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From Binary to Ternary Solvent: Morphology Fine‐tuning of D/A Blends in PDPP3T‐based Polymer Solar Cells
Author(s) -
Ye Long,
Zhang Shaoqing,
Ma Wei,
Fan Benhu,
Guo Xia,
Huang Ye,
Ade Harald,
Hou Jianhui
Publication year - 2012
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.201202855
Subject(s) - materials science , ternary operation , morphology (biology) , polymer , solvent , chemical engineering , binary number , polymer blend , copolymer , polymer chemistry , polymer science , composite material , organic chemistry , chemistry , genetics , arithmetic , mathematics , computer science , engineering , biology , programming language
For the PDPP3T/PCBM system investigated here, atomic force microscopy, resonant soft X‐ray scattering, and grazing incidence wide angle X‐ray scattering are used as an initial set of tools to determine the surface texture, the bulk compositional morphology, and the crystallization behavior, respectively. We find systematic variations and relate them to device performance. A solvent mixture of DCB/CF/DIO = 76:19:5 (v/v/v) yields a PCE of 6.71%.