凯发_Costas Galiotis

Speaker-Costas Galiotis

Costas Galiotis
FORTH (FORTH/ ICE-HT)

He is a Professor at the Chemical EngineeringDepartment of University of Patras and Collaborating Faculty Member of theInstitute of Chemical Engineering Sciences of FORTH (FORTH/ ICE-HT). He graduated from the University of Athens in1977 and received his PhD from the University of London (Queen Mary College) in1981. After a period as a post-doctoralfellow (1981-85), he was elected in 1985 as a Tenured Lecturer and then aReader at Queen Mary. He moved to Greece in 1997 as a Research Director ofFORTH/ ICE-HT and was appointed as a Professor at the University of Patras in2002. From 2007 till 2013 he acted asthe Executive Director of ICE-HT and member of the Board of Directors ofFORTH. Since 2017 he serves as theDirector of the Physical Sciences programme of the HFRI (Greece) and in theExecutive Board of the European Graphene Flagship. He has served in all themajor Research Panels of CEC (ERC, INFRAIA, Teaming, Marie-Curie, SME etc) andhas also acted as Expert, Vice-Chair and Independent Observer in CEC evaluationcommittees. He was the Head of the National (Greek) Representation in the NMBP(Nano-Materials-Bio-Production) Committee of Horizon 2020 (2011-2018).

His current research interests are in the areas of 2Dmaterial processing, nano and micro-mechanics, composites and also preventiveconservation of art objects. He has published approx. 450 journal papers, bookchapters, reviews, proceedings etc which have been cited over 24000 times(GS). He is currently theEditor-in-Chief ‘Graphene and 2D Materials Technology’ (Springer-Nature) andserves in the Editorial Board Member of ‘Scientific Reports’ (Springer-Nature)and of ‘International Materials Reviews’ (Taylor & Francis). He has been afounding member of the Graphene Flagship and leader of its Graphene Compositeswork package. He has been the Chairman and Organiser of a number ofInternational Conferences such as ECCM-11 (2004), NANOCONF (2007), GrapHEL(2012), Industrial Technologies (2014) and Graphene Week 2017. He is a fellow of the Academia Europaea, theEuropean Academy of Sciences and of the Institute of Materials, Minerals andMining (IOM3). In 2019 he received the‘Aristeion in the Physical Sciences’ which is the highest scientific awardconferred every 4 years by the Academy of Athens

Title：Synthesis of 2DM via CVD: current technologies and future trends

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Abstract

2D materials (2DMs) have been established asunique and attractive alternatives to replace current technological materialsin a number of applications. The synthesis of large, defect-freetwo-dimensional materials (2DMs) such as graphene is a major challenge towardindustrial applications Chemical vapour deposition (CVD), is undoubtedly themost renowned technique for thin film synthesis and meets all requirements forautomated largescale production of 2DMs. The growth process is rather complex,as it involves multiple reactions such as hydrocarbon decomposition, carbonadsorption and subsequently diffusion on the catalytic substrate, thegeneration of the nucleation point and finally the growing. Currently most CVDmethods employ solid metal catalysts (SMCat) for the growth of 2DMs. However,their use has been found to induce structural defects such as wrinkles,fissures, and grain boundaries among others. In contrast to a solid catalyticsubstrate, graphene growing on Liquid Metal Catalysts (LMCat) might be asolution for the production of defect-free single graphene domain at highsynthesis speeds due to the enhanced atomic mobility, homogeneity, and fluidityof a LMCat. Real-time monitoring of such a complex process is of paramountimportance for the control of graphene growth and the understanding of growingkinetics. Nevertheless, the lack of in situ techniques enabling directobservation of the growth process has limited our understanding of the processdynamics and primarily led to empirical growth recipes. Herein, we report onthe development of a real time monitoring of graphene growth via in situreflectometer for the case of graphene grown on solid and via in situ opticalmicroscopy, Raman spectroscopy and X-Ray diffraction for graphene grown onliquid metal substrates. The quality of LMCat graphene has been alsoinvestigated conforming its superior properties in terms of electrical andmechanical response. Finally, a novel platform for the direct separation of Grfrom the liquid Cu substrate will be presented aiming towards the synthesis ofwafer scale single crystal Gr of pristine quality.