Pakalka, S., Donėlienė, J., Rudzikas, M., Valančius, K., & Streckienė, G. (2025). Development and experimental investigation of hybrid phase change material thermal energy storage prototype by utilising power-to-heat concept. Applied Thermal Engineering, 126377.
https://doi.org/10.1016/j.applthermaleng.2025.126377
Pakalka, S.; Donėlienė, J.; Rudzikas, M.; Valančius, K.; Streckienė, G. Development and experimental investigation of full-scale phase change material thermal energy storage prototype for domestic hot water, J. Energy Storage. (2024).
https://doi.org/10.1016/j.est.2023.110283
Mačėnaitė, L.; Lugas, D.; Fataraitė-Urbonienė, E.. Machine learning methods for the prediction of abraded butadiene-styrene rubber surface roughness // Materials science = Medžiagotyra. Kaunas : KTU. ISSN 1392-1320. eISSN 2029-7289. 2023, vol. 29, no. 1, p. 126-131. https://doi.org/10.5755/j02.ms.31288
Rudzikas, M.; Donėlienė, J.; Bužavaitė-Vertelienė, E.; Balevičius, Z.; Leuvrey, C.; Šetkus, A. Design and investigation of 1D photonic crystal based structures for BIPV cell colorization by sol-gel dipping technology. Solar Energy, Volume 250, 2023, Pages 285-294, ISSN 0038-092X, https://doi.org/10.1016/j.solener.2022.12.028
Rudzikas, M.; Pakalka, S.; Donėlienė, J.; Šetkus, A. Exploring the Potential of Pure Germanium Kesterite for a 2T Kesterite/Silicon Tandem Solar Cell: A Simulation Study. Materials. 2023; 16(18):6107. https://doi.org/10.3390/ma1618610
Tadas Paulauskas, Vaidas Pačebutas, Viktorija Strazdienė, Andrejus Geižutis, Jan Devenson, Mindaugas Kamarauskas, Martynas Skapas, Rokas Kondrotas, Mantas Drazdys, Matas Rudzikas, Benjaminas Šebeka, Viliam Vretenár & Arūnas Krotkus. Performance assessment of a triple-junction solar cell with 1.0 eV GaAsBi absorber. Discover Nano 18, 86 (2023). https://doi.org/10.1186/s11671-023-03865-x.
Donėlienė, J.; Fataraitė-Urbonienė, E.; Danchova, N.; Gutzov, S.; Ulbikas, J. The influence of the precursor’s nature and drying conditions on the structure, morphology, and thermal properties of TiO2 aerogels // Gels, MDPI, 2022, vol. 8, , iss. 7, art. no. 422, p. 1-16. https://doi.org/10.3390/gels8070422
Gulbinienė, A.; Fataraitė-Urbonienė, E.; Jucienė, M.; Dobilaitė, V.; Valeika, V. Effect of CO2 laser treatment on the leather surface morphology and wettability // Journal of industrial textiles. Thousand oaks, CA : SAGE. ISSN 1528-0837. eISSN 1530-8057. 2022, vol. 51, iss. 2_suppl. p. 2483S-2498S. https://doi.org/10.1177/15280837211022612
Donėlienė, J.; Fataraitė-Urbonienė, E.; Rudzikas, M.; Pakalka, S.; Danchova, N.; Ulbikas, J. Effect of precursor nature and sol-gel synthesis conditions on TiO2 aerogel’s structure, Molecules. 26 (2021). https://doi.org/10.3390/molecules26165090.
