Stefan Kolev Kolev
Associate Professor
e-mail:
kolevskk | at | abv | dot | bg
Research Interests
Solid State Computational chemistry
Theoretical Organic Photo-Chemistry: Excited State Reaction Mechanisms
Molecular Design
Quantum Metadynamics
Scientific Experience
2023 - present : Associate Profеssor, Institute of Electronics of the Bulgarian Academy of Sciences, Laboratory “Multifunctional Materials”
2017 - present : Assistant Professor, Institute of Electronics of the Bulgarian Academy of Sciences, Laboratory “Multifunctional Materials”
Education and Training
2014 : PhD in Computational Chemistry: Quantum-chemical investigation of the influence of hydrogen bonds and metal ions on RNA, Faculty of Chemistry and Pharmacy, Sofia University, Bulgaria
2007 : MSc in Organic Materials in the High Technology from Faculty of Chemistry and Pharmacy, Sofia University, Bulgaria
2006 : BSc in Organic Chemistry from Faculty of Chemistry and Pharmacy, Sofia University, Bulgaria
Projects
2023 - 2025 : "Ab initio simulations of the interaction of single carbon atoms and small hydrocarbon molecules in space" KP-06-COST/10 from 2023; Participant
2021 - 2025 : “Study of the possibilities for deposition of two- or multi- layred structures of type: graphene- buffer layer- single crystalline Si substrate”, funded by the Bulgarian National Scientific Research Fund, grant KP-06-58/2 (2021); Participant
2017 - 2021 : “Novel methods for synthesis of graphene and graphene oxide by modification of amorphous and nano-dispersed carbon phases”, funded by the Bulgarian National Scientific Research Fund, grant DN 18/9 (2017); Participant
2010 – 2014 : Other projects concerning computational chemistry funded by the Bulgarian National Scientific Research Fund.
Publications
Theoretical study on the mechanisms of formation of primal carbon clusters and nanoparticles in space. Kalchevski, D. A.; Trifonov, D. V.; Kolev, S. K.; Popov, V. N.; Aleksandrov, H. A.; Milenov, T. I. Physical Chemistry Chemical Physics, 27(4): 1819 - 1833. January 2025.
A Theoretical Examination of Various Complexes of a Proposed Novel Chemosensor Material—Graphene/SiC. Kalchevski, D. A.; Kolev, S. K.; Dimov, D. A.; Trifonov, D.; Avramova, I.; Ivanova, P.; Milenov, T. I. Chemosensors, 12(11): 239. October 2024.
Ab initio study of the mechanism of carbonization of {111} Si-substrate at high temperature. Kalchevski, D A; Trifonov, D V; Kolev, S K; Aleksandrov, H A; Milenov, T I; Materials Chemistry and Physics, : 129180. 2024.
DFT simulation of the Raman spectrum of single layer graphene. Kolev, S K; Trifonov, D V; Aleksandrov, H A; Atanasov, V A; Popov, V N; Milenov, T I; Journal of Physics: Conference Series, 2487: 012003. 2023.
Modification of carbon black by laser irradiation. Milenov, T; Dimov, D; Kostadinov, I; Avdeev, G; Russev, S; Genkov, K; Trifonov, D; Zyapkov, A; Ivanov, K; Kolev, S; others; Journal of Physics: Conference Series, 2487: 012006. 2023.
Study of the Chemical Vapor Deposition of Nano-Sized Carbon Phases on {001} Silicon. Milenov, T; Trifonov, D; Kalchevski, D A; Kolev, S; Avramova, I; Russev, S; Genkov, K; Avdeev, G; Dimov, D; Karaivanova, D M; others; Materials, 16: 7190. 2023.
Modification of micro-crystalline graphite and carbon black by acetone, toluene, and phenol. Milenov, T I; Dimov, D A; Avramova, I A; Kolev, S K; Trifonov, D V; Avdeev, G V; Karashanova, D B; Georgieva, B C; Ivanov, K V; Valcheva, E P; The Journal of Chemical Physics, 158: . 2023.
Dissolution behavior and varied mesoporosity of zeolites by NH4F etching. Qin, Z; You, Z; Bozhilov, K N; Kolev, S K; Yang, W; Shen, Y; Jin, X; Gilson, J-Pierre; Mintova, S; Vayssilov, G N; others; Chemistry--A European Journal, 28: e202104339. 2022.
