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SUMMARY:IEM Distinguished Lecturers Seminar: Metal-Semiconductor-Metal Het
 erostructures for Electrical\, Optical and Plasmonic Applications
DTSTART:20251008T141500
DTEND:20251008T153000
DTSTAMP:20260921T140802Z
UID:da88e922c9fbb87411258dd0d46d84c0e5c9894507f530cc20b4097a
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Alois Lugstein\, Institute for Solid State Electronics\
 , Vienna Institute of Technology\, Vienna (AT)\nPHOTONICS\, MICRO- and BIO
 ENGINEERING SEMINAR\n \nAbstract:\nThis talk will explore the controlled 
 synthesis of monolithic metal-semiconductor-metal nanowire and nanosheet h
 eterostructures\, focusing on Al-Ge/Si-Al systems fabricated via a thermal
 ly initiated exchange reaction. These heterostructures overcome key challe
 nges such as lateral strain relaxation and lattice mismatch\, enabling the
  integration of dissimilar materials previously unattainable in layered st
 ructures. The resulting axial heterostructures feature atomically sharp in
 terfaces and monocrystalline aluminum\, scalable to wafer-level processing
 .\nAluminum’s broad plasmonic response\, CMOS compatibility\, and native
  oxide protection make it ideal for on-chip plasmonic applications. In our
  platform\, Al leads act as both optical and electrical conduits\, enablin
 g efficient surface plasmon polariton (SPP) generation\, guiding\, and hot
  carrier injection in Schottky barrier field-effect transistors. The monol
 ithic architecture ensures improved momentum matching\, boosting plasmon d
 etection efficiency.\nWe also demonstrate electrostatic modulation of Scho
 ttky barriers and the formation of a virtual p-n junction with tunable car
 rier polarity via split-gates. These capabilities support novel CMOS-compa
 tible plasmonic photovoltaics and on-chip photonic-electronic integration.
  Finally\, we show synaptic-like behavior in transistor devices responding
  to plasmonic signals\, pointing to neuromorphic applications in autonomou
 s nanosystems.\n\n\n\nZoom link for attending remotely: https://epfl.zoom
 .us/j/69222849127\n\n\nInstructions for 1st-year Ph.D. students planning t
 o attend this talk\, who are under EDBB’s mandatory seminar attendance r
 ule:\nIN CASE you cannot attend in-person in the room\, please make sure t
 o\n\n	send D. Reinhard a note well ahead of time (ideally before seminar d
 ay)\, informing that you plan to attend the talk online\, and\, during sem
 inar:\n	be signed in on Zoom with a recognizable user name (not any alias 
 making it difficult or impossible to identify you).\n\nStudents attending 
 the seminar in-person should collect a confirmation signature after the ta
 lk - please print your own signature sheet beforehand (69 kB pdf available
  for download here). IMPORTANTLY: hang on to this sheet as no signature re
 cord is being kept by anyone else!
LOCATION:BM 5202 https://plan.epfl.ch/?room==BM%205202 https://epfl.zoom.u
 s/j/69222849127
STATUS:CONFIRMED
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