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DTSTAMP:20250801T231954Z
DESCRIPTION:Conjugated molecules\, oligomers and polymers with intimately i
 nteracting donor-acceptor moieties provide light harvesting and electronic
  energy levels that can be tuned to optimize their utility in electrochrom
 ic\, along with both bulk heterojunction and dye sensitized solar cell app
 lications.  In this presentation\, we will explore the combination and int
 eraction of a breadth of electron rich and electron poor species that ulti
 mately 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 chemi
 stry of dioxythiophene-based polymers has allowed us to complete the color
  palette (yellow\, orange\, red\, purple/magenta/\, blue\, cyan\, green\, 
 and black) of vibrantly colored to highly transmissive switching\, spray-a
 nd blade-coat processed electrochromes of any color\, with donor-acceptor 
 interactions especially enabling materials that are black\, green and cyan
  in color. Donor-Acceptor-Donor (DAD) triads with internally fused DA core
 s provide a means of examining multi-colored chromophores for charge injec
 tion to metal oxide electrodes.  DA polymers synthesized using a broad sel
 ection of co-monomers\, provides donor polymers\, which\, in conjunction w
 ith PCBM\, yield solar cells with power conversion efficiencies of 7-8%\, 
 while providing color control.  Combination of multi-layer solution proces
 sing allows the construction of solar powered electrochromic windows.\n
DTSTART:20150428T170000Z
DTEND:20150428T183000Z
LOCATION:Room 10\, Maass Chemistry Building\, CA\, QC\, Montreal\, H3A 0B8\
 , 801 rue Sherbrooke Ouest
SUMMARY:CSACS Seminar: John Reynolds - Color in Conjugated Polymers: Electr
 ochromism and Photovoltaics
URL:/channels/event/csacs-seminar-john-reynolds-color-
 conjugated-polymers-electrochromism-and-photovoltaics-247965
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