Mūsu mērķis ir nostiprināties par vadošo mikroskopijas centru Baltijā. Ar daudzveidīgu speciālistu un studentu komandu no dažādām zinātnes jomām mēs veicam visprogresīvākos pētījumus par plašu materiālu klāstu. Mūsu laboratorija ir aprīkota ar vismodernākajiem mikroskopiem, pievienotām smalkām analīzes tehnikām un uz mikroskopiju balstītiem prototipu veidošanas rīkiem. Turklāt mēs veicinām ciešu sadarbību ar citām laboratorijām, izmantojot apvienotās zināšanas un mērījumu metodes, kas pieejamas mūsu institūtā. Mēs esam apņēmušies pastāvīgi atjaunināt aprīkojumu un mērīšanas metodes, ļaujot mums izpētīt materiālu struktūras, sākot no makro līdz nano mērogam.
Lai gan mēs piedāvājam plašu mērījumu klāstu ārējām pusēm, mums ir arī savi pētniecības virzieni, kuros veicam zinātniskos pētījumus. Degsme virza progresu, tāpēc mēs kā mikroskopijas laboratorija fokusējamies uz to.
| Grāds | Vārds Uzvārds | Amats | Kontaktinformācija |
|---|---|---|---|
| Dr.phys. | Krišjānis Šmits | Laboratorijas vadītājs un Vadošais pētnieks | Krisjanis.Smits 67187478 |
| Ph.D. | Reinis Ignatāns | Vadošais pētnieks | Reinis.Ignatans |
| Dr.phys. | Ilze Manika | Vadošā pētniece | Ilze.Manika 67261132 |
| Ph.D. | Kārlis Vilks | Pētnieks | Karlis.Vilks |
| Mg. | Līga Ignatāne | Pētniece | Liga.Ignatane |
| Mg. | Edgars Vanags | Pētnieks | Edgars.Vanags |
| Annija Melece | Laborante | Annija.Melece | |
| Kaspars Jaundzems | Laborants | Kaspars.Jaundzems |
1. Mikro un nano izmēra protipēšana ar fokusēto jonu staru skenējošā elektronu mikroskopā (FIB-SEM)
 | Izmantotais bitkartes fails (kreisajā pusē), kur melnās krāsas daļas definē FIB eksponēšanās vietas, un tā pāreja uz reālu SEM attēlu pēc FIB ekspozīcijas uz virsmas. Bitkartes faili ir stingri noteikti, tādējādi ar FIB var izveidot labi kontrolētas mikro līdz nano mēroga struktūras. |
2. Mērogojamu elektroluminiscējošu (EL) plānu kārtiņu aizsargpaneļu caurspīdīguma un efektivitātes uzlabošana, izmantojot pretatstarojošus slāņus un modernus materiālus
 | Šķērsgriezuma pētīšana, pārbaudot EL plāno kārtiņu materiālus. Viens no pētījumiem ir vērsts uz jaunu materiālu izpēti un ierīču arhitektūras optimizēšanu. Šajā nolūkā elektronu mikroskopiem ir izšķiroša nozīme, ļaujot mums izpētīt un izprast šo materiālu īpašības, kā arī uzlabot ierīču vispārējo veiktspēju. |
3. Caurspīdīgās un 3D printētās keramikas
Graudu un poru veidošanās nanostrukturētā keramikā
Elektronu un jonu mikroskopi ir nenovērtējami instrumenti dažādu keramikas pētījumu aspektu izpētei, kas veido nozīmīgu daļu no mūsu pētniecības fokusa. Mūsu pētījumi ietver keramikas veidošanos, nanostrukturētu keramikas saķepināšanu, 3D drukātu keramiku, caurspīdīgu keramiku un keramikas pārklājumus. Izmantojot elektronu mikroskopiju, īpaši SEM un TEM, mēs panākam augstas izšķirtspējas keramikas attēlveidošanu nanomērogā. Tas ļauj mums iegūt vērtīgu informāciju par to mikrostruktūru, graudu robežām un defektiem. Optimizējot saķepināšanas apstākļus un uzlabojot izpratni par keramikas veidošanas procesiem, mēs cenšamies virzīt uz priekšu šo jomu. Mūsu keramikas pētījumos mūsu SEM-FIB mikroskopiem ir galvenā loma paraugu sagatavošanā, kas ietver kodināšanu, lameļu sagatavošanu un 3D sagriešanu un apskati, kas ļauj veikt turpmāku analīzi. Apvienojot šīs mikroskopijas metodes ar mūsu pieredzi keramikas izejvielu sintēzes un saķepināšanas pieejās, mēs gūstam vērtīgu ieskatu keramikas īpašībās.
