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DTSTART:20150429T110000
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URL:https://murmitoyen.com/events/vanille/udem/detail/481157
LOCATION:Polytechnique Montréal - Pavillon J.-Armand-Bombardier\, 5155\, a
 venue Decelles\, Montréal\, QC\, Canada\, H3T 2B1
SUMMARY:Conférence CRMAA avec le Professeur John Reynolds (Georgia Tech)
DESCRIPTION:Titre : Color in Conjugated Polymers: Electrochromism and Photo
 voltaics.Endroit : Pavillon J.A.-Bombardier\, salle 1035 à 11 hHôte : W
 illiam SkeneLa conférence sera prononcée par le professeur John Reynolds
 \, des écoles de chimie et de biochimie ainsi que de science des matéria
 ux et de génie au sein du Georgia Institute of Technology. Elle est comma
 nditée par le Centre de recherche sur les materiaux auto-assemblés (CRMA
 A) et sera donnée en anglais.Résumé : Conjugated molecules\, oligomers 
 and polymers with intimately interacting donor-acceptor moieties provide l
 ight harvesting and electronic energy levels that can be tuned to optimize
  their utility in electrochromic\, along with both bulk heterojunction and
  dye sensitized solar cell applications. In this presentation\, we will ex
 plore the combination and interaction of a breadth of electron rich and el
 ectron poor species that ultimately allow us to prepare polymer films with
  band gaps that range from 4 eV in the UV to near 0.5 eV in the infrared. 
 The flexible synthetic chemistry of dioxythiophene-based polymers has allo
 wed us to complete the color palette (yellow\, orange\, red\, purple/magen
 ta/\, blue\, cyan\, green\, and black) of vibrantly colored to highly tran
 smissive switching\, spray- and blade-coat processed electrochromes of any
  color\, with donor-acceptor interactions especially enabling materials th
 at are black\, green and cyan in color. Donor-Acceptor-Donor (DAD) triads 
 with internally fused DA cores provide a means of examining multi-colored 
 chromophores for charge injection to metal oxide electrodes. DA polymers s
 ynthesized using a broad selection of co-monomers\, provides donor polymer
 s\, which\, in conjunction with PCBM\, yield solar cells with power conver
 sion efficiencies of 7-8%\, while providing color control. Combination of 
 multi-layer solution processing allows the construction of solar powered e
 lectrochromic windows.Information supplémentaireAnnonce PDF de la confér
 ence
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