EDUCATION
1996 BSc in Physics, Dept. of Physics, University of Patras.
1998 MSc in Mathematical & Computational Physics, Dept. of Physics, University of Patras.
2003 PhD in Physics, Dept. of Physics, University of Patras
Research field: Materials Science - Computational Physics – Quantum Chemistry: Theoretical study of electronic and optical properties of silicon quantum dots.
ACADEMIC CAREER
2003 - 2008 Post doctoral researcher in the faculty of theoretical and mathematical Physics at the Dept. of Physics, University of Patras.
2009 - 2012 Lecturer (fixed term) at the dept. of Materials Science of the University of Patras.
2010 - 2018 Assistant Professor (fixed term) at the Dept. of Environmental Technology, Technological Institute of Ionian Islands
2018 - Assistant professor at the Dept. Of Materials Science of the University of Patras,
Greece.
2024 - Associate professor at the Dept. Of Materials Science of the University of Patras,
Greece
PUBLICATIONS IN PEER REVIEWED JOURNALS
67 Li, Yaobo; Min, Jingjing ; Jiang, Yifan; Dong, Tieshuan; Xu, Dangdang; Feng, Zhenzhen; Yan, Yuli; Garoufalis, Christos; Baskoutas, Sotirios; Shen, Huaibin; Zeng, Zaiping, "Rational design of tetrahedral derivatives as efficient light emitting materials based on ``super atom" perspective", accepted for publication in Nano Letters
66 F. I. Michos, A. G. Chronis, C. S. Garoufalis, M. M. Sigalas, “Optical properties of Cu, Ag, and Au nanoparticles with different sizes and shapes”, Appl. Res. 2024, e202300101
65 Jingjing Min, Jingwen Zhai, Tieshuan Dong, Dangdang Xu, Yuli Yan, Christos S. Garoufalis, Sotirios Baskoutas, Zaiping Zeng and Yu Jia, ”Design principle for tetrahedral semiconductors and their functional derivatives: cation stabilizing charged cluster network”, Nano Lett. 2023, 23, 4648−4653
64 Jingwen Zhai, Tieshuan Dong, Yamei Zhou, Jingjing Min, Yuli Yan, Christos S. Garoufalis, Sotirios Baskoutas, Dangdang Xu, and Zaiping Zeng, ”Efficient bandedge emission from indirect-bandgap semiconductor quantum dots upon shell engineering”, Nano Lett. 2023, 23, 8, 3239–3244
63 Alexandros Barnasas, Christos S. Garoufalis, Dimitrios I. Anyfantis, Panagiotis Poulopoulos and Sotirios Baskoutas ”On the Quantum Confinement Effects in Ultrathin PdO Films by Experiment and Theory”, Materials 2022, 15(23), 8700
62 Yamei Zhou, Christos S. Garoufalis, Sotirios Baskoutas, Zaiping Zeng, and Yu Jia, ”Twisting Enabled Charge Transfer Excitons in Epitaxially Fused Quantum Dot Molecules”, Nano Lett. 2022, 22, 12, 4912–4918
61 Jingjing Min, Ying Zhang, Yamei Zhou, Dangdang Xu, Christos S. Garoufalis, Zaiping Zeng,Huaibin Shen, Sotirios Baskoutas, Yu Jia, and Zuliang Du, ”Size Engineering of Trap Effects in Oxidized and Hydroxylated ZnSe Quantum Dots”, Nano Lett. 2022, 22, 9, 3604–3611
60 N. Arnaoutakis, A. P. Vouros, M. Milousi, Y. G. Caouris, G. Panaras, A. Tourlidakis, K. Vafiadis, G. Mihalakakou, C. S. Garoufalis, Z. Frontistis, S. Papaefthimiou and M. Souliotis ”Design, Energy, Environmental and Cost Analysis of an Integrated Collector Storage Solar Water Heater Based on Multi- Criteria Methodology”, Energies 2022, 15, 1673 (2022)
59 Christos S. Garoufalis, Zaiping Zeng, Gabriel Bester, Iosif Galanakis, David Hayrapetyan, Emmanuel Paspalakis, and Sotirios Baskoutas, ”Excitons in ZnO Quantum Dots: The Role of Dielectric Confinement”, Journal of Physical Chemistry C 126(5), pp. 2833-2838 (2022)
58 Structural and electronic properties of small perovskite nanoparticles of the form ABX 3 (A = M A, DEA, FA, GA, B = Pb, Sn, X = Cl, Br, I ) C. S. Garoufalis, I. Galanakis, Z. Zeng, D. B. Hayrapetyan and S. Baskoutas, Electron. Mater. 2021, 2(3), 382-393.