4. Jaunas paaudzes pjezoelektrisku materiālu pētījumi
Mūsu mērķis ir noskaidrot mehānismus, kas ir atbildīgi par lielu inducēto pjezoelektrisko efektu oksīdos ar nolūku uzlabot materiālu elektromehāniskās īpašības un izveidot demonstrācijas pjezoelektrisko plānslāņu ierīci, kuras pamatā ir inducētais pjezoelektriskais efekts ar lielu telpisko un temporālo dinamisko diapazonu.
5. Esam atvērti jaunām, interesantām idejām, kur mikroskopijas metodes sniedz būtisku ieguldījumu pētniecībā. Piemēram, materiālu 3D rekonstrukcija, EBSD, īpaša dizaina mikro/nano struktūru veidošana ar FIB.
Aktīvie projekti:
LZP granti
Jaunas paaudzes pjezoelektriskie materiāli aktīvās vibrācijas kontroles sistēmām (2024-2026)
Realizētie projekti:
ERAF projekti (LIAA administrētie)
Mini spektrometrs pārtikas analīzei (2018)
EUROfusion
LZP granti
Metālu hidrīdu rentgena absorbcijas pētījumi ekstrēma spiediena apstākļos (2018-2020)
Apvārsnis 2020
ERAF
Lauku atbalsta dienesta projekti
Tehnoloģiju izstrāde oglekļa koncentrācijas noteikšanai augsnē (2020-2022)
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)
 | Thermo Scientific SEM Helios UX 5 EB current: 0.8 pA - 100 nA Equipped with: FIB, GIS, Nanomanipulator, EDX, EBSD, STEM detector |
 | SEM Tescan Lyra EB accelerating voltage: 2 kV - 30 kV Equipped with: FIB, GIS, EDX, Nanomanipulator Kleindak |
 | TEM Fei Tecnai EB accelerating voltage: 20 kV - 200 kV Equipped with: EDS, SAED analysis |
 | XRD X’Pert PRO MPD Cu K⍺ X-ray tube Equipped with Anton Paar heating chamber (−100 °C −450 °C ) |
 | AFM Contact mode, tapping mode, force modulation mode; |
 | Nanoindenter G200 - Load range: MicroNewtons to Newtons |
Microhardness tester PMT-3 Indenter - square base pyramid shaped diamond | |
 | Sample preparation system Fume cupboard |
 | Optical microscope Nikon Eclipse L150 Max. sample size 150 mm x 150 mm x 78 mm |
 | Imaging sputter coater Quorum Q150R S Target: Gold or Carbon |
Softwares Match! - phase analysis using powder diffraction |
Latvija
- Rīgas Tehniskās universitātes Materiālu un Virsmu Tehnoloģijas institūts (Prof. A. Šutka)
- Rīgas Tehniskās universitātes Medicīnas fizikas un inženierijas katedra (Dr. habil. phys. J. Dehtjars)
- Rīgas Tehniskās universitātes Biomateriālu un bioinženierijas institūts
- Latvijas Universitātes Ķīmiskās fizikas institūts
- Latvijas Universitātes Mikrobioloģijas un biotehnoloģijas institūts
- Rīgas Stradiņu universitāte
- Ceram Optec
- GroGlass
- LightGuide
Igaunija
- Tartu Physicums
Lietuva
- Kaunas University of Technology
Taivāna
- National Sun Yat-Sen University
2024
Tunens, G., Einbergs, E., Laganovska, K., Zolotarjovs, A., Vilks, K., Skuja, L., & Smits, K. (2024). Optical fiber-based open source low cost portable spectrometer system. HardwareX, 18, e00530.
Letko, E., Bundulis, A., Vanags, E., & Mozolevskis, G. (2024). Lossy mode resonance in photonic integrated circuits. Optics and Lasers in Engineering, 181, 108387.
Bakhet, S., Tamulevičienė, A., Vasiliauskas, A., Andrulevičius, M., Meškinis, Š., Tamulevičius, S., ... & Tamulevičius, T. (2024). Antiviral and antibacterial efficacy of nanocomposite amorphous carbon films with copper nanoparticles. Applied Surface Science, 670, 160642.