Structure and phase composition study of thin TiO2: C films deposited by rf magnetron sputtering. Milenov, T; Karaivanova, D; Angelov, O; Terziyska, P; Avdeev, G; Karashanova, D; Georgieva, B; Genkov, K; Dimov, D; Ivanov, K; others; Journal of Physics: Conference Series, 2240: 012009. 2022.
Sodium and Magnesium Ion Location at the Backbone and at the Nucleobase of RNA: Ab Initio Molecular Dynamics in Water Solution. Kolev, S K; St. Petkov, P; Milenov, T I; Vayssilov, G N; ACS omega, 7: 23234--23244. 2022.
Inside Cover: Aluminized Enhanced Blast Explosive Based on Polysiloxane Binder (Prop., Explos., Pyrotech. 2/2022). Kolev, S K; Tsonev, T T; Propellants, Explosives, Pyrotechnics, 47: e202280202. 2022.
Surface chemistry of reduced graphene oxide: H-atom transfer reactions. Kolev, S K; Aleksandrov, H A; Atanasov, V A; Popov, V N; Milenov, T I; Applied Surface Science, 567: 150815. 2021.
Modification of graphene-like, hydrogenated amorphous, hydrogenated tetrahedral amorphous carbon and amorphous carbon thin films by UV-C light. Milenov, T I; Avramova, I A; Dikovska, A; Karaivanova, D; Terziyska, P; Kolev, S K; Karashanova, D; Georgieva, B; Dimov, D; Atanasov, V; others; Surfaces and Interfaces, 24: 101073. 2021.
Nd: YAG laser ablation of micro-crystalline graphite in a water suspension. Milenov, T; Dimov, D; Nikolov, A; Stankova, N; Avramova, I; Avdeev, G; Russev, S; Karashanova, D; Georgieva, B; Kostadinov, I; others; Journal of Physics: Conference Series, 1859: 012006. 2021.
Modification of thin carbon films by UVc light. Milenov, T; Dikovska, A; Avramova, I; Karaivanova, D; Avdeev, G; Terziyska, P; Dimov, D; Karashanova, D; Georgieva, B; Kolev, S; others; Journal of Physics: Conference Series, 1859: 012008. 2021.
Novel Enhanced Blast Explosives; Aluminized Enhanced Blast Explosive Based on Polysiloxane Binder. Kolev, S K; Tsonev, T T; 16th Workshop on Pyrotechnic Combustion Mechanisms; At: Webinar, : . 2021.
Modification of thin carbon films by UVC light. Milenov, T; Avramova, I; Dikovska, A; Avdeev, G; Mladenoff, J; Kolev, S; Valcheva, E; Journal of Physics: Conference Series, 1492: 012030. 2020.
Computational capacity of pyramidal neurons in the cerebral cortex. Georgiev, D D; Kolev, S K; Cohen, E; Glazebrook, J F; Brain Research, 1748: 147069. 2020.
Modification of carbon black by thermal treatment in air-atmosphere. Tzonev, L; Pishinkov, D; Avramova, I; Avdeev, G; Valcheva, E; Mladenoff, J; Genkov, K; Zyapkov, A; Russev, S; Kolev, S; others; AIP Conference Proceedings, 2075: . 2019.
Synthesis of graphene-like phases in a water colloid by laser ablation of graphite. Milenov, T; Nikolov, A; Avdeev, G; Avramova, I; Russev, S; Karashanova, D; Konstadinov, I; Georgieva, B; Mladenoff, J; Balchev, I; others; Materials Science and Engineering: B, 247: 114379. 2019.
Interaction of graphene with out-of-plane aromatic hydrocarbons. Kolev, S K; Aleksandrov, H A; Atanasov, V A; Popov, V N; Milenov, T I; The Journal of Physical Chemistry C, 123: 21448--21456. 2019.
Semiconducting graphene. Kolev, S K; Atanasov, V A; Aleksandrov, H A; Popov, V N; Milenov, T I; Bulgarian Chemical Communications, 51: 552--556. 2019.
Ablation of graphite in water by Nd: YAG laser. Balchev, I; Nikolov, A; Stankova, N; Avramova, I; Valcheva, E; Russev, S; Karashanova, D; Kostadinov, I; Mladenoff, J; Kolev, S; others; 20th International Conference and School on Quantum Electronics: Laser Physics and Applications, 11047: 85--90. 2019.
