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Synthesis and Characterization of Squaraine‐Based Photocrosslinkable Resists for Bulk Heterojunction Solar Cells
Author(s) -
Turrisi Riccardo,
Mascheroni Luca,
Sassi Mauro,
Rooney Myles,
Buccheri Nunzio,
Ruffo Riccardo,
Facchetti Antonio,
Beverina Luca
Publication year - 2016
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201600552
Subject(s) - photoactive layer , chemistry , heterojunction , characterization (materials science) , energy conversion efficiency , nanotechnology , organic solar cell , photovoltaic system , commercialization , polymer solar cell , photopolymer , durability , polymer , chemical engineering , optoelectronics , materials science , organic chemistry , polymerization , engineering , ecology , political science , composite material , law , biology
Organic photovoltaic devices (OPVs) are rapidly approaching the commercialization threshold thanks to continuous advances in conversion efficiencies and device durability. Even though the design of high performing active dyes (polymeric and molecular) has dominated the literature, the formulation of strategies improving stability and processability is at least as important as the achievement of record efficiencies. This paper proposes the use of functional photoresists based on acrylic end‐capped squaraines as the photoactive layer of OPV devices. Our results show that the post‐deposition photopolymerization process leads to insoluble photoactive layers that retain sizeable power conversion efficiencies, improved with respect to those of the parent unexposed materials.