Organiser

Panagiotis Grammatikopoulos

Research Focus

Panos' research focuses on the theoretical elucidation of fundamental processes related to nanotechnology such as nanoparticle growth, coalescence, cluster-support interaction, etc., and the effect of structure on optical, chemical, electronic, magnetic, and other properties. For five years he has led the experimental Nanoparticles by Design Unit at OIST (under Prof M Sowwan), utilising cluster beam deposition for the design of tailored nanoparticles and their integration in various nanoarchitectures. Applications include (but are not limited to) gas- and bio-sensors, battery electrodes, and hydrogen storage, yielding a number of publications in esteemed peer-reviewed journals (Communications Materials, Advanced Energy Materials, Advanced Science, Advanced Functional Materials, ACS Nano, Physical Review B, etc.), as well as patented inventions and projects for the commercialisation of the invented technologies.  Also, he is interested in determining the mechanical properties of both nano- and bulk materials in the field of nuclear materials and radiation damage.

Short Bio and Career Summary

Panos was born and raised in Thessaloniki, Greece. He graduated from the Physics Department of the Aristotle University of Thessaloniki in 2000 and the Postgraduate Course "Physics of Materials" in 2002. He did his MSc thesis ("Crystallographic Aspects of Phase Transformations in Titanium", supervised by RC Pond) at the University of Liverpoool, UK, where he returned in 2005 to do his EPSRC funded PhD on "Computer Simulation of Dislocation Interaction with Radiation-Induced Obstacles in Iron", supervised by DJ Bacon. He has worked  as a Research Associate for NCSR Democritos in Athens, Greece, and the University of Greenwich, UK. Since 2011 he is also collaborating with the University of Helsinki as a Visiting Researcher. Since November 2012 he has worked as a Postdoctoral Scholar at the "Nanoparticles by Design" Unit at OIST Graduate University, whereas in March 2016 he officially took over as Unit Leader for the same research Unit.

Since the Unit was disbanded in 2019, he has been working at OIST as an Independent Researcher, collaborating with various groups around the world, and maintaining the Unit's reputation and momentum. In this capacity, he single-handedly organised and hosted the ACBD workshop at OIST in October 2019.

Since 2020 he has held the position of Visiting Assistant Professor at the Particle Technology Laboratory at ETH Zurich, and that of Visiting Researcher at the Center for Atomic and Molecular Technologies at Osaka University, where, as of September 2021, he holds the position of Specially Appointed Assistant Professor.

Panos is a peer reviewer for 38 international journals (51 articles) and 2 national grants. He has given 10 plenary/keynote/invited talks and 23 oral/poster presentations to international conferences and events, whereas he organised/chaired sessions in 7 international conferences.

Publications

Articles published in international journals


42. Nano-vault architecture mitigates stress in silicon-based anodes for lithium-ion batteries

M. Haro, P. Kumar, J. Zhao, P. Koutsogiannis, A.J. Porkovich, Z. Ziadi, T. Bouloumis, V. Singh, E.J. Juarez-Perez, E. Toulkeridou, K. Nordlund, F. Djurabekova, M. Sowwan, P. Grammatikopoulos*

Communications Materials 2 (2021) 16 (10pp) (no IF yet)

41. Aggregation vs. surface segregation: antagonism over the magnetic behavior of NiCr nanoparticles

M. Bohra, V. Alman, A. Showry, V. Singh, R.E. Diaz, M. Sowwan, P. Grammatikopoulos*

ACS Omega 5:51 (2020) 32883-32889 (IF: 3.512)

40. NanoMaterialsCAD: flexible software for the design of nanostructures

G. Nikoulis, P. Grammatikopoulos, S. Steinhauer, J. Kioseoglou

Advanced Theory and Simulations 4:1 (2021) 2000232 (9pp) (IF: 4.004)

39. Atomic-scale structure and chemical sensing application of ultrasmall size-selected Pt nanoparticles supported on SnO2

S. Steinhauer, E. Lackner, F. Sosada-Ludwikowska, V. Singh, J. Krainer, R. Wimmer-Teubenbacher, P. Grammatikopoulos, Anton Köck, M. Sowwan

Materials Advances 1 (2020) 3200-3207 (front cover) (no IF yet)

38. Versatile gold-polymer nanointerfaces probed by GISAXS

M. Bohra, A.S. Bandaru, P. Grammatikopoulos, V. Singh

Materials Today Chemistry 17 (2020) 100297 (IF: 8.301)

