Interlayer for Modified Cathode in Highly Efficient Inverted ITO-Free Organic Solar Cells
Journal article published in 2012 by
Zheng Tang,
L. Mattias Andersson 
,
L. Mattias Andersson,
Zandra George,
Koen Vandewal ,
Kristofer Tvingstedt ,
Patrik Henriksson,
Patrik Heriksson,
Renee Kroon,
Mats R. Andersson,
Olle Inganas
,
L. Mattias Andersson,
Zandra George,
Koen Vandewal ,
Kristofer Tvingstedt ,
Patrik Henriksson,
Patrik Heriksson,
Renee Kroon,
Mats R. Andersson,
Olle Inganas
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Abstract
Inverted polymer solar cells with a bottom metal cathode modified by a conjugated polymer interlayer show considerable improvement of photocurrent and fill factor, which is due to hole blocking at the interlayer, and a modified surface energy which affects the nanostructure in the TQ1/[70]PCBM blend.