. Nanomaterials 2022, 12, 768. doi.org/10.3390/nano12050768

Erts, D., Katkevics, J., Sjomkane, M., Andzane, J., Sarakovskis, A., Smits, K., Viksna, A., Rublova, Y., & Meija, R. (2022). EIS characterization of aging and humidity-related behavior of Bi2Se3 films of different morphologies. Nano-Structures and Nano-Objects, 30, [100847]. https://doi.org/10.1016/j.nanoso.2022.100847

Buks, K., Andzane, J., Bugovecka, L., Katkov, M. V., Smits, K., Starkova, O., Katkevics, J., Bērziņš, A., Brauna, L., Voikiva, V., Erts, D., Highly Efficient Flexible n-Type Thermoelectric Films Formed by Encapsulation of Bi2Se3-MWCNT Hybrid Networks in Polyvinyl Alcohol. Adv. Mater. Interfaces 2022, 9, 2200318. https://doi.org/10.1002/admi.202200318

Šutka, A., Lapčinskis, L., Verners, O., L. Ģērmane, , Smits, K., Pludons, A., Gaidukovs, S., Jerāne, I., Zubkins, M., Pudzs, K., Sherrell, P. C., Blums, J., Bio-Inspired Macromolecular Ordering of Elastomers for Enhanced Contact Electrification and Triboelectric Energy Harvesting. Adv. Mater. Technol. 2022, 7, 2200162. doi.org/10.1002/admt.202200162

Iesalnieks, M.; Eglītis, R.; Juhna, T.; Šmits, K.; Šutka, A. Photocatalytic Activity of TiO2 Coatings Obtained at Room Temperature on a Polymethyl Methacrylate Substrate. Int. J. Mol. Sci. 2022, 23, 12936. doi.org/10.3390/ijms232112936

Šutka, A.; Mežule, L.; Denisova, V.; Meier-Haack, J.; Kulkarni, A.; Bitina, S.; Smits, K.; Vihodceva, S. Straightforward Approach for Preparing Durable Antibacterial ZnO Nanoparticle Coatings on Flexible Substrates. Molecules 2022, 27, 7672. doi.org/10.3390/molecules27227672

Nefedova, A., Rausalu, K., Zusinaite, E. et al. Antiviral efficacy of cerium oxide nanoparticles. Sci Rep 12, 18746 (2022). doi.org/10.1038/s41598-022-23465-6
Svalbe, B., Zvejniece, B., Stelfa, G., Vilks, K., Vavers, E., Vela, J.M., Dambrova, M. and Zvejniece, L. Antidepressive-like Behavior-Related Metabolomic Signatures of Sigma-1 Receptor Knockout Mice. Biomedicines, 10(7), 2022., p.1572. (FWCI=1.03; IF=4.757; DOI: 10.3390/biomedicines10071572

Alexei Kuzmin, Milena Dile, Katrina Laganovska, Aleksejs Zolotarjovs, Microwave-assisted synthesis and characterization of undoped and manganese doped zinc sulfide nanoparticles, Materials Chemistry and Physics, Volume 290, 2022, 126583, ISSN 0254-0584, doi.org/10.1016/j.matchemphys.2022.126583

2021

Dunce, M., Birks, E., Antonova, M., Bikse, L., Dutkevica, S., Freimanis, O., Livins, M., Eglite, L., Smits, K., Sternberg, A. (2021). Influence of sintering temperature on microstructure of Na0. 5Bi0. 5TiO3 ceramics. Journal of Alloys and Compounds, 884, 160955. (SNIP=1.380; IF=5.316; DOI: 10.1016/j.jallcom.2021.160955)

Laganovska, K., Olsteins, D., Smits, K., Bite, I., & Bikse, L. (2021). Formation of translucent nanostructured zirconia ceramics. Journal of the European Ceramic Society. (SNIP=1.616; IF=5.302; DOI: 10.1016/j.jeurceramsoc.2021.06.005)

Šutka, A., Zubkins, M., Linarts, A., Lapčinskis, L., Ma̅lnieks, K., Verners, O., Sarakovskis, A., Grzibovskis, R., Gabrusenoks, J., Strods, E., Smits, K., Vibornijs, V., Bikse, L., Purans, J. (2021). Tribovoltaic Device Based on the W/WO3 Schottky Junction Operating through Hot Carrier Extraction. The Journal of Physical Chemistry C. (SNIP=0.962; IF=4.126; DOI: 10.1021/acs.jpcc.1c04312)