37. In situ observation of metal to metal oxide progression: a study of charge transfer phenomenon at Ru-CuO interface

A. Porkovich, Z. Ziadi, P. Kumar, J. Kioseoglou, N. Jian, L. Weng, S. Steinhauer, J. Vernieres, P. Grammatikopoulos, M. Sowwan

ACS Nano 13:11 (2019) 12425-12437 (IF: 15.881)

36. Gas-phase synthesis for label-free biosensors: zinc-oxide nanowires functionalized with gold nanoparticles

E. Danielson, V. Dhamodharan, A.J. Porkovich, P. Kumar, N. Jian, Z. Ziadi, P. Grammatikopoulos, V. Sontakke, Y. Yokobayashi, M. Sowwan

Scientific Reports 9 (2019) 17370 (10pp) (IF: 4.379)

35. Single nanoparticle activities in ensemble: a study on Pd cluster nanoportals for electrochemical oxygen evolution reaction

A. Datta, A. Porkovich, P. Kumar, G. Nikoulis, J. Kioseoglou, T. Sasaki, S. Steinhauer, P. Grammatikopoulos*, M. Sowwan

Journal of Physical Chemistry C 123 (2019) 26124-26135 (IF: 4.126)

34. Site-specific wetting of iron nanocubes by gold atoms in gas-phase synthesis

J. Vernieres, S. Steinhauer, J. Zhao, P. Grammatikopoulos, R. Ferrando, K. Nordlund, F. Djurabekova, M. Sowwan

Advanced Science 6 (2019) 1900447 (8pp) (IF: 16.806)

33. Atomistic modeling of the nucleation and growth of pure and hybrid nanoparticles by cluster beam deposition (invited review)

P. Grammatikopoulos*

Current Opinion in Chemical Engineering 23 (2019) 164-173 (IF: 5.163

32. Computational modeling of nanoparticle coalescence (invited review)

P. Grammatikopoulos, M. Sowwan, J. Kioseoglou

Advanced Theory & Simulations 1 (2019) 1900013 (26pp) (inside front cover) (top-cited article 2019-2020, top-downloaded article 2018-2019) (IF: 4.004)

31. Gas-phase synthesis of trimetallic nanoparticles

J.-G. Mattei, P. Grammatikopoulos*, J. Zhao, V. Singh, J. Vernieres, S. Steinhauer, A.J. Porkovich, E. Danielson, K. Nordlund, F. Djurabekova, M. Sowwan

Chemistry of Materials 31:6 (2019) 2151-2163 (IF: 9.811)

30. Nanoassemblies of ultrasmall clusters with remarkable activity in carbon dioxide conversion to C1 fuels

A. Halder, J. Kioseoglou, B. Yang, K.L. Kolipaka, S. Seifert, J. Ilavsky, M. Pellin, M. Sowwan, P. Grammatikopoulos*, S. Vajda

Nanoscale 11 (2019) 4683-4687 (inside back cover) (IF: 7.790

29. Simulation of the interaction between an edge dislocation and  interstitial dislocation loops in α-iron

P. Grammatikopoulos*, D.J. Bacon, Y.N. Osetsky

Radiation Effects & Defects in Solids 174:3-4 (2019) 329-338 (IF: 0.642)

28. Hydrogen flux through size-selected Pd nanoparticles into underlying Mg nanofilms

S. Kumar, T. Pavloudis, V. Singh, H. Nguyen, S. Steinhauer, C. Pursell, B. Clemens, J. Kioseoglou, P. Grammatikopoulos, M. Sowwan

Advanced Energy Materials 8 (2018) 1701326 (14pp) (inside front cover) (IF: 29.368)

27. Tuning the onset of ferromagnetism in heterogeneous bimetallic nanoparticles by gas phase doping

M. Bohra, P. Grammatikopoulos*, V. Singh, J. Zhao, E. Toulkeridou, S. Steinhauer, J. Kioseoglou, J.-F. Bobo, K. Nordlund, F. Djurabekova, M. Sowwan

Physical Review Materials 1 (2017) 066001 (12pp) (IF: 3.989)

26. Nanoscale heterogeneity of multi-layered Si anodes with embedded nanoparticle scaffolds for Li-ion batteries

M. Haro, V. Singh, S. Steinhauer, E. Toulkeridou, P. Grammatikopoulos, M. Sowwan

Advanced Science 4 (2017) 1700180 (10pp) (inside front cover) (IF: 16.806)

25. Thermal oxidation of size-selected Pd nanoparticles supported on CuO nanowires: the role of the CuO-Pd interface

S. Steinhauer, J. Zhao, V. Singh, T. Pavloudis, J. Kioseoglou, K. Nordlund, F. Djurabekova, P. Grammatikopoulos, M. Sowwan