Pakalka, S., Valančius, K.. Experimental investigation and prediction of charging/discharging performance of phase change material based thermal energy storage unit. Environmental and Climate Technologies, (2021)25(1), 600–609. https://doi.org/10.2478/rtuect-2021-0044
Pakalka, S., Valančius, K., & Streckienė, G. Experimental and theoretical investigation of the natural convection heat transfer coefficient in Phase Change Material (PCM) based fin-and-tube heat exchanger. Energies, (2021) 14(3), 1–14. https://doi.org/10.3390/en14030716
Rudzikas, M.; Šetkus, A.; Stange, M.; Ulbikas, J.; Ulyashin, A. Simple interference based colorization of Si based solar cells and panels with ITO/SiNx:H double layer antireflective coatings, Sol. Energy. 207 (2020) 218–227. https://doi.org/10.1016/j.solener.2020.06.091
Pakalka, S., Valančius, K., Streckienė, G. Experimental comparison of the operation of PCM-based copper heat exchangers with different configurations. Applied Thermal Engineering, 2020, 172, 1–9. https://doi.org/10.1016/j.applthermaleng.2020.115138
Pakalka, S.; Valančius, K.; Damonskis, M. Šilumnešio debito įtakos fazinio virsmo medžiagos veikimui tyrimas. Mokslas – Lietuvos ateitis. Aplinkos inžinerija = Science – Future of Lithuania. Environmental Engineering, 2019, 11, 1–5. https://doi.org/10.3846/mla.2019.10578
Donėlienė, J.; Rudzikas, M.; Rades, S.; Dörfel, I.; Peplinski, B.; Sahre, M.; Pellegrino, F.; Maurino, V.; Ulbikas, J.; Galdikas, A.; Hodoroaba, V.D. Morphology and structure of TixOy nanoparticles generated by femtosecond laser ablation in water, Mater. Res. Express. 5 (2018). https://doi.org/10.1088/2053-1591/aaba56
Pakalka, S.; Valančius, K.; Streckienė, G.; Ulbikaitė, V. Fazinio virsmo medžiagos charakteristikų šilumos kaupiklyje skaitinis modeliavimas. Mokslas – Lietuvos ateitis. Aplinkos inžinerija = Science – Future of Lithuania. Environmental Engineering – 2018, 10, 1–7. https://doi.org/10.3846/mla.2018.3225
Varnagiris, Š.; Donėlienė, J.; Tučkutė, S.; Česnienė, J.; Lelis M.; Milčius, D. Expanded Polystyrene Foam Formed from Polystyrene Beads Coated with a Nanocrystalline SiO2 Film and the Analysis of Its Moisture Adsorption and Resistance to Mechanical Stress // Polymer-Plastics Technology and Engineering, 2018, 57:13, 1296-1302. https://doi.org/10.1080/03602559.2017.1381244
Presentations at Conferences
Naik, A. U.; Fataraitė-Urbonienė, E.; Donėlienė, J.; Ulbikas, J.. Thermal stability of pet films for food packaging // Materials engineering and modern manufacturing 2023: 30th international Baltic conference, 19-20 October: book of abstracts. Kaunas : Kaunas University of Technology. ISSN 2669-2104. eISSN 2669-2112. 2023, p. 43.
Shubham, S.; Grigaliūnas, V.; Narmontas, P.; Donėlienė, J.; Ulbikas, J.; Fataraitė-Urbonienė, E.. Scratch resistance of hot stamped multilayer structures vs adhesive nature and thickness // Baltic polymer symposium 2023, Jelgava, Latvia, September 20–22, 2023: book of abstracts. Jelgava : Latvian university of life sciences and technologies. 2023, p. 70.
Baležentis, A.; Dubravskij, P.; Fataraitė-Urbonienė, E.; Ulbikas, J.; Donėlienė, J.; Rudzikas, M.. Evaluation quality of a light-weight / plastic-based PV modules // Advanced materials and technologies: book of abstracts of 25th international conference-school, 21-25 August 2023, Palanga, Lithuania. Kaunas : Kaunas university of technology. ISSN 2669-1930. 2023, P92, p. 133.
Donėlienė, J.; Fataraitė-Urbonienė, E.; Ulbikas, J. Thermal stability of subcritical dried TiO2 aerogels prepared by sol-gel synthesis // 20th international conference on nanosciences & technologies, 4-7 July 2023, Thessaloniki, Greece: book of abstracts. Thessaloniki : [s.n.]. 2023, p. 117.
