TY - JOUR
T1 - Random copolymerization realized high efficient polymer solar cells with a record fill factor near 80%
AU - Xie, Qian
AU - Liao, Xunfan
AU - Chen, Lie
AU - Zhang, Ming
AU - Gao, Ke
AU - Huang, Bin
AU - Xu, Haitao
AU - Liu, Feng
AU - Jen, Alex K.-Y.
AU - Chen, Yiwang
PY - 2019/7
Y1 - 2019/7
N2 - In this work, we successfully achieved a record fill factor (FF)of near 80% by using random copolymerization strategy to precisely control the morphology of active layer for polymer solar cells (PSCs). A series of random copolymers were synthesized by random copolymerization of a self-assembly third unit into the multithiophene-based polymer matrix. The random copolymers possess excellent room temperature processing performance due to their relatively weaker self-aggregation properties. More importantly, despite the non-irregular sequence of random copolymers, the planarity of the third unit favored by the S⋅⋅⋅O intramolecular interaction still induced a face-on orientation of the random copolymers and formed a homogeneously fibril-like interpenetrating network structure in the blend films. Ultimately, the random polymer-based device achieved a remarkably high fill factor (FF)near 80% without any treatment, even approaching to the values of the inorganic materials-based solar cells.
AB - In this work, we successfully achieved a record fill factor (FF)of near 80% by using random copolymerization strategy to precisely control the morphology of active layer for polymer solar cells (PSCs). A series of random copolymers were synthesized by random copolymerization of a self-assembly third unit into the multithiophene-based polymer matrix. The random copolymers possess excellent room temperature processing performance due to their relatively weaker self-aggregation properties. More importantly, despite the non-irregular sequence of random copolymers, the planarity of the third unit favored by the S⋅⋅⋅O intramolecular interaction still induced a face-on orientation of the random copolymers and formed a homogeneously fibril-like interpenetrating network structure in the blend films. Ultimately, the random polymer-based device achieved a remarkably high fill factor (FF)near 80% without any treatment, even approaching to the values of the inorganic materials-based solar cells.
KW - Fill factor
KW - Morphology optimization
KW - Polymer solar cells
KW - Random polymerization
KW - Room-temperature processing
UR - http://www.scopus.com/inward/record.url?scp=85064649503&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85064649503&origin=recordpage
U2 - 10.1016/j.nanoen.2019.04.048
DO - 10.1016/j.nanoen.2019.04.048
M3 - RGC 21 - Publication in refereed journal
SN - 2211-2855
VL - 61
SP - 228
EP - 235
JO - Nano Energy
JF - Nano Energy
ER -