Vihodceva, S., Šutka, A., Sihtmäe, M., Rosenberg, M., Otsus, M., Kurvet, I., Smits, K., Bikse, L., Kahru A., Kasemets, K. (2021). Antibacterial Activity of Positively and Negatively Charged Hematite (α-Fe2O3) Nanoparticles to Escherichia coli, Staphylococcus aureus and Vibrio fischeri. Nanomaterials, 11(3), 652. (SNIP=1.129; IF=5.076; DOI: 10.3390/nano11030652)

Kucinskis, G., Nesterova, I., Sarakovskis, A., Bikse, L., Hodakovska, J., & Bajars, G. (2021). Electrochemical Performance of Na2FeP2O7/C Cathode for Sodium-Ion Batteries in Electrolyte with Fluoroethylene Carbonate Additive. Journal of Alloys and Compounds, 162656. (SNIP=1.380; IF=5.316; DOI: 10.1016/j.jallcom.2021.162656)

Bikse, L., Dunce, M., Birks, E., Kundzins, K., Freimanis, O., Livins, M., ... & Sternberg, A. (2021). Impact of Thermal Treatment on the Surface of Na0. 5Bi0. 5TiO3-Based Ceramics. Crystals, 11(10), 1266. (SNIP=0.886; IF=2.589; DOI: 10.3390/cryst11101266)

Ščajev, P., Durena, R., Onufrijevs, P., Miasojedovas, S., Malinauskas, T., Stanionyte, S., Zarkov, A., Zukuls, A., Bite, I., Smits, K. (2021). Morphological and optical property study of Li doped ZnO produced by microwave-assisted solvothermal synthesis. Materials science in semiconductor processing, 135, 106069. (SNIP=1.098; IF=3.927; DOI: 10.1016/j.mssp.2021.106069)

Skuja, L., Ollier, N., Kajihara, K., Bite, I., Leimane, M., Smits, K., & Silins, A. (2021). Optical Absorption of Excimer Laser‐Induced Dichlorine Monoxide in Silica Glass and Excitation of Singlet Oxygen Luminescence by Energy Transfer from Chlorine Molecules. physica status solidi (a), 2100009. (SNIP=0.695; IF=1.981; DOI: 10.1002/pssa.202100009)

Ratso, S., Walke, P. R., Mikli, V., Ločs, J., Šmits, K., Vītola, V., ... & Kruusenberg, I. (2021). CO 2 turned into a nitrogen doped carbon catalyst for fuel cells and metal–air battery applications. Green Chemistry. (SNIP=1.882; IF=10.182; DOI: 10.1039/d1gc00659b)

Ristić, I., Miletić, A., Vukić, N., Marinović-Cincović, M., Smits, K., Cakić, S., & Pilić, B. (2021). Characterization of electrospun poly (lactide) composites containing multiwalled carbon nanotubes. Journal of Thermoplastic Composite Materials, 34(5), 695-706. (SNIP=0.870; IF=3.330; DOI: 10.1177/0892705719857780)

Lapčinskis, L., Linarts, A., Mālnieks, K., Kim, H., Rubenis, K., Pudzs, K., Smits, K., Kovaļovs, A., Kalniņš, K., Tamm, A., Jeong, C. K., Šutka, A. (2021). Triboelectrification of nanocomposites using identical polymer matrixes with different concentrations of nanoparticle fillers. Journal of Materials Chemistry A, 9(14), 8984-8990. (SNIP=1.668; IF=12.732; DOI: 10.1039/d0ta12441a)

Šutka, A., Eglitis, R., Kuzma, A., Smits, K., Zukuls, A., Prades, J. D., & Fàbrega, C. (2021). Photodoping-Inspired Room-Temperature Gas Sensing by Anatase TiO2 Quantum Dots. ACS Applied Nano Materials, 4(3), 2522-2527. (SNIP=0.914; IF=5.097; DOI: 10.1021/acsanm.0c03089)

Krieke, G., Antuzevics, A., Smits, K., & Millers, D. (2021). Enhancement of persistent luminescence in Ca2SnO4: Sm3+. Optical Materials, 113, 110842. (SNIP=0.955; IF=3.08; DOI: 10.1016/j.optmat.2021.110842)
Spustaka, A., Senko, M., Millers, D., Bite, I., Smits, K., & Vitola, V. (2021). Gallium Concentration Optimisation of Gallium Doped Zinc Oxide for Improvement of Optical Properties. Latvian Journal of Physics and Technical Sciences, 58(1), 33-43. (SNIP=0.522; IF=0.949; DOI: 10.2478/lpts-2021-0004)

Butanovs, E., Kuzmin, A., Piskunov, S., Smits, K., Kalinko, A., & Polyakov, B. (2021). Synthesis and characterization of GaN/ReS2, ZnS/ReS2 and ZnO/ReS2 core/shell nanowire heterostructures. Applied Surface Science, 536, 147841. (SNIP=1.382; IF=6.707; DOI: 10.1016/j.apsusc.2020.147841)

