Dr. Karolis Kazlauskas

Dr. Karolis Kazlauskas

Phone: +370 522 34 499

E-mail: 

Institute of Photonics and Nanotechnology (IPN)

Organic Photonics, Optoelectronics, Photophysics and optical spectroscopy of organic compounds

Chief Researcher, Head of Organic optoelectronics group at IPN

Organic optoelectronics, establishing structure-property relationship of compounds, singlet/triplet exciton diffusion, thermally activated delayed fluorescence (TADF), blue TADF emitters, OLED, device lifetime, organic solid state lasers, TTA-mediated photon upconversion

https://orcid.org/my-orcid?orcid=0000-0001-7900-0465

https://www.researchgate.net/profile/Karolis-Kazlauskas

https://scholar.google.com/citations?user=Fooe1_8AAAAJ

1. L. NAIMOVIČIUS, E. RADIUNAS, B. CHATINOVSKA, A. JOZELIŪNAITĖ, E. ORENTAS, K. KAZLAUSKAS, Functionalized diketopyrrolopyrrole compounds for NIR-to-visible photon upconversion, J. Mater. Chem. C 11, 698 (2023).
2. A. JOZELIŪNAITĖ, A. NENIŠKIS, A. BERTRAN, A.M. BOWEN, M. DI VALENTIN, S. RAIŠYS, P. BARONAS, K. KAZLAUSKAS, L. VILČIAUSKAS, E. ORENTAS, Fullerene Complexation in a Hydrogen-Bonded Porphyrin Receptor via Induced-Fit: Cooperative Action of Tautomerization and C–H···π Interactions, J. Am. Chem. Soc. (2022). https://doi.org/10.1021/jacs.2c10668.
3. D. BANEVIČIUS, G. KREIZA, R. KLIOŠTORAITIS, S. JURŠĖNAS, T. JAVORSKIS, V. VAITKEVIČIUS, E. ORENTAS, AND K. KAZLAUSKAS, Enhanced Blue TADF in a D–A–D Type Naphthyridine Derivative with an Asymmetric Carbazole-Donor Motif, J. Mater. Chem. C 10, 4813 (2022).
4. S. RAIŠYS, S. JURŠĖNAS, AND K. KAZLAUSKAS, Boost in Solid‐State Photon Upconversion Efficiency through Combined Approach of Melt‐Processing and Purification, Sol. RRL 6, 2100873 (2022).
5. G. KREIZA, D. BERENIS, D. BANEVIČIUS, S. JURŠĖNAS, T. JAVORSKIS, E. ORENTAS, AND K. KAZLAUSKAS, High Efficiency and Extremely Low Roll-off Solution- and Vacuum-Processed OLEDs Based on Isophthalonitrile Blue TADF Emitter, Chem. Eng. J. 412, 128574 (2021).
6. G. KREIZA, D. BANEVIČIUS, J. JOVAIŠAITĖ, S. JURŠĖNAS, T. JAVORSKIS, V. VAITKEVIČIUS, E. ORENTAS, K. KAZLAUSKAS, Realization of deep-blue TADF in sterically controlled naphthyridines for vacuum- and solution-processed OLEDs, J. Mater. Chem. C 8, 8560–8566 (2020).
7. E. RADIUNAS, S. RAIŠYS, S. JURŠĖNAS, A. JOZELIŪNAITĖ, T. JAVORSKIS, U. ŠINKEVIČIŪTĖ, E. ORENTAS, K. KAZLAUSKAS, Understanding the limitations of NIR-to-visible photon upconversion in phthalocyanine-sensitized rubrene systems, J. Mater. Chem. C 8, 5525–5534 (2020).
8. P. BARONAS, G. KREIZA, M. MAMADA, S. MAEDERA, P. ADOMĖNAS, O. ADOMĖNIENĖ, K. KAZLAUSKAS, C. ADACHI, S. JURŠĖNAS, “Enhanced Energy Transfer in Doped Bifluorene Single Crystals: Prospects for Organic Lasers” Adv. Optical Mater. 1901670 (2019).
9. S. RAIŠYS, S. JURŠĖNAS, Y. C. SIMON, C. WEDER, K. KAZLAUSKAS, “Enhancement of triplet-sensitized upconversion in rigid polymers via singlet exciton sink approach”, Chem. Sci. 9, 6796 (2018).
10. S. RAIŠYS, K. KAZLAUSKAS, S. JURŠĖNAS, and Y.C. SIMON, “The Role of Triplet Exciton Diffusion in Light-Upconverting Polymer Glasses”, ACS Appl. Mater. Interfaces 8, 15732 (2016).