Chemistry of Materials 29:14 (2017) 6153-6160 (IF: 9.811)

24. In situ chemoresistive sensing in the environmental TEM: probing functional devices and their nanoscale morphology

S. Steinhauer, J. Vernieres, J. Krainer, A. Köck, P. Grammatikopoulos, M. Sowwan

Nanoscale 9 (2017) 7380-7384 (inside back cover) (IF: 7.790)

23. Probing electron beam effects with chemoresistive nanosensors during in situ environmental transmission electron microscopy

S. Steinhauer, Z. Wang, Z. Zhou, J. Krainer, A. Köck, K. Nordlund,  F. Djurabekova, P. Grammatikopoulos, M. Sowwan

Applied Physics Letters 110:9 (2017) 094103 (4pp) (IF: 3. 791)

22. Gas phase synthesis of multifunctional Fe-based nanocubes

J. Vernieres, S. Steinhauer, J. Zhao, A. Chapelle, P. Menini, N. Dufour, R.E. Diaz, K. Nordlund, F. Djurabekova, P. Grammatikopoulos, M. Sowwan

Advanced Functional Materials 27 (2017) 1605328 (12pp) (frontispiece) (IF: 18.808)

21. Kinetic trapping through coalescence and the formation of patterned Ag-Cu nanoparticles

P. Grammatikopoulos*, J. Kioseoglou, A. Galea, J. Vernieres, M. Benelmekki, R.E. Diaz, M. Sowwan

Nanoscale 8 (2016) 9780-9790 (IF: 7.790)

20. Formation mechanism of iron nanocubes in magnetron sputtering inert gas condensation

J. Zhao, E. Baibuz, J. Vernieres, P. Grammatikopoulos, V. Jansson, M. Nagel, S. Steinhauer, M. Sowwan, A. Kuronen, K. Nordlund, F. Djurabekova

ACS Nano 10:4 (2016) 4684-4694 (IF: 15.881)

19. Identifying the multiplicity of crystallographically equivalent variants generated by iterative phase transformations in Ti

P. Grammatikopoulos*, R.C. Pond

Acta Crystallografica B, 72 (2016) 67-74 (IF: 2.266)

18. Control of surface segregation in bimetallic NiCr nanoalloys immersed in Ag matrix

M. Bohra, V. Singh, P. Grammatikopoulos, E. Toulkeridou, R.E. Diaz, J.-F. Bobo, M. Sowwan

Scientific Reports 6 (2016) 19153 (IF: 4.379)

17. Nanoparticle design by gas-phase synthesis

P. Grammatikopoulos, S. Steinhauer, J. Vernieres, V. Singh, M. Sowwan

Advances in Physics: X 1:1 (2016) 81-100 (top-downloaded paper 2016-2017) (IF: 6.917)

16. Surface Segregation in chromium-doped NiCr alloy nanoparticles and its effect on their magnetic behavior

M. Bohra, P. Grammatikopoulos, R.E. Diaz, V. Singh, J. Zhao, J.-F. Bobo, A. Kuronen, F. Djurabekova, K. Nordlund, M. Sowwan

Chemistry of Materials 27 (2015) 3216-3225 (IF: 9.811)

15. Crystallization of silicon nanoclusters with inert gas temperature control

J. Zhao, V. Singh, P. Grammatikopoulos, C. Cassidy, K. Aranishi, M. Sowwan, K. Nordlund, F. Djurabekova

Physical Review B 91 (2015) 035419 (12pp) (IF: 4.036)

14. Simple analytical model of nanocluster coalescence for porous thin film design

P. Grammatikopoulos*, E. Toulkeridou, K. Nordlund, M. Sowwan

Modelling & Simulation in Materials Science & Engineering 23 (2015) 015008 (15pp) (IF: 2.248)

13. On the formation of ternary metallic-dielectric multicore-shell nanoparticles by inert-gas condensation method

M. Benelmekki, J. Vernieres, J.-H. Kim, R.E. Diaz, P. Grammatikopoulos, M. Sowwan

Materials Chemistry & Physics 151 (2015) 275-281 (IF: 4.094)

12. Single-step gas phase synthesis of stable iron aluminide nanoparticles with soft magnetic properties

J. Vernieres, M. Benelmekki, J.-H. Kim, P. Grammatikopoulos, J.-F. Bobo, R.E. Diaz, M. Sowwan

APL Materials 2 (2014) 116105 (6pp) (IF: 5.096)

11. Coalescence-induced crystallisation wave in Pd nanoparticles

P. Grammatikopoulos*, C. Cassidy, V. Singh, M. Sowwan

Scientific Reports 4 (2014) 5779 (9pp) (IF: 4.379)

