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C 60 :LiF Blocking Layer for Environmentally Stable Bulk Heterojunction Solar Cells
Author(s) -
Gao Dong,
Helander Michael G.,
Wang ZhiBin,
Puzzo Danny P.,
Greiner Mark T.,
Lu ZhengHong
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201002738
Subject(s) - materials science , passivation , nanocomposite , photovoltaics , blocking (statistics) , layer (electronics) , organic solar cell , heterojunction , polymer solar cell , optoelectronics , nanotechnology , energy conversion efficiency , polymer , photovoltaic system , composite material , computer science , electrical engineering , computer network , engineering
A nanocomposite of highly conductive C 60 and insulating LiF (C 60 :LiF) is shown to function as both a highly effective passivation layer and hole blocking layer in polymer bulk heterojunction solar cells. C 60 :LiF composites with up to ≈80% LiF concentration dramatically increase the device stability and power conversion efficiency, enabling a new generation of high‐performance and long lifetime organic photovoltaics on flexible substrates.