Project leader in the following grants

● 2021 - 2024 "Addressing the lifetime issues of the latest generation OLEDs: analysis and possible solutions" (Researcher project, The Research Council of Lithuania).

● 2018 - 2021 "Triplet state engineering in organic optoelectronics compounds" (Global Grant, the Research Council of Lithuania).

● 2017 – 2020 “Enhancing light upconversion efficiency in organic films for optoelectronic applications” (Researcher project, The Research Council of Lithuania).

● 2013 – 2015 „Flexible structure bearing bifluorene compounds for optoelectronics industry, BiFluorenas“ (EU structural funds).

● K. KAZLAUSKAS, „Incoherent photon upconversion and new generation OLED“, the 16th National Conference on Lasers, Science and Technology ( August 27, 2021, Dubingiai, Lithuania).

● K. KAZLAUSKAS „Photophysics of TADF emitters for high-efficiency OLEDs“, The 2019 Kyoto Prize Workshop: Advanced Technology, November 13, 2019, Kyushu University, Japan.

● K. KAZLAUSKAS, S. RAIŠYS, S. JURŠĖNAS, Y.C. SIMON, “ Role of Triplet Exciton Diffusion in Light-Upconverting Polymer Glasses”, 2016 EMN Qingdao Meeting, Energy Materials Nanotechnology (June 7-10, 2016, Qingdao, China).

● PhD students
2018 – 2022 Edvinas Radiunas
2018 – 2022 Dovydas Banevičius
2014 – 2018 Gediminas Kreiza
2013 – 2017 Steponas Raišys

● Postdoc students
2021 – 2023 Steponas Raišys

Approx. 1-2 (bachelor/master) students per year.
In 2022 student Lukas Naimovičius was awarded Magna Cum Laude.

● Expert of the Research Council of Lithuania; served as a project evaluator for the different national/international research programmes.

● Evaluation of research proposals submitted to the State funding agencies of Poland.

● Referee for the journals "Nature Photonics", “Chemical Society Reviews”, „Angewandte Chemie“, “Advanced Functional Materials”, “ACS Applied Materials & Interfaces”, „Journal of Physical Chemistry Letters“, “Journal of Materials Chemistry C” etc.

2020 - Vilnius University Rector’ award for the best scientific paper

2018 - Vilnius University Rector’ award for the major scientific achievements

2016 - Vilnius University Rector’ award for the best scientific paper

2011 - Young scientist fellowship of Lithuania Academy of Sciences

2008 - Vilnius University Rector' award of young scientist

2006 - National Scholarship of young scientist

2004 - Lithuania Academy of Sciences award for the young scientist research work in the field of mathematics, physics and chemistry

2000 - Lithuania Academy of Sciences award for the student research work in the field of mathematics, physics and chemistry

● Popular science article on the technolgies developed by VU physicists that can be applied in foldable TVs and energy-generating clothes https://www.vu.lt/en/news-events/news/technologies-developed-by-vu-physicists-applied-in-foldable-tvs-to-energy-generating-clothes

● Popular science article on the new approach of VU scientists to realize blue light that opens up wide opportunities for commercialization https://www.vu.lt/en/news-events/news/new-approach-of-vu-scientists-to-blue-light-opens-up-wide-opportunities-for-commercialization

● Establishment of Organic Optoelectronic Technology Lab in the National Center for Physical Sciences and Technology

● Organizer of the 13th International Conference on Optical Probes of Organic and Hybrid Optoelectronic Materials and Applications (July 7-12, 2019, Vilnius, Lithuania)