Baležentis, A.; Ulbikas, J.; Dubravskij, P.; Fataraitė-Urbonienė, E.; Donėlienė, J.; Rudzikas, M.; Exploring Various Plastic Combinations and Assessing Quality of Lightweight PV Modules, 13th //International Conference & Exhibition on Green Flexible Printed Electronics Industry (ICEFPE23) and AGRIVOLTAICS 2023 , Link to program
Ulbikas, J.. Trends in Photovoltaic Technology and Challenges for Research Community“// NIBS conference 2023: Nanotechnology and innovation in the Baltic Sea region, July 3-5, 2023, Sønderborg, Denmark. [S.l.] : [s.n.]. 2023, p. 23.
Matas Rudzikas, Saulius Pakalka, Jolanta Donėlienė, Arūnas Šetkus. A SIMULATION STUDY OF PURE GERMANIUM KESTERITE TO BE USED FOR 2T KESTERITE/SILICON TANDEM CELL. PVSEC 2023
Buchholz, F.; Tune, D.; Messmer T.; Linke, J.; Ulbikas J.; Rohr, C.; Kujik, D.;. Eikelboom, D.W.K; Hirvonen, L.; Fabris, F.; Barin, A.; Borgers, T.; Van Dyck, R.; Sivaramakrishnan Radhakrishnan, H.; Harrison, S.; Bejat, T.; Kroon, J.M.; Mertens, V.; Dullweber, T.; Rosen, I.; Palitzsch, W.; Zaror, Y.; Weiss, I.; Lukinskas P.; Denafas, J.; Vanhanen, T.; Savisalo, T.; Pospischil, M.; Müller, T.; Coskun, O.; Macé, P.; Minamiyama, H.. IBC4EU Project – Piloting Novel Cost-Competitive Bifacial IBC Technology for Vertical Integrated European GW Scale PV Production Value Chain//40th Photovoltaic conference and Exibition, 18 22 September, 2023, Lisbon, Portugal.
Link to program
Donėlienė, J.; Fataraitė-Urbonienė, E.; Ulbikas, J.. Influence of synthesis and ambient drying conditions on the porosity of TiO2 aerogel // Advanced materials and technologies: book of abstracts of 24th international conference-school, 22-26 August 2022, Palanga, Lithuania. Kaunas : Kaunas University of Technology. ISSN 2669-1930. 2022, B-P112, p. 152.
Donėlienė, Jolanta; Fataraitė-Urbonienė, Eglė; Ulbikas, Juras. Influence of synthesis and ambient drying conditions on the porosity of TiO2 aerogel // 19th international conference on nanosciences & nanotechnologies: 5-8 July 2022, Thessaloniki, Greece: book of abstracts. Thessaloniki : [s.n.]. 2022, p. 144. [M.kr.: T 008]
M. Rudzikas, J. Donėlienė, J. Ulbikas, A. Šetkus. Sol-gel Coated 1D Photonic Crystal Structures for Colored PV. SiliconPV https://www.siliconpv.com/
Chacko, Sijo; Franckevičius, Marius; Donėlienė, Jolanta; Rudzikas, Matas; Fataraitė-Urbonienė, Eglė; Fabregat-Santiago, Francisco; Ulbikas, Juras. Enhanced stability and photovoltage for multication perovskite solar cells via hindering photo-inactive perovskite phase formation // Advanced materials and technologies: book of abstracts of 23rd international conference-school, 23-27 August 2021, Palanga, Lithuania. Kaunas : Kaunas university of technology. ISSN 2669-1930. 2021, A-P191, p. 226. ADVANCED MATERIALS AND TECHNOLOGIES 2021 https://advancedmaterials.ktu.edu/
Donėlienė, J.; Ulbikas, J.; Fataraitė-Urbonienė, E.. Influence of synthesis and subcritical drying conditions on the porosity of TiO2 aerogel // Advanced materials and technologies: book of abstracts of 23rd international conference-school, 23-27 August 2021, Palanga, Lithuania. Kaunas : Kaunas university of technology. ISSN 2669-1930. 2021, B-P166, p. 200.