Yusibova, G., Ping, K., Käärik, M., Leis, J., Aruväli, J., Šmits, K., ... & Kongi, N. (2024). Optimizing post-treatment strategies for enhanced oxygen reduction/evolution activity in Co–N–C electrocatalyst. International Journal of Hydrogen Energy, 82, 398-406.
Vasiljević, B. R., Odobaša, D., Vujičić, I., Filimonović, M. B., Smits, K., Mijin, D., & Marinković, D. (2024). Sustainable and fast synthesis of zinc-phthalocyanine for gamma radiation dosimeter application. Radiation Physics and Chemistry, 222, 111816.
Milenković, K., Zeković, I., Milićević, B., Ristić, Z., Smits, K., Popov, A. I., ... & Đorđević, V. (2024). Microwave-assisted solvothermal synthesis of Eu3+-doped CsY2F7 and RbY2F7 phosphorescent nanoparticles. Ceramics International.
Ignatane, L., Ignatans, R., Prikulis, J., Trausa, A., Tipaldi, C. F., Vanags, E., ... & Sarakovskis, A. (2024). Fabrication of Large-Area High-Resolution Templates by Focused Ion Beam Combined with Colloidal Nanoparticle Dimer Deposition for SERS Substrates. Nanomaterials, 14(22), 1784.
Zhairabany, H., Khaksar, H., Vanags, E., & Marcinauskas, L. (2024). Effect of molybdenum concentration and deposition temperature on the structure and tribological properties of the diamond-like carbon films. Crystals, 14(11), 962.
Avotina, L., Goldmane, A. E., Zaslavskis, A., Romanova, M., Vanags, E., Sorokins, H., ... & Dekhtyar, Y. (2023). Estimation of Thermal Stability of Si-SiO2-W Nanolayered Structures with Infrared Spectrometry. Materials, 17(1), 7.
Gopi, S. V., Spalatu, N., Katerski, A., Kuliček, J., Razek, B., Ukraintsev, E., ... & Acik, I. O. (2024). An alternative chlorine-assisted optimization of CdS/Sb2Se3 solar cells: Towards understanding of chlorine incorporation mechanism. Journal of Alloys and Compounds, 1005, 176175.
Maskova, L., Ignatans, R., Viksna, A., Sarakovskis, A., Knite, M., & Kucinskis, G. (2024). Wet-Chemical Synthesis of a Protective Coating on NCM111 Cathode: The Quantified Effects of Washing, Sintering and Coating. Journal of The Electrochemical Society, 171(10), 100520.
Mālnieks, K., Kļimenko, S., Sherrell, P. C., Šarakovskis, A., Eglītis, R., Šmits, K., ... & Šutka, A. (2025). Niobium‐Doped Titanium Dioxide: Effect of Conductivity on Metal‐Semiconductor Tribovoltaic Devices. Advanced Materials Interfaces, 12(1), 2400567.
Tipaldi, C. F., Vitols, K., Kokis, T., Trausa, A., & Sarakovskis, A. (2024). Experimental and Theoretical Comparison and Analysis of Surface-Enhanced Raman Scattering Substrates with Different Morphologies. Applied Sciences, 14(19), 9040.
Robalds, A., Bikovens, O., Dēliņa, A., Ponomarev, N. P., Purmalis, O., Tomsone, L. E., & Vanags, E. (2024). Data on the characterization of seaweed, wheat bran, and other food processing byproducts as feasible biosorbents. Data in Brief, 53, 110214.
Butikova, J., Pervenecka, J., Vitols, K., Tropins, E., Vanags, E., Bundulis, A., ... & Grube, J. (2024). Exposure and post-bake thermal treatment in one step for SU8 photoresist. Nano-Structures & Nano-Objects, 38, 101139.
Vlassov, S., Oras, S., Trausa, A., Tiirats, T., Butanovs, E., Polyakov, B., ... & Kyritsakis, A. (2024). Reshaping covalent nanowires by exploiting an unexpected plasticity mediated by deformation twinning. Small, 20(1), 2304614.
Trausa, A., Tipaldi, C. F., Ignatane, L., Polyakov, B., Oras, S., Butanovs, E., ... & Smits, K. (2024). Heat-Induced Fragmentation and Adhesive Behaviour of Gold Nanowires for Surface-Enhanced Raman Scattering Substrates. ChemEngineering, 8(1), 15.