Vanags, M., Mežule, L., Spule, A., Kostjukovs, J., Šmits, K., Tamm, A., ... & Šutka, A. (2021). Rapid Catalytic Water Disinfection from Earth Abundant Ca2Fe2O5 Brownmillerite. Advanced Sustainable Systems, 2100130. (SNIP=0.752; IF=6.271; DOI: 10.1002/adsu.202100130)

Vitola, V., Lahti, V., Bite, I., Spustaka, A., Millers, D., Lastusaari, M., Petit, L., Smits, K. (2021). Low temperature afterglow from SrAl2O4: Eu, Dy, B containing glass. Scripta Materialia, 190, 86-90. (SNIP=1.814; IF=5.611; DOI: 10.1016/j.scriptamat.2020.08.023)

Muktepavela, F., Zolotarjovs, A., Zabels, R., Kundzins, K., Gorokhova, E., & Tamanis, E. (2021). Comparative Study on Micromechanical Properties of ZnO: Ga and ZnO: In Luminiscent Ceramics. Latvian Journal of Physics and Technical Sciences, 58(1), 23-32. (SNIP=0.522; IF=0.949; DOI: 10.2478/lpts-2021-0003)

Rodnyi, P., Venevtsev, I., Gorokhova, E., Eron'ko, S., Chizhov, A., & Muktepavela, F. (2021). Ultrafast luminescence of Ga-and In-doped ZnO ceramics. Optical Materials: X, 100106. (SNIP=1.458; IF=3.08; DOI: 10.1016/j.omx.2021.100106)

2020

Buks, K., Andzane, J., Smits, K., Zicans, J., Bitenieks, J., Zarins, A., & Erts, D. (2020). Growth mechanisms and related thermoelectric properties of innovative hybrid networks fabricated by direct deposition of Bi2Se3 and Sb2Te3 on multiwalled carbon nanotubes. Materials Today Energy, 18, 100526.

Vitola, V., Bite, I., Millers, D., Zolotarjovs, A., Laganovska, K., Smits, K., & Spustaka, A. (2020). The boron effect on low temperature luminescence of SrAl2O4: Eu, Dy. Ceramics International, 46(16), 26377-26381.

Dunce, M., Birks, E., Antonova, M., Ignatans, R., Nitiss, E., Kundzinsh, M., ... & Sternberg, A. (2020). Photoluminescence in Er-doped 0.4 Na1/2Bi1/2TiO3-(0.6-x) SrTiO3-x PbTiO3 solid solutions. Ferroelectrics, 567(1), 150-159

Karitans, V., Laganovska, K., & Kundzins, K. (2020). Phase retrieval of a Kolmogorov phase screen from very sparse data using four binary masks. Applied Optics, 59(27), 8362-8369.

Šutka, A., Šutka, A., Vanags, M., Spule, A., Eglītis, R., Vihodceva, S., ... & Mežule, L. (2020). Identifying Iron-Bearing Nanoparticle Precursor for Thermal Transformation into the Highly Active Hematite Photo-Fenton Catalyst. Catalysts, 10(7), 778.

Skuja, L., Smits, K., Trukhin, A., Gahbauer, F., Ferber, R., Auzinsh, M., ... & Alkauskas, A. (2020). Dynamics of Singlet Oxygen Molecule Trapped in Silica Glass Studied by Luminescence Polarization Anisotropy and Density Functional Theory. The Journal of Physical Chemistry C, 124(13), 7244-7253.

Laganovska, K., Zolotarjovs, A., Vázquez, M., Mc Donnell, K., Liepins, J., Ben-Yoav, H., ... & Smits, K. (2020). Portable low-cost open-source wireless spectrophotometer for fast and reliable measurements. HardwareX, 7, e00108.

Zukuls, A., Eglītis, R., Käämbre, T., Ignatans, R., Šmits, K., Rubenis, K., ... & Šutka, A. (2020). Permanent photodoping of plasmonic gallium-ZnO nanocrystals. Nanoscale, 12(12), 6624-6629.

Reinfelde, M., Teteris, J., & Grants, R. (2020). Spectral dependence of photoinduced formation of surface relief gratings in amorphous chalcogenides. Chalcogenide Letters, 17(1), 19-23.

Krukovskyi, R., Krukovskyi, S., Smits, K., Semkiv, I., Ilchuk, H., Kuntyi, O., & Saldan, I. (2020). Dependence of the properties of GaAs (111) A and Ga 1− X AI X As (111) A epitaxial layers on the conditions of their growth by organometallic vapor phase epitaxy. Functional Materials, 27(3), 482-487.