57 A. Barnasas, C.S. Garoufalis, D.I. Anyfantis, N. Bouropoulos, P. Poulopoulos, and S. Baskoutas, ”Quantum confinement effects of thin Co3O4 films”, Atoms 2021, 9, 70.
56 Pingping Han, Jingjing Min, Zaiping Zeng, Christos S. Garoufalis, Sotirios Baskoutas, Yu Jia, and Zuliang Du, ”Excitonic characteristics of blue-emitting quantum dot materials in group II-VI using hybrid time-dependent density functional theory”, accepted in Phys.Rev B 2021
55 M.Beaula Ruby Kamalam, S.S.R.Inbanathan, K.Sethuraman, Ahmad Umar, Hassan Algadi, Ahmed A.Ibrahim, Qazi Inamur Rahman, Christos S.Garoufalis, Sotirios Baskoutas, ”Direct sunlight-driven enhanced photocatalytic performance of V2O5 nanorods/ graphene oxide nanocomposites for the degradation of Victoria blue dye”, Environmental Research, 111369, 2021
54 Anurag Jaswal, Manjot Kaur, Surinder Singh, Sushil Kumar Kansal, Ahmad Umar, Christos S. Garoufalis and Sotirios Baskoutas, ”Adsorptive removal of antibiotic ofloxacin in aqueous phase using rGO-MoS2 heterostructure”, Journalof Hazardous Materials Volume 417, 125982, 2021
53 A.G.Chronis, E.Karantagli, F.I.Michos, Christos S.Garoufalis, M.M.Sigalas, ”Exotic nanoparticles of group IV monochalcogenides as anode materials for Li-Ion batteries”, Solid State Communications 332 (2021) 114326
52 A. Chronis, F. I. Michos, C.S. Garoufalis and M. M. Sigalas, ”Structural and Optical properties of Be, Mg and Ca nanorods and nanodisks”, Physical Chemistry Chemical Physics, 2021, 23, 1849 – 1858
51 N. C. Diamantopoulos, A.Barnasas, C. S. Garoufalis, D. I. Anyfantis, N. Bouropoulos, P. Poulopoulos,and S. Baskoutas, ”Band Gap Measurements of Nano-Meter Sized Rutile Thin Films”, Nanomaterials, 10, 2379 (2020).
50 Xiaoyu Ma,Jingjing Min,Zaiping Zeng, Christos S. Garoufalis, Sotirios Baskoutas, Yu Jia, and Zuliang Du, ”Excitons in InP, GaP, GaInP quantum dots: Insights from time-dependent density functional theory”, Phys. Rev. B 100(24),245404 (2019).
49 A. Barnasas, N. Kanistras, A. Ntagkas, D.I. Anyfantis, A. Stamatelatos, V. Kapaklis,N. Bouropoulos, E. Mystiridou, P. Poulopoulos, C.S. Garoufalis and S. Baskoutas, ”Quantum confinement effects of thin ZnO films by experiment and theory”, Physica E: Low-Dimensional Systems and Nanostructures 120,114072 (2020).
48 Garoufalis, C.S., Zeng, Z., Bester, G.,Hayrapetyan, D.B., Baskoutas, S. ”Optical properties of zig-zag and armchair ZnO colloidal nanoribbons”, Chem. Phys. Lett. 732,136659 (2019).
47 E. Karantagli, M. M. Sigalas and C. S. Garoufalis ”Exotic nanoparticles of group IV monochalcogenides”, Solid State Communications 295, pp. 38-42 (2019).
46 A. Koliogiorgos, C. S. Garoufalis, I. Galanakis, and S. Baskoutas ”Electronic and optical properties of ultrasmall ABX 3 (A = Cs, CH 3 N H 3 , B = Ge, Pb, Sn, Ca, Sr, X = Cl, Br, I) perovskite quantum dots”, ACS Omega 2018, 3, 18917−18924.