Ellipsometric study of thin carbon films deposited by pulsed laser deposition. Dikovska, A; Tzonev, L; Avramova, I; Terziiska, P; Bineva, I; Avdeev, G; Valcheva, E; Mladenoff, J; Angelov, O; Kolev, S; others; 20th International Conference and School on Quantum Electronics: Laser Physics and Applications, 11047: 136--141. 2019.
X-ray photoelectron spectroscopy characterization of amorphous and nanosized thin carbon films. Avramova, I; Dikovska, A; Valcheva, E; Terziiska, P; Mladenoff, J; Tzonev, L; Kolev, S; Milenov, T; 20th International Conference and School on Quantum Electronics: Laser Physics and Applications, 11047: 80--84. 2019.
Synthesis of submicron-dispersed carbon phases in water by Nd: YAG laser ablation of graphite. Nikolov, A; Balchev, I; Stankova, N; Avramova, I; Valcheva, E; Russev, S; Karashanova, D; Georgieva, B; Kostadinov, I; Mladenoff, J; others; 20th International Conference and School on Quantum Electronics: Laser Physics and Applications, 11047: 119--124. 2019.
Pulsed laser deposition of thin carbon films on SiO2/Si substrates. Milenov, T; Dikovska, A; Avdeev, G; Avramova, I; Kirilov, K; Karashanova, D; Terziyska, P; Georgieva, B; Arnaudov, B; Kolev, S; others; Applied Surface Science, 480: 323--329. 2019.
Study of the initial stages of deposition of graphene-like films by sublimation of amorphous carbon. Mladenoff, J; Tzonev, L; Kirilov, K; Avramova, I; Avdeev, G; Valcheva, E; Russev, S; Arnaudov, B; Terziiska, P; Kolev, S; others; AIP Conference Proceedings, 2075: . 2019.
Solid state fuel-air explosives. Kolev, S; Tsonev, T; Weinheimer, R; 43rd IPSUSA Seminar, Fort Collins, CO, 8-13 July 2018 At: Fort Collins, CO, : . 2018.
Interaction of Na+, K+, Mg2+ and Ca2+ counter cations with RNA. Kolev, S K; Petkov, S, P; Rangelov, M A; Trifonov, D V; Milenov, T I; Vayssilov, G N; Metallomics, 10: 659--678. 2018.
Band gap modulation of graphene on SiC. Kolev, S; Atanasov, V; Aleksandrov, H; Milenov, T; The European Physical Journal B, 91: 1--7. 2018.
Ab-Initio molecular dynamics simulation of graphene sheet. Kolev, S; Balchev, I; Cvetkov, K; Tinchev, S; Milenov, T; Journal of Physics: Conference Series, 780: 012014. 2017.
Deposition of defected graphene on (001) Si substrates by thermal decomposition of acetone. Milenov, T I; Avramova, I; Valcheva, E; Avdeev, G V; Rusev, S; Kolev, S; Balchev, I; Petrov, I; Pishinkov, D; Popov, V N; Superlattices and Microstructures, 111: 45--56. 2017.
Synthesis and characterization of thin amorphous carbon films doped with nitrogen on (001) Si substrates. Balchev, I; Tzvetkova, K; Kolev, S; Terziiska, P; Szekeres, A; Miloushev, I; Tenev, T; Antonova, K; Peyeva, R; Ivanova, T; others; Journal of Physics: Conference Series, 764: 012013. 2016.
Solid state fuel-air explosives with enhanced power and stability. Kolev, S; Tzonev, T; 46th International Annual Conference of ICT, Karlsruhe, Germany, : . 2015.
Hydrogen atom transfer from water or alcohols activated by presolvated electrons. Iglev, H; Kolev, S K; Rossmadl, H; Petkov, S, P; Vayssilov, G N; The journal of physical chemistry letters, 6: 986--992. 2015.
Ab initio molecular dynamics of Na+ and Mg2+ countercations at the backbone of RNA in water solution. Kolev, S; Petkov, S, P; Rangelov, M; Vayssilov, G N; ACS Chemical Biology, 8: 1576--1589. 2013.
Density functional study of hydrogen bond formation between methanol and organic molecules containing Cl, F, NH2, OH, and COOH functional groups. Kolev, S K; Petkov, S, P; Rangelov, M A; Vayssilov, G N; The Journal of Physical Chemistry A, 115: 14054--14068. 2011.
Study of the Deposition of Nano-Sized Carbon Phases on {001} Silicon. Milenov, T; Trifonov, D; Kolev, S; Avramova, I; Russev, S; Avdeev, G; Valcheva, E; Available at SSRN 4247586, : . .