10. Molecular Dynamics Simulation of Cr-precipitate demixing in FeCr alloys

P. Grammatikopoulos*, K. Nordlund

Radiation Effects & Defects in Solids 169:7 (2014) 646-654 (IF: 0.642)

9. Heterogeneous gas-phase synthesis and molecular dynamics modeling of Janus and core-satellite Si-Ag nanoparticles

V. Singh, C. Cassidy, P. Grammatikopoulos, F. Djurabekova, K. Nordlund, M. Sowwan

Journal of Physical Chemistry C 118:25 (2014) 13869-13875 (IF: 4.126)

8. A facile single-step synthesis of ternary multicore magneto-plasmonic nanoparticles

M. Benelmekki, M. Bohra, J.-H. Kim, R.E. Diaz, J. Vernieres, P. Grammatikopoulos, M. Sowwan

Nanoscale 6 (2014) 3532-3535 (IF: 7.790)

7. Assembly of tantalum porous films with graded oxidation profile from size-selected nanoparticles

V. Singh, P. Grammatikopoulos, C. Cassidy, M. Benelmekki, M. Bohra, Z. Hawash, K.W. Baughman, M. Sowwan

Journal of Nanoparticle Research 16 (2014) 2373 (10pp) (IF: 2.132)

6. Endotaxially stabilized B2-FeSi nanodots in Si(100) via ion beam co-sputtering

C. Cassidy, J. Kioseoglou, V. Singh, P. Grammatikopoulos, C. Lal, M. Sowwan

Applied Physics Letters 104 (2014) 161903(5pp) (IF: 3.791)

5. Coalescence behaviour of amorphous and crystalline tantalum nanoparticles: a molecular dynamics study

P. Grammatikopoulos*, C. Cassidy, V. Singh, M. Benelmekki, M. Sowwan

Journal of Materials Science 49 (2014) 3890-3897 (IF: 3.553)

4. Inoculation of silicon nanoparticles with silver atoms

C. Cassidy, V. Singh, P. Grammatikopoulos, F. Djurabekova, K. Nordlund, M. Sowwan

Scientific Reports 3 (2013) 3083 (7pp) (IF: 4.379)

3. The influence of interaction geometry on the obstacle strength of voids and copper precipitates in iron

P. Grammatikopoulos, D.J. Bacon, Y.N. Osetsky

Modelling & Simulation in Materials Science & Engineering 19 (2011) 015004 (15pp) (IF: 2.248)

2. Geometrical aspects of dislocation-obstacle interaction in iron

P. Grammatikopoulos, D.J. Bacon, Y.N. Osetsky

Advances in Science and Technology 73 (2010) 109-117 (no IF)

1. Simulation of the interaction between an edge dislocation and a  interstitial dislocation loop in α-iron

D. Terentyev, P. Grammatikopoulos, D.J. Bacon, Y.N. Osetsky

Acta Materialia 56 (2008) 5034-5046 (IF: 8.203)

Articles published in conference proceedings


2. Simulation of the interaction between an edge dislocation and an intermediate-size  interstitial dislocation loop in α-iron

P. Grammatikopoulos, D.J. Bacon, Y.N. Osetsky

Proceedings of the XXVI Pan-Hellenic Conference on Solid State Physics and Materials Science, Ioannina, Greece (2010)

1. Hardening by completely and partially absorbed ½  and  dislocation loops reacting with dislocations in α-Fe

D. Terentyev, D.J. Bacon, P. Grammatikopoulos, Y.N. Osetsky

Proceedings of Fourth International Conference on Multiscale Materials Modeling, Tallahassee, Florida, USA (2008)

Book


1. Computational modelling of nanomaterials

P. Grammatikopoulos, editor, Elsevier, Oxford (2020), ISBN: 978-0-12-821495-4

Book chapters


4. Modelling of radiation-induced nanoscale defect production and interactions, chapter 10 of Computational modelling of nanomaterials

P. Grammatikopoulos, Elsevier, Oxford (2020), ISBN: 978-0-12-821495-4

3. Cluster nanoportals for the hydrogenation of underlying nanofilms, chapter 4 of Cluster beam deposition of functional nanomaterials and devices

P. Grammatikopoulos, S. Kumar, Elsevier, Oxford (2020), ISBN: 978-0-08-102515-4

2. Coating, chapter 14 of Gas-phase synthesis of nanoparticles

P. Grammatikopoulos, M. Sowwan, Wiley-VCH, Weinheim (2017), ISBN: 978-3-527-34060-6

1. Nanoparticle formation via magnetron sputtering with inert gas aggregation, chapter 16 of Nanostructured semiconductors: amorphization and thermal properties