45 Z. Zeng, C. S. Garoufalis, S. Baskoutas, Yu Jia and G. Bester ”Realization of linearly polarized exciton emission in wurtzite quantum dots”, Phys. Rev. B 98, 235410 (2018).
44 M.Souliotis C. S. Garoufalis ”Optical study of twin-tanked ICS solar heaters combined with asymmetrical CPC type reflectors”, Int J Energy Res. 2018;1–12
43 C. S. Garoufalis, A. Barnasas, A. Stamatelatos, V. Karoutsos, S. Grammatikopoulos, P. Poulopoulos and S. Baskoutas ”A Study of Quantum Confinement Effects in Ultrathin NiO Films Performed by Experiment and Theory”, Materials, 11, 949, 2018.
42 D. A. Badounas, M. Souliotis, and C. S. Garoufalis ”Theoretical Study of Linear and Nonlinear Properties of ZnO/MgO Core/Shell and Inverted Core/Shell Quantum Dots”, Journal of Advanced Physics Vol. 6, pp. 1–5, 2017.
41 Sotirios Baskoutas, Zaiping Zeng, Garoufalis, Christos, and Gabriel Bester, ”Morphology control of exciton fine structure in polar and nonpolar zinc sulfide nanorods” Sci Rep. 2017; 7: 9366.
40 Garoufalis, Christos; Poulopoulos, Panagiotis; Bouropoulos, Nikolaos; Barnasas, Alexandros; Baskoutas, Sotirios, ”Growth and optical properties of Fe2O3 thin films: A study of quantum confinement effects by experiment and theory”, Physica E: Low-dimensional Systems and Nanostructures, 89, (2017), Pages 67-71.
39 Zaiping Zeng, C. S. Garoufalis and S. Baskoutas, “Nonlinear optical absorption in colloidal CdS quantum dots: The role of dielectric environment ”, Journal of Nanoelectronics and Optoelectronics 11 (5), 615-619.
38 C. S. Garoufalis, I. Galanakis, “Multilayer heterostructures of magnetic Heusler and binary compounds from first principles” Journal of Magnetism and Magnetic Materials 401 (2016) 138–143.
37 Zaiping Zeng, Christos S. Garoufalis, Sotirios Baskoutas and Gabriel Bester, “Excitonic optical properties of wurtzite ZnS quantum dots under pressure”, J. Chem. Phys. 142, 114305 (2015).
36 Zaiping Zeng, Alexia Petoni, Christos S. Garoufalis, Sotirios Baskoutas, Gabriel Bester, ”Near-band-edge exciton polarization change in ZnO nanowires”,Phys. Chem. Chem. Phys., 17 (2), 1197 – 1203 (2015).
35 Zaiping Zeng, Christos S. Garoufalis, Sotirios Baskoutas, ”Linear and nonlinear optical susceptibilities in a laterally coupled quantum-dot-quantum-ring system”, Physics Letters A 378, 2713 (2014).
34 Zeng, Z., Garoufalis, C., Baskoutas, S. ”New Insights in the Excitonic Emission of ZnS Colloidal Quantum Dots”, The Journal of Physical Chemistry C 118, 10502 (2014).
33 Zaiping Zeng, George Gorgolis, Christos S. Garoufalis, and Sotirios Baskoutas, ”Competition Effects of Electric and Magnetic Fields on Impurity Binding Energy in a Disc-Shaped Quantum Dot in the Presence of Pressure and Temperature”, Science of Advanced Materials 6 (3), 586-591 (2014).
32 Zaiping Zeng, Christos S. Garoufalis, Andreas F. Terzis, and Sotirios Baskoutas, ”Linear and nonlinear optical properties of ZnO/ZnS and ZnS/ZnO core shell quantum dots: effects of shell thickness, impurity and dielectric environment”, J. Appl. Phys. 114, 023510 (2013).
31 Zaiping Zeng, Christos S. Garoufalis, Sotirios Baskoutas and Gabriel Bester, ” Electronic and optical properties of ZnO quantum dots under hydrostatic pressure”, Phys. Rev. B 87, 125302 (2013).
30 Z. Zeng, E. Paspalakis, C. S. Garoufalis, A. F. Terzis and S. Baskoutas ”Optical Susceptibilities in Singly Charged ZnO Colloidal Quantum Dots Embedded in Different Dielectric Matrices”, J. App. Phys. 113, 054303 (2013).
