Premium
A Mechanistic Understanding of Processing Additive‐Induced Efficiency Enhancement in Bulk Heterojunction Organic Solar Cells
Author(s) -
Schmidt Kristin,
Tassone Christopher J.,
Niskala Jeremy R.,
Yiu Alan T.,
Lee Olivia P.,
Weiss Thomas M.,
Wang Cheng,
Fréchet Jean M. J.,
Beaujuge Pierre M.,
Toney Michael F.
Publication year - 2014
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.201303622
Subject(s) - materials science , organic solar cell , energy conversion efficiency , polymer solar cell , active layer , polymer , casting , heterojunction , photoactive layer , layer (electronics) , nanotechnology , chemical engineering , optoelectronics , composite material , thin film transistor , engineering
The addition of processing additives is a widely used approach to increase power conversion efficiencies for many organic solar cells. We present how additives change the polymer conformation in the casting solution leading to a more intermixed phase‐segregated network structure of the active layer which in turn results in a 5‐fold enhancement in efficiency.