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SUMMARY:IMX seminar: Engineering the Functional Properties of Low Dimensio
 nal Materials at the Nanoscale: from Nano-Phononics to Nano-Photonics\, an
 d beyond
DTSTART:20220228T160000
DTEND:20220228T170000
DTSTAMP:20260406T214443Z
UID:1fca87c23f1c3f5f61efe56b26d75713a13b3df370451d242312179f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Marta De Luca\, Sapienza University of Rome\, Italy\nEngineer
 ing the Functional Properties of Low Dimensional Materials at the Nanoscal
 e: from Nano-Phononics to Nano-Photonics\, and beyond\n\nDr. Marta De Luca
 \nPhysics Department\, Sapienza University of Rome\, Italy\n\nDespite the 
 huge developments of nanofabrication techniques and nanomaterials synthesi
 s\, there are a number of applications (from optoelectronics to energy rec
 overy\, etc.) that require the existence of materials with functional prop
 erties that do not exist yet. This makes it crucial to conceive new approa
 ches to finely control the electronic\, optical\, thermal and structural p
 roperties of materials\, such that they can be tailor-made to a specific a
 pplication. I will discuss how this concept of ‘materials by design’ c
 an used in 1D materials (nanowires) and 2D materials (transition metal dic
 halcogenides)\, allowing to open up new possibilities in two main fields o
 f research: Nano-phononics and Nano-photonics.\nThe recently growing resea
 rch field called ‘Nano-phononics’ deals with the investigation and con
 trol of lattice vibrations in crystals at the nanoscale. The manipulation 
 of phonons is still quite unexplored\, despite it holds the promise of a q
 uantum-mechanical control of heat transport. The quantum-mechanical behavi
 or of phonons may also enable the realization of coherent phonon transport
  via phonon engineering. I will discuss how phononic properties can be eng
 ineered in nanostructures using a new type of superlattices\, in which tun
 ing the period allows tuning the phononic properties à la carte.\nIn the 
 second part of the talk\, I will introduce the open challenges in Nano-pho
 tonics. I will present a new approach for embedding site-controlled quantu
 m dots and quantum rings in semiconductor nanostructures. The pursued rout
 e involves mostly post-growth hydrogen incorporation\, thus allowing to ac
 hieve different materials’ properties on demand with no need to change a
 nd re-optimize growth conditions. The quantum dots can be created directly
  in photonic cavities and provide the ideal single photon sources for Si p
 hotonic integrated circuits. Therefore\, they can become the missing solid
 -state building blocks of novel photonic circuits for quantum communicatio
 n and quantum computation.\n\n\n 
LOCATION:https://epfl.zoom.us/j/65517905628?pwd=blhOMURNK2NLcmEwRDJpVFhWb0
 g4dz09
STATUS:CONFIRMED
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