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Conjugated Polymeric Zwitterions as Efficient Interlayers in Organic Solar Cells
Author(s) -
Liu Feng,
Page Zachariah A.,
Duzhko Volodimyr V.,
Russell Thomas P.,
Emrick Todd
Publication year - 2013
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.201302477
Subject(s) - materials science , conjugated system , organic solar cell , work function , polymer solar cell , cathode , energy conversion efficiency , chemical engineering , nanotechnology , polymer , optoelectronics , composite material , chemistry , layer (electronics) , engineering
Conjugated polymeric zwitterions, when utilized as interlayer materials in bulk heterojunction organic solar cells, lead to significantly enhanced power conversion efficiencies. The electrostatic model of self‐aligning dipolar side groups in the vicinity of the metal surface rationalizes the effects of reduced cathode work function, a key factor behind the observed enhanced efficiency.