Kristina Čajko

OBLASTI NAUČNOG ISTRAŽIVANJA
• funkcionalni materijali, sinteza poluprovodničkih materijala, ispitivanje električnih, morfoloških i optičkih osobina materijala za primenu u neuromorfnim sistemima, memorijskim i optičkim uređajima

OBRAZOVANJE
• 2018., diploma doktorskih studija, Departman za fiziku, Prirodno-matematički fakultet, Univerzitet Novi Sad
• 2009., diploma master studija, Departman za fiziku, Prirodno-matematički fakultet, Univerzitet Novi Sad
• 2007., diploma osnovnih studija, Departman za fiziku, Prirodno-matematički fakultet, Univerzitet Novi Sad

NASTAVA I KURSEVI
• Predmeti koje drži na master studijama
Memristivni materijali
• Predmeti koje drži na doktorskim studijama
Mikrostruktura funkcionalnih materijala

ODABRANE REFERENCE
• K. O. Čajko, D. L. Sekulić, R. Yatskiv, J. Vaniš, S. R. Lukić–Petrović, Impact of Ag concentration in As-S-Se chalcogenide on physical, topological and resistive switching properties, Journal of Non-Crystalline Solids, 2023, Vol. 622, 122663, pp 1–11.
• K. O. Čajko, D. L. Sekulić, S. Lukić–Petrović, Dielectric and bipolar resistive switching properties of Ag doped As-S-Se chalcogenide for non-volatile memory applications, Materials Chemistry and Physics, 2023, Vol. 296, pp 127301.
• K. O. Čajko, D. L. Sekulić, M. Nikolić, S. R. Lukić–Petrović, Electrical Characteristics of Chalcogenide Doped With Silver as Active Layer in Memristive Devices, Proc. 2023 IEEE 33rd International Conference on Microelectronics (MIEL), Niš, Serbia, 2023, pp. 59-62, ISBN 979-8-3503-4775-3.
• D. L. Sekulić, K. O. Čajko, T. B. Ivetić, Characterization of Humidity Sensor Based on Nanostructured Porous LNTO Ceramics, Proc. 2023 IEEE 33rd International Conference on Microelectronics (MIEL), Niš, Serbia, pp. 51-54, ISBN 979-8-3503-4775-3.
• K. O. Čajko, M. Dimitrievska, D. L. Sekulić, D. M. Petrović, S. Lukić–Petrović, Ag-doped As–S–Se chalcogenide glasses: a correlative study of structural and dielectrical properties, J. Mater. Sci: Mater. Electron., 2021, Vol. 32, Issue 5, pp 6688–6700.
• K. O. Čajko, D. L. Sekulić, D. M. Petrović, V. Labaš, S. Minárik, S. J. Rakić, S. R. Lukić–Petrović, Study of electrical and microstructural properties of Ag-doped As-S-Se chalcogenide glasses, Journal of Non-Crystalline Solids, 2021, Vol. 571, 121056, pp 1–11.
• K. O. Čajko, D. L. Sekulić, S. R. Lukić–Petrović, Influence of Silver Content in Glassy Matrix on Resistive Switching Behavior, Proc. 2021 IEEE 32nd International Conference on Microelectronics (MIEL), Niš, Serbia, 2021, pp. 161-164, ISBN 978-1-6654-4526-9.
• K. Čajko, S. Lukić–Petrović, N. Ćelić, P. Noga, D. Vaňa, Influence of different metal concentrations on the morphology of Ag–As2Ch3 thin films analyzed by Rutherford Backscattering Spectrometry and Energy Dispersive Spectroscopy, Applied Surface Science, 510, 2020, 145430.
• K. O. Čajko, D. L. Sekulić, D. M. Petrović, N. Ćelić, V. Labaš, M. Kubliha, S. Lukić–Petrović, Behavior of Electrical Conductivity and Dielectric Study of Chalcogenide Ag0.5(As40S30Se30)99.5 Glass, Journal of Electronic Materials, 2019, Vol. 48, Issue 10, pp 6512–6520.
• K. O. Čajko, D. L. Sekulić, D. M. Petrović, T. B. Ivetić, S. R. Lukić–Petrović, Electrical Characteristics of Ag10(As40S30Se30)90 as Resistive Switching Material for Potential Application in Memory Devices, Proc. 2019 IEEE 31st International Conference on Microelectronics (MIEL), Niš, Serbia, 2019, pp. 173-176, ISBN 978-1-7281-3418-5.
• K. O. Čajko, D. L. Sekulić, S. Lukić–Petrović, M. V. Šiljegović, D. M. Petrović, Temperature–dependent electrical properties and impedance response of amorphous Agx(As40S30Se30)100–x chalcogenide glasses, J. Mater. Sci: Mater. Electron., 28, 1, 2017, 120–128.
• T.B. Ivetić, N.L. Finčur, B.F. Abramović, M.R. Dimitrievska, G.R. Štrbac, K.O. Čajko, B.B. Miljević, Lj.R. Đačanin, S.R. Lukić–Petrović, Environmentally friendly photoactive heterojunction zinc tin oxide nanoparticles, Ceramics International, 42, 2, 2016, 3575–3583.

