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Solar Cells: Triazatruxene‐Diketopyrrolopyrrole Dumbbell‐Shaped Molecules as Photoactive Electron Donor for High‐Efficiency Solution Processed Organic Solar Cells (Adv. Energy Mater. 9/2013)
Author(s) -
Bura Thomas,
Leclerc Nicolas,
Bechara Rony,
Lévêque Patrick,
Heiser Thomas,
Ziessel Raymond
Publication year - 2013
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201370035
Subject(s) - materials science , electron acceptor , dumbbell , organic solar cell , polymer solar cell , energy conversion efficiency , photochemistry , hybrid solar cell , optoelectronics , electron donor , molecule , organic chemistry , chemistry , polymer , catalysis , composite material , medicine , physical therapy
Dumbbell‐shaped molecules can be created by linking functional triazatruxene platforms to highly fluorescent diketopyrrolopyrrole dyes. The association with [6,6]‐phenyl‐C71‐butyric acid methyl ester [PC71BM] electron acceptor produces a self‐supporting association capable of photon absorption over a large window and of charge separation in bulk heterojunction solar cells, giving rise to efficient photo‐to‐current conversion reaching 5.3%. On page 1118 , Nicolas Leclerc, Raymond Ziessel, and co‐workers describe how these green materials are prepared and studied within the framework of organic solar cells.