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SUMMARY:Thin-film silicon : from large area electronics to MEMS and Lab on
  Chip applications
DTSTART:20141127T161500
DTEND:20141127T170000
DTSTAMP:20260511T050433Z
UID:55ec825bcb601772cd30ed813f789329c3382dd1c3aed72b7cbfcc1e
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. João Pedro Conde\nDepartment of Bioengineering\, Instit
 uto Superior Tecnico\, University of Lisbon\nAbstract:\nThin-film amorpho
 us and nanocrystalline silicon can be deposited at low temperatures on lar
 ge area substrates such as polymers\, glass and steel. These materials hav
 e found important applications in solar cells\, thin-film transistor (TFT)
  backplanes for flat-panel displays\, and in matrix-addressed photosensor 
 arrays for digital X-rays. In addition\, thin-film silicon devices have be
 en used on flexible and stretchable substrates.\nIn this talk\, I will dis
 cuss two applications of thin-film silicon:\n \n- the first is to fabrica
 te micro and nanoelectromechanical systems (MEMS and NEMS). Thin-film sili
 con brings the performance of crystalline and polycrystalline silicon MEMS
  to applications in which low-temperature processing or large area substra
 tes are required\, such as\, for example for CMOS integration\, or when fl
 exible substrates are needed. I will discuss the electromechanical propert
 ies of the structural materials\, MEMS and NEMS processing\, and bridge an
 d bulk resonator characteristics.\n- the second is the integration of thin
 -film optical sensors in microfluidic devices for biosensing. The aim is t
 o have a “sample-to-answer” system that integrates fluidic handling\, 
 sample preparation\, target detection\, transduction\, and signal processi
 ng. I will discuss our current research on the detection of toxins for foo
 d safety applications\, and of cancer biomarkers.\n \nI will conclude wit
 h two points for discussion: (i) can thin-film silicon MEMS and NEMS be su
 ccessfully integrated in Lab on Chip devices for increased sensitivity? (i
 i) what are potential innovative or disruptive applications of flexible th
 in silicon devices in MEMS and Lab on Chip?\nBio: João Pedro Conde receiv
 ed his Ph.D in Electrical Engineering from Princeton University in 1989. H
 is thesis topic involved the study of the optoelectronic properties of amo
 rphous silicon-silicon germanium multilayers for solar cell applications. 
 Between 1989 and 1990 he was an IBM post-doctoral fellow at Yorktown Heigh
 ts\, where he developed a low temperature process for the deposition of am
 orphous silicon for which a patent was awarded. Since 1990 he has been at
  the Instituto Superior Tecnico (tecnico.ulisboa.pt)\, the engineering sch
 ool of the University of Lisbon where he was part of the founding faculty 
 of the Department of Bioengineering in 2011\, in which he is presently a p
 rofessor and vice-president. He is a co-responsible for the Thin Film MEMS
  and BioMEMS research group of INESC Microsystems and Nanotechnologies (ww
 w.inesc-mn.pt) and the coordinator of the Associated Laboratory IN-Institu
 te of Nanoscience and Nanotechnology (http://www.in-nano.net/). 
LOCATION:CO2 http://plan.epfl.ch/?lang=fr&room=CO2
STATUS:CONFIRMED
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