Polyakov, B., Kadiwala, K., Butanovs, E., Dipane, L., Trausa, A., Bocharov, D., & Vlassov, S. (2024). Synthesis of ZnS/Al2O3/TaSe2 core/shell nanowires using thin Ta metal film precursor. ChemEngineering, 8(1), 25.
Šutka, A., Bitina, S., Smits, K., Šutka, A., Bikse, L., Maiorov, M., ... & Lazdovica, K. (2024). Rapid, high-yield aqueous synthesis of ultrafine magnetite nanoparticles from Fe (III) precursor at room temperature. Journal of Materials Science, 59(2), 447-457.
Zubkins, M., Strods, E., Vibornijs, V., Sarakovskis, A., Nedzinskas, R., Ignatans, R., ... & Azens, A. (2024). Deposition and photoluminescence of zinc gallium oxide thin films with varied stoichiometry made by reactive magnetron co-sputtering. Journal of Alloys and Compounds, 976, 173218.
Laganovska, K., Vitola, V., Einbergs, E., Bite, I., Zolotarjovs, A., Leimane, M., ... & Smits, K. (2023). Impact of Europium and Niobium Doping on Hafnium Oxide (HfO2): Comparative Analysis of Sol–Gel and Combustion Synthesis Methods. Ceramics, 7(1), 15-28.
Butanovs, E., Zubkins, M., Strods, E., Vibornijs, V., Kadiwala, K., Ignatane, L., ... & Purans, J. (2024). Impact of temperature and film thickness on α-and β-phase formation in Ga2O3 thin films grown on a-plane sapphire substrate. Thin Solid Films, 803, 140467.
Dunce, M., Plyushch, A., Birks, E., Svirskas, Š., Banys, J., Jankauskas, P., ... & Bundulis, A. (2024). Free‐standing 0.9 Na0. 5Bi0. 5TiO3‐0.1 Sr0. 7Bi0. 2TiO3 thick films produced by water‐based tape‐casting method. Journal of the American Ceramic Society.
Vanags, E., Bite, I., Ignatane, L., Ignatans, R., Trausa, A., Tipaldi, C. F., ... & Smits, K. (2024). Zinc Oxide Tetrapods Doped with Silver Nanoparticles as a Promising Substrate for the Detection of Biomolecules via Surface-Enhanced Raman Spectroscopy. ChemEngineering, 8(1), 19.
2023
Milićević, B., Periša, J., Ristić, Z., Milenković, K., Antić, Ž., Smits, K., ... & Dramićanin, M. D. (2022). Hydrothermal Synthesis and Properties of Yb3+/Tm3+ Doped Sr2LaF7 Upconversion Nanoparticles. Nanomaterials, 13(1), 30.
Zarmehri, E., Raudsepp, R., Šmits, K., Käämbre, T., Šutka, A., Yörük, C. R., ... & Kruusenberg, I. (2023). Lead and Nitrogen Co-Doped Multi-Walled Carbon Nanotube Electrocatalyst for Oxygen Reduction Reaction. Journal of The Electrochemical Society, 170(11), 114505.
Singh, A. K., Drunka, R., Smits, K., Vanags, M., Iesalnieks, M., Joksa, A. A., ... & Steins, I. (2023). Nanomechanical and electrochemical corrosion testing of nanocomposite coating obtained on AZ31 via plasma electrolytic oxidation containing TiN and SiC nanoparticles. Crystals, 13(3), 508.
Nefedova, A., Rausalu, K., Zusinaite, E., Kisand, V., Kook, M., Smits, K., ... & Ivask, A. (2023). Antiviral efficacy of nanomaterial-treated textiles in real-life like exposure conditions. Heliyon, 9(9).
Laganovska, K., Bite, I., Zolotarjovs, A., Einbergs, E., Vitola, V., Dile, M., & Smits, K. (2023). Thermostimulated luminescence analysis of oxygen vacancies in HfO2 nanoparticles. Materials Research Bulletin, 167, 112409.
Andzane, J., Katkov, M. V., Buks, K., Sarakovskis, A., Smits, K., & Erts, D. (2023). Synthesis, magnetoresistance, and thermoelectrical properties of environmentally stable n-type nitrogen-doped multiwalled carbon nanotubes. Carbon Trends, 13, 100302.