29 Sotirios Baskoutas, Zaiping Zeng, Christos S. Garoufalis and Gabriel Bester, ”Tuning of the Optical Emission Polarization of ZnO Nanorods by an applied Hydrostatic Pressure”, J. Phys. Chem C, 116 (50) , pp. 26592-26597 (2012).
28 Yashar Azizian-Kalandaragh, Ali Khodayari, Zaiping Zeng, Christos S. Garoufalis, Sotirios Baskoutas, Lionel Cervera Gontard, ”Strong quantum confinement effects in SnS nanocrystals produced by ultrasound-assisted method”, J. Nanoparticle Research, 15:1388 (2013).
27 Zaiping Zeng, Christos S. Garoufalis, Sotirios Baskoutas and Andreas F. Terzis, ”Tuning the Donor Binding Energy in Semiconductor Nanostructures by a Tilted Magnetic Field”, J. App. Phys 112, 064326 (2012).
26 Zaiping Zeng, C. S. Garoufalis, S. Baskoutas and A. F. Terzis ”Stark Effect of Donor Binding Energy in a Self-assembled GaAs/AlGaAs Quantum Dot Subjected to a Tilted Electric Field”, Phys. Lett. A 376 (42-43) , pp. 2712-2716 (2012).
25 Zaiping Zeng, Christos S. Garoufalis, and Sotirios Baskoutas, ”Combination effects of tilted electric and magnetic fields on donor binding energy in a GaAs/AlGaAs cylindrical quantum dot”, J. Phys. D 45, 235102 (2012).
24 S. Baskoutas, C.S. Garoufalis, A.Terzis, “Linear and non linear absorption coefficients and refraction index changes in a single and double inverse parabolic quantum well”, Eur. Phys. J. B 84, 241–247 (2011).
23 P. Poulopoulos, S. Baskoutas, S.D. Pappas, C.S. Garoufalis, S.A. Droulias, A. Zamani and V. Kapaklis, ”Intense quantum confinement effects in Cu 2 O thin films” J. Phys. Chem. C 115 (30), pp 14839–14843 (2011).
22 C S Garoufalis, ”Oxygen terminated Goldberg-type Si quantum dots as candidates for stable Si fullerene-like cages” J. Comp. Th. Nanoscience Vol. 8, 2279–2284, 2011.
21 George D. Panagiotou, Theano Petsi, John Stavropoulos, Christos S. Garoufalis, Kyriakos Bourikas, Christos Kordulis, Alexis Lycourghiotis, “Elucidation of the surface configuration of the Co(II) and Ni(II) aqua complexes and of the Cr(VI), Mo(VI) and W(VI) monomer and polymer oxo-species deposited on the titania surface during impregnation.”, Stud. Surf. Sci. Catal., 175, 117-125 (2010).
20 C. S. Garoufalis and A. D. Zdetsis “Optical properties of ultra small Si nanoparticles: potential role of surface reconstruction and oxygen contamination” J. Math. Chem. (2009) 46:952–961.
19 A. D. Zdetsis, E. N. Koukaras and C. S. Garoufalis, “A parallel study of Ni@Si12 and Cu@Si12 nanoclusters” J Math Chem (2009) 46:971–980.
18 A. D. Zdetsis, C. S. Garoufalis and E. N. Koukaras “Mixed silicon–germanium nanocrystals: a detailed study of Si x Ge 47−x : H”, J. Math. Chem. (2009) 46:942–951.
17 C. S. Garoufalis, “Optical gap and excitation energies of small Ge nanocrystals”, J. Math. Chem. (2009) 46:934–941.
16 K. Bourikas, G Stayropoulos C. S. Garoufalis, T. Petsi C. Kordulis, and A.Lycourghiotis, “Interfacial Impregnation Chemistry in the Synthesis of Nickel Catalysts Supported on Titania”, Chemistry A European Journal, 17, 1201-1213, (2011).
15 E. N. Koukaras, C. S. Garoufalis and A. D. Zdetsis, “Elastic properties of ultra-thin hydrogenated silicon nanowires based on all electron mixed ab initio and semiempirical calculations”, AIP Conf. Proc. 1148, 376 (2009).
