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SUMMARY:Organic Photovoltaics: Understanding and Controlling the nano-morp
 hology of the active layer
DTSTART:20150309T131500
DTEND:20150309T141500
DTSTAMP:20260610T165827Z
UID:c2b0722e1cc191a266468a72e73b28552cad01b75d0bf5441fbb600f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Dirk Vanderzande\, University of Hasselt\, Institute of 
 Material Research\, Leuven Belgium\nThe field of polymer PhotoVoltaics (PV
 )1 has witnessed a fierce development since the first solar cell of this k
 ind was built in the 90’s. Since then the efficiency has increased to al
 most 11% in a single junction. This progress is a result of a combination 
 of new materials\, insight in working principles and new architectures. Ma
 terial classes will be discussed\, also with examples of work at imo-imome
 c2. Secondly efficiency is critical dependent on achieving an intimately m
 ixed nanomorphology of the donor (conjugated polymer) and acceptor (fuller
 ene) material. This creates a bulk heterojunction which allows for obtaini
 ng high performance. The fysico-chemistry behind these material systems st
 arts to be unraveled3 and is essential in understanding what is going on. 
 Recently we started to study also different interlayers which can lead to 
 improvement of more than 15% of the achieved efficiency4. The last critica
 l parameter is lifetime and understanding aging of devices. Some examples 
 of this work will also be presented\, specifically related to the study of
  the behavior of the nanomorphology under thermal stress.\n1. X. Guo\, A. 
 Facchetti\, and T. J. Marks Chemical Reviews (2014) 114 (18)\, 8943-9021\n
 2. Van Mierloo S\, Hadipour A\, Spijkman M\, Van den Brande\, N\, Ruttens 
 B\, Kesters J\, D' Haen J\, Van Assche G\, de Leeuw DM\, Aernouts T\, Manc
 a J\, Lutsen L\, Vanderzande DJ and Maes W.\, Chemistry of Materials (2012
 ) 24(3) 587-593.\n3. J. Zhao\, A. Swinnen\, G. Van Assche\, J. Manca\, D. 
 Vanderzande and B. Van Mele\, J. Phys. Chem. B\, (2009) 113 (6)\, pp 1587
 –1591\n4. Drijkoningen J.\, Kesters J.\, Vangerven T.\, Lutsen L.\, Vand
 erzande  D.\, Maes W.\, D’Haen J.\, Manca J.\, Org. Electron. (2014) 15
 \, 1282–1289\nBio: PhD at KULeuven in 1986 in Organic synthesis and stud
 ies of mechanisms of thermal induced rearrangement reactions of ortho-quin
 odimethane systems. Permanent position as senior post-doc researcher since
  1987 at the University of Hasselt (Belgium) joining the research group 
 “Organic and Polymeric Chemistry”. Expert domains: Organic Synthesis\,
  Polymer Synthesis\, Advanced Organic and Polymeric Materials for Optical 
 and Electronic applications. In 1992 appointed as assistant professor (doc
 ent) at U Hasselt. In 1995 appointed as associated professor (hoofddocent)
  at UHasselt and from 1999 appointed as full professor at UHasselt. In 201
 0 appointed as director of the Institute of Material Research (imo-imomec)
  at UHasselt. He published around 300 papers and is coauthor on 18 patents
 .
LOCATION:MXF 1 https://plan.epfl.ch/?room==MXF%201
STATUS:CONFIRMED
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