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VERSION:2.0
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METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20260513T185437Z
UID:https://www.mpsd.mpg.de/events/20673/333641
DTSTART:20190924T123000Z
DTEND:20190924T133000Z
CLASS:PUBLIC
CREATED:20190920T093412Z
DESCRIPTION: Since it’s discovery in 2006\, Graphene has known no rivals 
 in terms of number of applications that scientists from all over the globe
  have thought for him\, ranging from spintronics to energy storage\, from 
 transistors to bio-compatible devices. However\, what’s still hindering 
 his big step from laboratories to industry is a cost-effective method to s
 ynthesize large-scale good-quality crystals. Over the past decade\, great 
 improvements have been made in this direction\, and CVD consolidated as an
  excellent candidate for this arduous task. Among other methods\, a novel 
 technique consisting in the synthesis of crystals on transition metals in 
 the liquid phase has proven to overcome many difficulties related to defec
 t-inducing dislocations and low-diffusivity of solid substrates. Neverthel
 ess\, a clear physical insight over the processes involved during graphene
  nucleation and growth is still lacking\, and many of its parameters are d
 erived by post-process analyses\, neglecting those crucial intermediate st
 eps that may conceal key-factors involved in the process. The reason for t
 his trend is that it’s technically difficult to combine different experi
 mental set-ups\, and an ad-hoc design is more than ever needed to conduct 
 a complete and satisfying investigation. This is the reason behind the LMC
 at project\, that developed a reactor suitable both for CVD growth at high
  temperature by hydrocarbon decomposition and for in-situ Raman and optica
 l studies\, in order to follow in real time the growth of graphene flakes 
 and\, at the same time\, determine its physical properties. Additionally\,
  it aims to prove X-ray techniques\, such as GID and XRR\, as an efficient
  tool for high temperature characterization\, a feat never achieved before
 . This is the framework of this thesis work\, which can of course cover it
  only partially and at a rather early stage. The focus has been put on the
  surprising high contrast showed by radiative optical microscopy at high t
 emperatures (∼ 1100 C°) and on the first\, surprising results coming fr
 om X-ray analysis. The former has been proven as an effective tool for fol
 lowing the growth and derive kinematical parameters\, the latter as a pote
 ntial tool for quantitatively estimate its crystal structure at conditions
  prohibitive for standard probes.\nSpeaker: Sebastian Fava
LAST-MODIFIED:20190923T100727Z
LOCATION:CFEL (Bldg. 99)\, Room: Seminar Room V\, O1.109
ORGANIZER;CN=Andrea Cavalleri:mailto:
SUMMARY:MPSD Seminar: Growth Dynamics of Graphene on molten copper
URL;VALUE=URI:https://www.mpsd.mpg.de/events/20673/333641
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