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DTSTAMP:20260412T151314
DTSTART:20170209T103000
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URL:https://murmitoyen.com/events/vanille/udem/detail/746368-nanoparticle-g
 rowth-in-low-temperature-plasmas-applications-growth-and-diagnostic-of-nan
 oparticles-iris-pilch-universite-linkoping-suede
LOCATION:Université de Montréal - Pavillon Claire-McNicoll\, 2900\, chemi
 n de la Tour\, Montréal\, QC\, Canada\, H3T 1J6
SUMMARY:Nanoparticle growth in low-temperature plasmas: applications\, grow
 th and diagnostic of nanoparticles - Iris Pilch\, Université Linköping (
 Suède)
DESCRIPTION:Nanoparticle growth in low-temperature plasmas: applications\, 
 growth and diagnostic of nanoparticles
Iris Pilch\, Department of Physics\
 , Chemistry and Biology
Université Linköping (Suède)
abstract:



Nanop
 ar cles have been found to be of advantage for applica ons like solar cell
 s\, fuel cells\, sensors\, or medical applica ons. In order to tailor the 
 proper es for a speci c applica on\, one o en would like to increase the c
 omplexity of the nanopar cle structure to create nanopar cles with mul fun
 c onal proper es. This can be achieved by synthesizing nanopar cles using 
 mul ple elements and crea ng di erent morphologies like alloys\, core-shel
 l\, mul -shell\, dumbbell-shaped\, or Janus-shaped structures.
Low-tempera
 ture plasmas are in par cular suitable for synthesizing these structures b
 ecause it allows to create structures that are thermodynamically less favo
 rable. The general growth stages of nanopar cles in a plasma are known (nu
 clea on\, coagula on and surface growth) and the par cle growth proceeds m
 ainly through random collisions. Although the individual growth events are
  governed via random collisions\, complex nanopar cles with precise struct
 ures can be synthesized. The central research ques on that has not been an
 swered is: What are the fundamental growth principles of mul component nan
 opar cles leading to complex nanopar cle structures when the growth is pro
 ceeding only via random collisions in the gas phase? The missing link are 
 the unknown interrela onships between the material proper es as boundary c
 ondi on\, the plasma environment as controlling unit and the proper es of 
 nal nanopar cle structures.
In this contribu on\, a brief introduc on to p
 resent research on the synthesis of complex mul - component nanopar cles w
 ill be given. The growth of nanopar cles by collec on of ions and possibil
 i es for controlling the nanopar cle proper es will be described. A centra
 l aim of this talk is to provide an overview of the proposed research prog
 ramme and the strategy for answering the complex research ques on.




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