Avotina, L., Goldmane, A. E., Vanags, E., Trimdale-Deksne, A., Bumbure, L., Romanova, M., ... & Dekhtyar, Y. (2023). Characterization of Structural Stability of Magnetron Sputtered Tungsten-boron Thin Films at Elevated Temperatures.
Avotina, L., Zarins, A., Nesenbergs, J., Vanags, E., Lescinskis, A., Ansone, A., ... & Kizane, G. (2023). Impact of storage conditions on preparation of activated carbon from sheep wool fibres.
Vanags, E., Abolins, A., & Cabulis, U. (2023). Lipase catalyzed self-epoxidation of tall oil fatty acids in batch and continuous flow conditions. Journal of Polymers and the Environment, 31(5), 2166-2176.
Dile, M., Laganovska, K., Zolotarjovs, A., Bite, I., Vanags, E., Pudza, I., ... & Smits, K. (2023). The effect of surfactants and precursors on the structure and properties of ZnS: Cu nanocrystalline particles. Nano-Structures & Nano-Objects, 35, 101023.
Glaskova-Kuzmina, T., Dejus, D., Jātnieks, J., Kruuv, P. P., Zolotarjovs, A., Einbergs, E., & Vanags, E. (2023). Effect of printing direction and post-printing conditions on bending properties of ULTEM 9085. Journal of Composites Science, 7(8), 316.
Zhairabany, H., Dovydaitis, V., Khaksar, H., Vanags, E., Gnecco, E., & Marcinauskas, L. (2023). Influence of molybdenum concentration on the microstructure and nanotribological properties of diamond-like carbon films. Journal of Materials Science, 58(33), 13437-13448.
Bite, I., Laganovska, K., Vanags, E., & Vitola, V. (2023). Synthesis and characterization of translucent hafnia ceramics. Materialia, 32, 101887.
Avotina, L., Bikse, L., Dekhtyar, Y., Goldmane, A. E., Kizane, G., Muhin, A., ... & Zaslavskis, A. (2023). Tungsten–SiO2–Based Planar Field Emission Microtriodes with Different Electrode Topologies. Materials, 16(17), 5781.
Dunce, M., Birks, E., Antonova, M., Bikse, L., Livins, M., & Sternberg, A. (2023). Chemical composition of Na0. 5Bi0. 5TiO3 solid solutions with Sr0. 7Bi0. 2TiO3 on a local level. Ceramics International, 49(15), 25043-25050.
Manika, I., Krasta, T., Maniks, J., Bikse, L., Susinska, J., Leimane, M., ... & Popov, A. I. (2023). Effect of ion-induced nuclear reactions on structure modification and radiolysis in LiF irradiated by 410 MeV 36S ions. Optical Materials, 138, 113686.
Arslan, H., Aulika, I., Sarakovskis, A., Bikse, L., Zubkins, M., Azarov, A., ... & Purans, J. (2023). Reactive pulsed direct current magnetron sputtering deposition of semiconducting yttrium oxide thin film in ultralow oxygen atmosphere: A spectroscopic and structural investigation of growth dynamics. Vacuum, 211, 111942.
Zubkins, M., Vibornijs, V., Strods, E., Butanovs, E., Bikse, L., Ottosson, M., ... & Azens, A. (2023). Deposition of Ga2O3 thin films by liquid metal target sputtering. Vacuum, 209, 111789.
Zelencova-Gopejenko, D., Videja, M., Grandane, A., Pudnika-Okinčica, L., Sipola, A., Vilks, K., ... & Liepinsh, E. (2023). Heart-type fatty acid binding protein binds long-chain acylcarnitines and protects against lipotoxicity. International Journal of Molecular Sciences, 24(6), 5528.
Eglītis, R., Kraukle, A., Käämbre, T., Šmits, K., Ignatāns, R., Rubenis, K., & Šutka, A. (2023). Nb, Ta and Hf–The tri-dopant tournament for the enhancement of TiO2 photochromism. Journal of Photochemistry and Photobiology A: Chemistry, 439, 114620.10.1016/j.jphotochem.2023.114620
Krieke, G., Doke, G., Antuzevics, A., Ignatans, R., Pudza, I., & Kuzmin, A. Structure and Persistent Luminescence of Novel Pr-Doped Mg3lu2ge3o12 Garnet. Available at SSRN 4402666.10.2139/ssrn.4402666
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.