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SUMMARY:Charge generation in organic solar cell blends
DTSTART:20170420T160000
DTEND:20170420T170000
DTSTAMP:20260509T100858Z
UID:bd485b07ad809d298600dc1cf40b652ece3667781a8a793b11b3b364
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Natalie Banerji\nChemistry Department\, Faculty of Scien
 ce\,\nUniversity of Fribourg\nChE-602 - Recent Events in Energy seminar se
 ries\n\nPolymer:fullerene blends have attracted attention as efficient org
 anic photovoltaic (OPV) materials promising over 10% power conversion effi
 ciency. In this talk\, I present results obtained with a variety of ultraf
 ast spectroscopic techniques (transient absorption\, terahertz and electro
 -modulated differential absorption spectroscopy) that have allowed to corr
 elate the mechanism of charge generation in donor:acceptor blends to the p
 hase morphology\, i.e. to the arrangement of the donor and acceptor into p
 hase-pure (neat) and intermixed domains. In particular\, I describe how va
 rying the miscibility between the components (by changing the fullerene ac
 ceptor\, or using ternary blends containing two different fullerenes)\, an
 d replacing the polymer with the corresponding dimer\, affect the phase mo
 rphology and charge generation.
LOCATION:Zeuzier https://www.google.com/maps/place/EPFL+Valais+Wallis/?ref
 =zeuzier
STATUS:CONFIRMED
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