UČEŠĆE NA DOMAĆIM PROJEKTIMA
• ,,Razvoj novih visoko-osetljivih senzora za monitoring gasnih zagađenja i vlažnosti u Vojvodini”, APV Pokrajinski sekretarijat za visoko obrazovanje i naučnoistraživačku delatnost, br. projekta: 142-451-2635/2021-01/2.
• ,,Novi halkogenidni materijali za efikasno transformisanje i korišćenje energijeˮ, APV Pokrajinski sekretarijat za visoko obrazovanje i naučnoistraživačku delatnost,br. projekta: 142-451-2678/2021-01/2.
• ,,Osobine i električna svojstva dopiranih amorfnih hakogenidnih materijala i nanostrukturne keramikeˮ, APV Pokrajinski sekretarijat za nauku i tehnološki razvoj, br. projekta: 114-451-1745/2016-01.
• ,,Optimizacija primene mešanih nanokristalnih oksidnih fotokatalizatora u cilju smanjenja prisustva nepoželjnih farmaceutika u otpadnim vodama u slivu Dunava na području Vojvodineˮ, Pokrajinski sekretarijat za nauku i tehnološki razvoj AP Vojvodine, br. projekta: 114-451-595/2015-02.
• ,,Fizika amorfnih i nanostrukturnih materijalaˮ, Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije, br. projekta: ОN 171022.
• ,,Materijali redukovane dimenzionalnosti za efikasnu apsorpciju svetlosti i konverziju energije’’, Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije, br. projekta: III45020.

UČEŠĆE NA MEĐUNARODNIM PROJEKTIMA
• 2020-2022, Program za finansiranje multilateralne naučne i tehnološke saradnje u Dunavskom regionu, ,,Priprema i karakterizacija materijala neuređene strukture za primenu u infracrvenoj oblasti spektra’’ (DS 13, APVV-DS-FR-19-0036), br. projekta: 451-03-01085/2020-09.
• 2017-2018, Program za finansiranje multilateralne naučne i tehnološke saradnje u Dunavskom regionu, ,,Fizičke osobine stakala dizajniranih za aplikaciju u infracrvenom delu spektra i memorijskim uređajima’’ (DS-2016-0038), br. projekta: 337-00-00136/2016-09/43

OSTALO
Istraživački posete i usavršavanja na partnerskim institucijama u inostranstvu:
• novembar 2017, novembar 2022 – Institut za fotoniku i elektroniku u Pragu, Češke akademije nauka, Prag, Republika Češka.
• oktobar 2018, maj-jun 2022 – Slovački tehnološki univerzitetu u Bratislavi, Fakultet za nauku o materijalima i tehnologiju u Trnavi, Institut za nauku materijala, Slovačka.
• novembar 2017 – Institut za strukturu i mehaniku minerala, Departmana za strukturu i osobine materijala, Češke akademije nauka, Prag, Republika Češka.
• avgust 2014 – Tehnološki institutu u Karlsrue-u (KIT).

RESEARCH INTERESTS
• functional materials, synthesis of semiconductor materials, investigation of electrical, morphological and optical properties of materials for application in neuromorphic systems, memory and optical devices

EDUCATION
• 2018., Diploma of doctoral studies, Department of Physics, Faculty of Sciences, University of Novi Sad
• 2009., Master’s degree, Department of Physics, Faculty of Sciences, University of Novi Sad
• 2007., Bachelor’s degree, Department of Physics, Faculty of Sciences, University of Novi Sad

TEACHING AND COURSES
• Courses on master’s studies
Memristive materials
• Courses in doctoral studies
Microstructure of functional materials

