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CATEGORIES:Department of Materials Science &amp\; Metallurgy 
 Seminar Series
SUMMARY:Synthesis and assembly of atomically thin TMDs for
  energy conversion and energy storage - Dr. Cecili
 a Mattevi\, Department of Materials\, Imperial Col
 lege London
DTSTART;TZID=Europe/London:20191108T150000
DTEND;TZID=Europe/London:20191108T160000
UID:TALK128794AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/128794
DESCRIPTION:Miniaturization over three-dimensions is very attr
 active for future on-chip technologies where devic
 e efficiencies need to be optimized over small are
 as. This is a new challenge\, as device miniaturiz
 ation has been focused to achieve planar-geometrie
 s primarily.\nDirect-ink-writing (or robocasting)\
 , is an additive manufacturing technique that brin
 gs the possibility of fabricating architectures wi
 th programmable design in the three-dimensions (3D
 ) at different length scales.\nIn this seminar\, I
  will talk about our work on 3D printed electrodes
  for microsupercapacitors from water-based 2D atom
 ically thin material inks and our synthesis approa
 ches to the 2D layers. The materials of choice are
  transition metal dichalcogenides (TMDs)\, which a
 re attracting a considerable interest owing to the
 ir multiple functionalities. The inks are composed
  by highly concentrated atomically thin sheets of 
 TMDs\, either exfoliated from bulk powders or obta
 ined via direct synthesis in solution. By tailorin
 g the rheology of our formulated inks\, printabili
 ty has been achieved along with mechanical robustn
 ess of the printed structures. The printed archite
 ctures\, from woodpile to interdigitated electrode
 s\, are extended over a few mm in the three-dimens
 ions and present struts widths as small as 100 μm.
  The microsupercapacitors show leading areal capac
 itance and energy density as compared to planar mi
 crosupercapacitors\, and stability in different el
 ectrolytes
LOCATION:Goldsmiths 1\, Lecture Theatre\, Department of Mat
 erials Science &amp\; Metallurgy
CONTACT:Yonatan Calahorra
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