Baležentis, A.; Dubravskij, P.; Fataraitė-Urbonienė, E.; Ulbikas, J.; Donėlienė, J.; Rudzikas, M.. Evaluation Quality of a Light-Weight / Plastic-Based PV Modules// Advanced materials and technologies: book of abstracts of 23rd international conference-school, 23-27 August 2021, Palanga, Lithuania. Kaunas : Kaunas university of technology. ISSN 2669-1930. 2021, P92, p. 133 https://advancedmaterials.ktu.edu/
Baležentis, A.; Galdikas, A. J.; Dubravskij, P.; Ulbikas, J.; Rudzikas, M.; Baležentienė, S. Smart PV Module with Integrated MLPE and Sensing Elements for Improved PV Plant O&M. // Advanced materials and technologies: book of abstracts of 23rd international conference-school, 23-27 August 2021, Palanga, Lithuania. Kaunas : Kaunas university of technology. ISSN 2669-1930. 2021, P93, p. 134 https://advancedmaterials.ktu.edu/
Donėlienė, J.; Ulbikaitė, V.; Urbonienė, E.; Pakalka, S.; Ulbikas, J.. Structural characterization of TiO2 aerogel vs precursor type and gel aging // 18th international conference on nanosciences & nanotechnologies: 5-8 July 2021, Thessaloniki, Greece: book of abstracts. Thessaloniki : [s.n.]. 2021, p. 176.
Petraitienė, S.; Fataraitė-Urbonienė, E.; Ulbikas, J.; Donėlienė, J.. Simulation of single lap adhesive joints behaviour by finite element method // Advanced materials and technologies: book of abstracts of 23rd international conference-school, 23-27 August 2021, Palanga, Lithuania. Kaunas : Kaunas university of technology. ISSN 2669-1930. 2021, C-P143, p. 176.
Rudzikas, M.; Donėlienė, J.; Ulbikas, J.; Bužavaitė-Vertelienė, E., Balevičius, Z.; Šetkus. A.. Characterisation of colored glass plates with bragg lattice structure formed from sol-gel solutions // Advanced materials and technologies: book of abstracts of 23rd international conference-school, 23-27 August 2021, Palanga, Lithuania. Kaunas : Kaunas university of technology. ISSN 2669-1930. 2021, C-P143, p. 176 https://advancedmaterials.ktu.edu/
Matas Rudzikas, Arunas Šetkus, N. Curmei, Dormidont Serban, Jolanta Donėlienė, Juras Ulbikas, Alexander G. Ulyashin. Sol-Gel Method for Double Layer Coated Colored Silicon Solar Cells. EU PVSEC 2021 Proceedings, 2CV.1.50, p. 304 – 305. ISBN: 3-936338-78-7. DOI: 10.4229/EUPVSEC20212021-2CV.1.50
Torstein Haarberg, Philippe Macé, Elina Bosch, Juras Ulbikas, Julius Denafas, Alexander G. Ulyashin. Super PV Project Innovations – LCOE Assessment and Competitiveness. EU PVSEC 2021 Proceedings, 7DO.12.3. p. 1632 – 1636. ISBN: 3-936338-78-7. DOI: 10.4229/EUPVSEC20212021-7DO.12.3
M. Rudzikas, A. Šetkus, M. Stange, J. Ulbikas, A.G. Ulyashin. Colorization of Si based solar cells and panels using double layer coatings. PVSEC 2020
Pakalka, S., Valančius, K., & Damonskis, M. (2020). Effect of open and closed operation modes on the performance of phase change material based copper heat exchanger. In 11th International conference „Environmental Engineering“ 21-22 May 2020, Vilnius Gediminas Technical University, Lithuania (pp. 1–7). Vilnius: VGTU Press. https://doi.org/10.3846/enviro.2020.611
Xiang Ma, Huaitian Bu, Matas Rudzikas, Julius Denafas, Juras Ulbikas, Alexander G. Ulyashin. Combustion Based Delamination of Si Glass/Glass Photovoltaic Modules. EU PVSEC 2020 Proceedings, 4AV.3.30. ISBN: 3-936338-73-6.