14 T. Petsi, G. D. Panagiotou, C. S. Garoufalis, C. Kordulis, P. Stathi, Y. Deligiannakis, A. Lycourghiotis and K. Bourikas, “Interfacial Impregnation Chemistry in the Synthesis of Cobalt supported Titania Catalysts”, Chemistry A European Journal, Volume 15 Issue 47, Pages 13090 - 13104 (2009).
13 A. D. Zdetsis , E. N. Koukaras and C. S. Garoufalis, “Novel effects in finite-length silicon nanowires”, Physica Status Solidi (a), Volume 205 Issue 11, Pages 2625 -2629 (2008)
12 G. D. Panagiotou, T. Petsi, K. Bourikas, C. S. Garoufalis, A. Tsevis, N. Spanos, C. Kordulis, and A. Lycourghiotis, “Mapping the surface (hydr) oxo – groups of titanium oxide and its interface with an aqueous solution: the state of the art and a new approach”, Adv Colloid Interface Sci., 142(1-2):20-42 (2008)
11 E. N. Koukaras, A. D. Zdetsis and C. S. Garoufalis, ”High-stability Finite-Length Silicon Nanowires: A Real Space Theoretical Study”, AIP Conf. Proc. 963, 375 (2007).
10 G. D. Panagiotou, T. Petsi, J. Stavropoulos, K. Bourikas, C. S. Garoufalis, C. Kordulis, A. Lycourghiotis, “Towards the local structure of the Co(II), Ni(II), Cr(VI) and W(VI) ionic species formed upon impregnation on titania”, Stud. Surf. Sci. Catal. 162, 809 (2007)
09 D. Xenides and C. S. Garoufalis, “Electric polarizabilities of CxSi4−x (0 ≤ x ≤ 4) clusters. A conventional and Time-Dependent Density Functional study”, J. Comp. Methods in Science and Engineering, 7 (2007) 287–296.
08 Α. D. Zdetsis , E. N. Koukaras and C. S. Garoufalis, “Structural Properties and Magic Structures in Hydrogenated Finite and Infinite Silicon Nanowires”, App. Phys. Lett. 91, 203112, (2007)
07 E. N. Koukaras, C. S. Garoufalis and A. D. Zdetsis “Structure and properties of the N i@Si 12 cluster from all-electron ab initio calculations”, Phys. Rev. B, 73, 235417 (2006)
06 C. S. Garoufalis and A. D. Zdetsis “High accuracy calculations of the optical gap and absorption spectrum of oxygen contaminated Si nanocrystals” Phys. Chem. Chem Phys. 8 (7), pp. 808-813 (2006)
05 A. D. Zdetsis, C. S. Garoufalis and Stefan Grimme, “ Real Space Ab Initio Calcula-tions of Excitation Energies in Small Silicon Quantum Dots”, NATO Advanced Research Workshop on ”Quantum Dots: Fundamentals, Applications, and Frontiers” Crete 2003, (invited paper) B. A. Joyce et al. (eds.), 317-332, Kluwer- Springer (2005).
04 Zdetsis, A.D., Garoufalis, C.S., Skaperda, M.S., Koukaras, E.N. “Variation and adjustment of the optical gap of small Si nanocrystals by partial substitution of Si with Ge”, (2005) Journal of Physics: Conference Series, 10 1, Pages 101-104.
03 Garoufalis, C.S., Skaperda, M.S., Zdetsis, A.D. “The optical gap of small Ge nanocrystals”, (2005) Journal of Physics: Conf. Series, 10 1, Pages 97-100.
02 Garoufalis, C.S., Zdetsis, A.D. “Real space optical gap calculations in oxygenated Si nanocrystals”, (2005) Journal of Physics: Conf. Series, 10 1, Pages 69-72
01 C. S. Garoufalis, A. D. Zdetsis and S. Grimme “High Level Ab Initio Calculationsof the Optical Gap of Small Silicon Quantum dots” Phys. Rev. Lett. 87, 276402-1 (2001)
CONTACT INFORMATION
Assoc. Prof. Christos S. Garoufalis
Department of Materials Science
University of Patras, Greece
e-mail:
Tel: (+30) 2610 997769
www: https://www.matersci.upatras.gr/en/people/faculty/garoufalis