P. Grammatikopoulos, M. Sowwan, CRC Press, Boca Raton (2017), ISBN: 978-9-814-74564-2

Patents


2. Nano-vault architecture dissipating stress in Si films for Li-ion batteries

P. Grammatikopoulos, M. Haro, E.J. Juarez-Perez, J. Zhao

World-wide (PCT) provisional patent application 63/075,455 (application date: September 8, 2020)

1. Controllable and reversible pH-responsive rollable 2D nano structures

J.-H. Kim, M. Bohra, V. Singh, C. Cassidy, A. Galea, P. Grammatikopoulos, M. Sowwan

World-wide (PCT) patent application WO/2015/125488 (priority filing date: February 20, 2014)

Media coverage and contribution to popular science publications


13. Article: A new way to shape metal nanoparticles – with a magnetic field, by Karmela Padavic-Calaghan, referring to Magnetic-field directed vapor-phase assembly of low fractal dimension metal nanostructures: experiment and theory

Interviewed for wired.com (2021)

12. Blog Post: What have the Romans ever done for lithium-ion rechargeable batteries, by Panagiotis Grammatikopoulos, referring to Nano-vault architecture mitigates stress in silicon-based anodes for lithium-ion batteries

Contributed at Nature Research Device and Materials Engineering Community forum (2021)

11. Article: Silicon anode structure generates new potential for lithium-ion batteries, by Danielle Ellenby, referring to Nano-vault architecture mitigates stress in silicon-based anodes for lithium-ion batteries

Circulated in popular science websites: EurekAlert, scitechdaily.com, californianewstimes.com, etc. (2021)

10. Article: Livestream available: metal to metal oxide progression, by Christopher Richardson, referring to In situ observation of metal to metal oxide progression: a study of charge transfer phenomenon at Ru-CuO interface

Circulated in popular science websites: Phys.org, EurekAlert, fxncc.com, businesstelegraph.co.uk, etc. (2019)

9. Article: Gold for iron nanocubes, by Johanna Pellinen, referring to Site-specific wetting of iron nanocubes by gold atoms in gas-phase synthesis

Circulated in popular science websites: Phys.org, Physnews, Pythom, ScienceDaily.com, etc. (2019)

8. Article: These labs are remarkably diverse – here’s why they’re winning at science, by Kendall Powell, referring to the overall performance of the Nanoparticles by Design Unit at OIST

Published in Nature (2018)

7. Article: Τα νανοσωματίδια και οι ιδιότητές τους (Nanoparticles and their properties)

Published in Phenomenon, the official journal of the Physics Department, Aristotle University of Thessaloniki, Greece (October 2017)

6. Article: Supercharging silicon batteries, by Wilko Duprez, referring to Nanoscale heterogeneity of multi-layered Si anodes with embedded nanoparticle scaffolds for Li-ion batteries

Circulated in popular science websites: Science Newsline, World Industrial Reporter, Nanowerk, Phys.org, Science Daily, newelectronics, Materialsgate, AZO Nano, Innovations Report, etc. (2017)

5. Articles: Shaping the future, by Sarah Wong, and There is no step two: simultaneous synthesis and application of nanoparticles, by Lisa Smith, referring to Gas phase synthesis of multifunctional Fe-based nanocubes

Circulated in popular science websites: Nano Magazine, Phys.org, Innovations Report, Nanowerk, Terra Daily, AZO Nano, etc. (2017)

4. Article and interview: 世界のモデル 沖縄から生み出す・沖縄科学技術大学院大学 (Model of the world-Okinawa Institute of Science and Technology Graduate University), by Waka Mabuchi

Published at Times Jutaku Shimbun (2016)

3. Article: New ukidama nanoparticle structure revealed, by Rebecca Hofland, referring to Kinetic trapping through coalescence and the formation of patterned Ag-Cu nanoparticles

Circulated in popular science websites: MaterialsToday, MyWebMemo, Asian Scientist, The Medical News, Phys.org, EurekAlert, ScienceDaily.com, etc. (2016)

2. Article: Nanoparticles can grow in cubic shape, referring to Formation mechanism of Fe nanocubes by magnetron sputtering inert gas condensation

Circulated in popular science websites: Phys.org, EurekAlert, ScienceDaily.com, etc. (2016)

1. Article: Simulating the invisible, by Poncie Rutsch, referring to Coalescence-induced crystallisation wave in Pd nanoparticles

Circulated in popular science websites: Phys.org, Nanowerk.com, ScienceDaily.com, scientificcomputing.com, etc. (2014)