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Morphology of All‐Solution‐Processed “Bilayer” Organic Solar Cells
Author(s) -
Lee Kwan H.,
Schwenn Paul E.,
Smith Arthur R. G.,
Cavaye Hamish,
Shaw Paul E.,
James Michael,
Krueger Karsten B.,
Gentle Ian R.,
Meredith Paul,
Burn Paul L.
Publication year - 2011
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.201003545
Subject(s) - bilayer , materials science , misnomer , organic solar cell , morphology (biology) , polymer solar cell , neutron reflectometry , solar cell , nanotechnology , optoelectronics , optics , polymer , membrane , neutron scattering , composite material , chemistry , philosophy , biochemistry , theology , physics , small angle neutron scattering , biology , scattering , genetics
We investigate the evolution of the vertical morphology in a solution‐processed P3HT/PCBM “bilayer” organic solar cell using a combination of techniques, including neutron reflectometry. By correlating the device performance with the active layer morphology, we establish that the solution processed bilayer concept is a misnomer and sequential solution processing is an elegant way to make bulk heterojunction organic solar cells with high efficiency.