Juras Ulbikas, Matas Rudzikas, P. Dubravskij, Alexander G. Ulyashin. High Efficiency Flexible and Lightweight PV Modules Using Crystalline Silicon Solar Cells. EU PVSEC 2020 Proceedings, 4AV.2.29. ISBN: 3-936338-73-6
J. Luis Domínguez-García, Llus Trilla, Pol Paradell Sola, V. Izquierdo Roca, Dainius Horbacauskas, Juras Ulbikas, Karim Khemiri, Marko Jankovec, Damjan Golob, Jérémie Aimé. Key Innovations on power electronics and communications leading to a LCOE reduction of solar PV. EU PVSEC 2020 Proceedings, 4AV.3.11. ISBN: 3-936338-73-6.
Juras Ulbikas, Julius Denafas, Vaidvilė Ulbikaitė, Robert Witteck, Marc Köntges, Marko Topic, Francesco Frontini, Pierluigi Bonomo, Erika Saretta, Philippe Macé, Pieter Jan Bolt, Alexander G. Ulyashin, Torstein Haarberg, Wolfram Palitzsch, Barbara Terheiden, Ingrid Weiss, Nicholas LaPointe, J. Luis Domínguez-García. Super PV Progress Report – Developing & Testing Innovative High-Quality PV Systems to Regain European Leadership in the PV Market. PV. EU PVSEC 2020 Proceedings, 7DV.1.5. ISBN: 3-936338-73-6.
J.Ulbikas. Nanocoatings For Enhanced Performance of PV Systems In SUPER PV Project. NANOTEXNOLOGY 2019 https://www.nanotexnology.com/2019/
Juras Ulbikas, Vaidvilė Ulbikaitė, Julius Denafas, Robert Witteck, Marc Köntges, Marko Topic, Francesco Frontini, Pierluigi Bonomo, Erika Saretta, Philippe Macé, Pieter Jan Bolt, Alexander G. Ulyashin, Torstein Haarberg, Wolfram Palitzsch, Barbara Terheiden, Ingrid Weiss, Antonio Fuentes Cano, J. Luis Domínguez-García. Super PV Project – Innovative and High-Quality PV Systems to Regain Leadership of European PV Businesses on the World Market. EU PVSEC 2019 Proceedings, 7DV.2.1, p. 1972 – 1976. ISBN: 3-936338-60-4. DOI: 10.4229/EUPVSEC20192019-7DV.2.1
Matas Rudzikas, Arūnas Šetkus, Marit Stange, Juras Ulbikas. Alexander G. Ulyashin. Simple color modification of commercial solar cells with ITO/SiNx double layer coatings. Fiztech 2019
Ulbikas, J.; Ulbikaitė, V.; Denafas, J.; Witteck, R.; Köntges, M.; Topic, M.; Frontini, F.; Bonomo, P.; Saretta, E.; Macé, P.; Bolt, P. J.; Ulyashin, A. G.; Haarberg, T.; Palitzsch, W.; Terheiden, B.; Weiss, I.; Cano, A. F.; Domínguez-García J.L.. Super PV Project – Innovative and High-Quality PV Systems to Regain Leadership of European PV Businesses on the World Market// EU PVSEC 2019 Proceedings, 7DV.2.1, p. 1972 – 1976. ISBN: 3-936338-60-4. DOI: 10.4229/EUPVSEC20192019-7DV.2.1