RESEARCH INTERESTS

Graphene/2D Materials, Thin Films, CVD, Electrical Characterization, Materials for Energy Applications, DFT

ABOUT/BIOGRAPHY

Dr. Nikolaos Kelaidis is a graduate of the Physics Department of the University of Athens, with a postgraduate degree in Microelectronics (Department of Informatics / NTUA) and a PhD from the Department of Materials Physics of the Aristotle University of Thessaloniki.

His scientific interests are semiconductor physics, the growth and electronic characterization of thin films and 2D materials (graphene, etc.) as well as their theoretical study using computational physics methods. Current research is centered in the areas of atomistic simulation of materials for energy applications (mainly photocatalytic

materials, transparent oxides, MAX phase ceramics) and 2D materials such as graphene and TI/WSM materials. 

Since 2012, he has been a postdoctoral research associate in Greece (NCSR "Democritus", National Research Foundation) and the UK (University of Coventry), working in materials physics and microelectronics. From 2012 to 2016 he worked as a postdoctoral researcher at the Epitaxy and Surface Science Lab (ESSL) of Dr. A. Dimoulas, at the Institute of Nanotechnology of NCSR "Demokritos" in the framework of the European project ERC "Smartgate" and the national project "Top Electronics". This work focused on the energy efficient Field Effect (FET) transistor device architecture and involved the development of thin films of two-dimensional (2D) materials such as graphene and topological insulators by the methods of CVD (chemical vapor deposition) and MBE (molecular beam epitaxy). The structural characterization was done by RHEED, XPS, ARPES, RAMAN, STM methods and was followed by electrical characterization. 

From January 2017 to September 2020, Dr. Nikolaos Kelaidis worked as a postdoctoral research associate at Coventry University (1 / 2017-12 / 2018) and at the National Research Foundation (NHRF), at the Institute of Theoretical and Physical Chemistry (ITHFX) (1/2019 - 9/2020). During this period, the candidate focused on computational science of materials, studying periodic systems with the help of DFT (density functional theory) studying applications in electronic systems such as 2D electronic devices, photovoltaics, batteries and sensors, in close collaboration with various experimental groups.

He has collaborated with various scientific teams at CNR-Italy (IMM, Bologna), at the University of Athens, Patras and Thessaloniki, as well as at the Institute of Nanotechnology of NCSR Demokritos. He has participated in >40 scientific papers and in various national and international conferences.

Since October 2020 he has been working at the ESSL laboratory on the project "2D crystalline thin films with non-trivial topology / 2D-TOP (435)" with the aim of developing and characterizing 2D materials, mainly topological insulators and Weyl semimetals.

https://orcid.org/0000-0002-7116-4876

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https://www.researchgate.net/profile/Nikolaos-Kelaidis , https://scholar.google.com/citations?user=Ik_vchEAAAAJ&hl=en

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PUBLICATIONS

Kelaidis, Nikolaos, Zervos, Matthew, Lathiotakis, Nektarios, Chroneos, Alexander, Tanasua, Eugenia and Vasile, Eugeniu, Vapor-Liquid-Solid Growth and Properties of One Dimensional PbO and PbO/SnO2 Nanowires Materials Advances, Royal Society of Chemistry, 2022 [doi]

Xenogiannopoulou, E., Tsoutsou, D., Tsipas, P., Fragkos, S., Chaitoglou, S., Kelaidis, N. and Dimoulas, A., Ultrathin epitaxial Bi film growth on 2D HfTe2template Nanotechnology, Volume 33, Article Number: 015701, 2022 [doi]

Hadi, MA, Kelaidis, Nikolaos, Naqib, SH, Islam, AKMA, Chroneos, Alexander and Vovk, RV, Insights into the physical properties of a new 211 MAX phase Nb2CuC Journal of Physics and Chemistry of Solids, Pergamon, Volume 149, Pages: 109759, 2021 [doi]

Filippatos, Petros-Panagis, Kelaidis, Nikolaos, Vasilopoulou, Maria, Davazoglou, Dimitris and Chroneos, Alexander, Structural, Electronic, and Optical Properties of Group 6 Doped Anatase TiO2: A Theoretical Approach Applied Sciences, Multidisciplinary Digital Publishing Institute, Volume 11, Pages: 1657, 2021 [doi]

Filippatos, Petros-Panagis, Soultati, Anastasia, Kelaidis, Nikolaos, Petaroudis, Christos, Alivisatou, Anastasia-Antonia, Drivas, Charalampos, Kennou, Stella, Agapaki, Eleni, Charalampidis, Georgios, bin Mohd Yusoff, Abd Rashid and others, Preparation of hydrogen, fluorine and chlorine doped and co-doped titanium dioxide photocatalysts: a theoretical and experimental approach Scientific Reports, Nature Publishing Group, Volume 11, Pages: 1–12, 2021 [doi]

Filippatos, Petros-Panagis, Kelaidis, Nikolaos, Vasilopoulou, Maria, Davazoglou, Dimitris and Chroneos, Alexander, Impact of boron and indium doping on the structural, electronic and optical properties of SnO2 Scientific Reports, Nature Publishing Group, Volume 11, Pages: 1–11, 2021 [doi]

Filippatos, Petros-Panagis, Kelaidis, Nikolaos, Vasilopoulou, Maria, Davazoglou, Dimitris and Chroneos, Alexander, Defect processes in halogen doped SnO2 Applied Sciences, Multidisciplinary Digital Publishing Institute, Volume 11, Pages: 551, 2021 [doi]

Kelaidis, Nikolaos, Bousiadi, Sofia, Zervos, Matthew, Chroneos, Alexander and Lathiotakis, NN, Electronic properties of the Sn 1- x Pb x O alloy and band alignment of the SnO/PbO system: a DFT study Scientific Reports, Nature Publishing Group, Volume 10, Pages: 1–8, 2020 [doi]

Filippatos, Petros-Panagis, Kelaidis, Nikolaos, Vasilopoulou, Maria, Davazoglou, Dimitris and Chroneos, Alexander, Atomic structure and electronic properties of hydrogenated X (= C, Si, Ge, and Sn) doped TiO2: A theoretical perspective AIP Advances, AIP Publishing LLC, Volume 10, Pages: 115316, 2020 [doi]

Zervos, Matthew, Lathiotakis, Nektarios, Kelaidis, Nikolaos, Othonos, Andreas, Tanasa, Eugenia and Vasile, Eugeniu, Epitaxial highly ordered Sb: SnO 2 nanowires grown by the vapor liquid solid mechanism on m-, r-and a-Al 2 O 3 Nanoscale Advances, Royal Society of Chemistry, Volume 1, Pages: 1980–1990, 2019 [doi]

Kuganathan, Navaratnarajah, Kordatos, Apostolos, Kelaidis, Nikolaos and Chroneos, Alexander, Defects, lithium mobility and tetravalent dopants in the Li 3 NbO 4 cathode material Scientific reports, Nature Publishing Group, Volume 9, Pages: 1–8, 2019 [doi]

Kuganathan, Navaratnarajah, Kelaidis, Nikolaos and Chroneos, Alexander, Defect Chemistry, Sodium Diffusion and Doping Behaviour in NaFeO2 Polymorphs as Cathode Materials for Na-Ion Batteries: A Computational Study Materials, Multidisciplinary Digital Publishing Institute, Volume 12, Pages: 3243, 2019 [doi]

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