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BEGIN:VEVENT
UID:8df27e6a-a919-474e-9193-85e7f9fe5895
DTSTAMP:20261028T131804Z
SUMMARY:Optothermal Studies of Heat in van der Waals Materials
DESCRIPTION:<p style="text-align: left\;"><strong>Register&nbsp\;<a href="h
 ttps://forms.office.com/e/Y8RqbLCUvM">HERE</a></strong><a href="https://fo
 rms.office.com/e/Y8RqbLCUvM"><strong>&nbsp\;</strong></a>to attend</p>\n<p
  style="text-align: left\;"><strong>HYBRID DEFENCE by Zoom <a href="https:
 //icn2.zoom.us/j/89379186851?pwd=9baz6HWPetxa78bvqbWA5eqgF9hRq8.1">HERE</a
 ></strong></p>\n<p>PhD Student<strong>:&nbsp\;David Saleta</strong></p>\n<
 p><span style="color: #333333\;">Director:<strong>&nbsp\;Prof. Klaas-Jan T
 ielrooij\,</strong>&nbsp\;<strong><a href="/en/ultrafast-dynamics-in-nanos
 cale-systems-group">Ultrafast Dynamics in Nanoscale Systems</a>&nbsp\;</st
 rong>Senior Group Leader at ICN2</span></p>\n<p style="text-align: justify
 \;"><strong>Short Abstract:&nbsp\;</strong>As (opto)electronic component d
 imensions approach the few-nanometer scale\, thermal management becomes a 
 key challenge due to heat dissipation limits in conventional materials\, l
 ike silicon. Two-dimensional (2D) materials\, with atomic thickness and an
 isotropic properties\, offer a promising route for hybrid integration\, en
 abling new functionalities such as sensing\, photonics\, and neuromorphic 
 computing. This thesis advances the fundamental understanding of phonon he
 at transport in transition metal dichalcogenides through experimental stud
 ies. We develop techniques to transfer and suspend record-large 2D flakes\
 , together with custom-built optical platforms for nanoscale thermal chara
 cterization. Using ultrafast time-domain thermoreflectance\, we probe out-
 of-plane heat transport in MoS₂\, revealing thickness- and temperature-d
 ependent effects potentially linked to phonon and photon coherence. Comple
 mentarily\, Raman thermometry shows that MoSe₂ exhibits weak thickness-d
 ependent in-plane thermal conductivity\, with enhanced environmental coupl
 ing at the monolayer limit. Our findings shine light on phonon-mediated tr
 ansport in 2D materials and support their integration in future (opto)elec
 tronic devices.</p>\n<p>&nbsp\;</p>
DTSTART:20251017T150000
DTEND:20251017T215959
LOCATION:ICN2 Seminar Room\, Campus UAB
CATEGORIES:ICN2 Theses Defence
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