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UID:69d97e2bf4027
DTSTAMP:20260410T184811
DTSTART:20110914T113000
SEQUENCE:0
TRANSP:OPAQUE
DTEND:20110914T130000
URL:https://murmitoyen.com/events/vanille/udem/detail/68522
LOCATION:Université de Montréal - Pavillon Roger-Gaudry\, 2900\, chemin d
 e la Tour\, Montréal\, QC\, Canada\, H3T 1J6
SUMMARY:Conférence du professeur William Dichtel (Cornell)
DESCRIPTION:Titre : Bottom-up Synthesis of Structurally Precise 2D and 3D O
 rganic Materials.Cette conférence sera prononcée par le professeur Will
 iam Dichtel du département de chimie de Cornell University. Elle sera don
 née en anglais.Résumé : The continuing development of organic semicond
 uctors will bring about efficient solar cells\, flexible displays\, ubiqu
 itous radio frequency identification tags\, and improved lighting technol
 ogies. Organic materials are inexpensive and offer the promise of tuning d
 evice properties through rational design and chemical synthesis. But simp
 ly controlling their chemical structure is not sufficient\, as molecular 
 or polymer films must achieve long-range pi-orbital overlap to transport 
 charge efficiently. Our research addresses this challenge by investigating
  materials beyond the scope of traditional polymer chemistry that control
  chemical bonding precisely in two or three dimensions. We organize organ
 ic semiconductors into covalent organic frameworks with 2D layered struct
 ures long thought to be ideal for photovoltaic device performance and conv
 ert conducting polymers into narrow strips of carbon semiconductors known
  as graphene nanoribbons.Information supplémentaire
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