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SUMMARY:Organic Photovoltaics: Lessons Taught by Ultrafast Spectroscopy  
DTSTART:20140605T163000
DTEND:20140605T173000
DTSTAMP:20260428T184938Z
UID:5902759df017f2ceba8ab68e5598b4589f0df4519fb6cc766bfad74f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Maxim S. Pchenitchnikov\nZernike Institute for Advanced Mat
 erials\, University of Groningen\, the Netherlands\nBulk-heterojunction or
 ganic solar cells attract much interest as one of renewable energy source.
  To gain insights on how to design more efficient solar cells\, fundamenta
 l understanding is required of the crucial first steps in photon-to-voltag
 e conversion.\nIn this presentation\, I will demonstrate how ultrafast spe
 ctroscopy can be used to obtain important information on initial charge ge
 neration and separation in organic photovoltaics blends. I will focus on t
 he following two issues:\n(i) the interplay between intra- and inter-molec
 ular electron transfer followed photon absorption\, and\n(ii) the hole tra
 nsfer process from fullerene molecules to the polymers.\nWhile understandi
 ng of the former processes provides important feedback to chemical synthes
 is\, the latter allows for morphology characterization “on-the-fly” in
  functional devices.
LOCATION:CH G1 495 https://plan.epfl.ch/?room==CH%20G1%20495
STATUS:CONFIRMED
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