SELECTED PUBLICATIONS
• K. O. Čajko, D. L. Sekulić, R. Yatskiv, J. Vaniš, S. R. Lukić–Petrović, Impact of Ag concentration in As-S-Se chalcogenide on physical, topological and resistive switching properties, Journal of Non-Crystalline Solids, 2023, Vol. 622, 122663, pp 1–11.
• K. O. Čajko, D. L. Sekulić, S. Lukić–Petrović, Dielectric and bipolar resistive switching properties of Ag doped As-S-Se chalcogenide for non-volatile memory applications, Materials Chemistry and Physics, 2023, Vol. 296, pp 127301.
• K. O. Čajko, D. L. Sekulić, M. Nikolić, S. R. Lukić–Petrović, Electrical Characteristics of Chalcogenide Doped With Silver as Active Layer in Memristive Devices, Proc. 2023 IEEE 33rd International Conference on Microelectronics (MIEL), Niš, Serbia, 2023, pp. 59-62, ISBN 979-8-3503-4775-3.
• D. L. Sekulić, K. O. Čajko, T. B. Ivetić, Characterization of Humidity Sensor Based on Nanostructured Porous LNTO Ceramics, Proc. 2023 IEEE 33rd International Conference on Microelectronics (MIEL), Niš, Serbia, pp. 51-54, ISBN 979-8-3503-4775-3.
• K. O. Čajko, M. Dimitrievska, D. L. Sekulić, D. M. Petrović, S. Lukić–Petrović, Ag-doped As–S–Se chalcogenide glasses: a correlative study of structural and dielectrical properties, J. Mater. Sci: Mater. Electron., 2021, Vol. 32, Issue 5, pp 6688–6700.
• K. O. Čajko, D. L. Sekulić, D. M. Petrović, V. Labaš, S. Minárik, S. J. Rakić, S. R. Lukić–Petrović, Study of electrical and microstructural properties of Ag-doped As-S-Se chalcogenide glasses, Journal of Non-Crystalline Solids, 2021, Vol. 571, 121056, pp 1–11.
• K. O. Čajko, D. L. Sekulić, S. R. Lukić–Petrović, Influence of Silver Content in Glassy Matrix on Resistive Switching Behavior, Proc. 2021 IEEE 32nd International Conference on Microelectronics (MIEL), Niš, Serbia, 2021, pp. 161-164, ISBN 978-1-6654-4526-9.
• K. Čajko, S. Lukić–Petrović, N. Ćelić, P. Noga, D. Vaňa, Influence of different metal concentrations on the morphology of Ag–As2Ch3 thin films analyzed by Rutherford Backscattering Spectrometry and Energy Dispersive Spectroscopy, Applied Surface Science, 510, 2020, 145430.
• K. O. Čajko, D. L. Sekulić, D. M. Petrović, N. Ćelić, V. Labaš, M. Kubliha, S. Lukić–Petrović, Behavior of Electrical Conductivity and Dielectric Study of Chalcogenide Ag0.5(As40S30Se30)99.5 Glass, Journal of Electronic Materials, 2019, Vol. 48, Issue 10, pp 6512–6520.
• K. O. Čajko, D. L. Sekulić, D. M. Petrović, T. B. Ivetić, S. R. Lukić–Petrović, Electrical Characteristics of Ag10(As40S30Se30)90 as Resistive Switching Material for Potential Application in Memory Devices, Proc. 2019 IEEE 31st International Conference on Microelectronics (MIEL), Niš, Serbia, 2019, pp. 173-176, ISBN 978-1-7281-3418-5.
• K. O. Čajko, D. L. Sekulić, S. Lukić–Petrović, M. V. Šiljegović, D. M. Petrović, Temperature–dependent electrical properties and impedance response of amorphous Agx(As40S30Se30)100–x chalcogenide glasses, J. Mater. Sci: Mater. Electron., 28, 1, 2017, 120–128.
• T.B. Ivetić, N.L. Finčur, B.F. Abramović, M.R. Dimitrievska, G.R. Štrbac, K.O. Čajko, B.B. Miljević, Lj.R. Đačanin, S.R. Lukić–Petrović, Environmentally friendly photoactive heterojunction zinc tin oxide nanoparticles, Ceramics International, 42, 2, 2016, 3575–3583.

PARTICIPATION IN NATIONAL PROJECTS
• “Development of new highly-sensitive sensors for monitoring gas pollution and humidity in Vojvodina“, APV Provincial Secretariat for Higher Education and Scientific Research, grant no. 142-451-2635/2021-01/2.
• “New chalcogenide materials for efficient transformation and use of energy“, APV Provincial Secretariat for Higher Education and Scientific Research grant no. 142-451-2678/2021-01/2.
• “Properties and electrical characteristics of doped amorphous chalcogenide materials and nanostructured ceramics“, APV Provincial Secretariat for Science and Technological Development, grant no. 114-451-1745/2016-01.
• “Optimization of the application of mixed nanocrystalline oxide photocatalysts in order to reduce the presence of undesirable pharmaceuticals in wastewater in the Danube basin in the area of Vojvodina“, Provincial Secretariat for Science and Technological Development of AP Vojvodina, grant no. 114-451-595/2015-02.
• “Physics of amorphous and nanostructured materials“, Ministry of Education, Science and Technological Development of the Republic of Serbia, grant no. ON 171022.
• “Materials of reduced dimensions for efficient light absorption and energy conversion“, Ministry of Education, Science and Technological Development of the Republic of Serbia, grant no.III 45020.

PARTICIPATION IN INTERNATIONAL PROJECTS
• 2020-2022., Multilateral Scientific and Technological Cooperation Projects in the Danube Region, “Preparation and characterisation of non-ordered materials for application in infrared spectra“ (DS 13, APVV-DS-FR-19-0036), grant no. 451-03-01085/2020-09.
• 2017-2018., Multilateral Scientific and Technological Cooperation Projects in the Danube Region, “Physical properties of glasses designed for applications in infrared region of spectrum and memory devices“ (DS-2016-0038), grant no. 337-00-00136/2016-09/43.

OTHER
Research visits and training at partner institutions abroad:
• November 2017, November 2022 – Institute of Photonics and Electronics of the Czech Academy of Sciences, Prague, Czech Republic.
• October 2018, May-June 2022 – Institute of Materials, Faculty of Materials Science and Technology, Slovak University of Technology in Bratislava, Slovakia.
• November 2017 – Institute of Rock Structure and Mechanics, Prague, Czech Republic.
• August 2014 – Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany.