TY - JOUR
T1 - The role of the axial substituent in subphthalocyanine acceptors for bulk-heterojunction solar cells
AU - Duan, C.
AU - Zango, G.
AU - GarcíaIglesias, M.
AU - Colberts, F.J.M.
AU - Wienk, M.M.
AU - Martínez-Díaz, M.V.
AU - Janssen, R.A.J.
AU - Torres, T.
PY - 2017/1/3
Y1 - 2017/1/3
N2 - Four hexachlorosubphthalocyanines SubPcCl6-X bearing different axial substituents (X) have been synthesized for use as novel electron acceptors in solution-processed bulk-heterojunction organic solar cells. Subphthalocyanines are aromatic chromophoric molecules with cone-shaped structure, good solution processability, intense optical absorption in the visible spectral region, appropriate electron mobilities, and tunable energy levels. Solar cells with subphthalocyanines as the electron acceptor and PTB7-Th as the electron donor exhibit a power conversion efficiency up to 4% and an external quantum efficiency approaching 60% due to significant contributions from both the electron donor and the electron acceptor to the photocurrent, indicating a promising prospect of non-fullerene acceptors based on subphthalocyanines and structurally related systems.
AB - Four hexachlorosubphthalocyanines SubPcCl6-X bearing different axial substituents (X) have been synthesized for use as novel electron acceptors in solution-processed bulk-heterojunction organic solar cells. Subphthalocyanines are aromatic chromophoric molecules with cone-shaped structure, good solution processability, intense optical absorption in the visible spectral region, appropriate electron mobilities, and tunable energy levels. Solar cells with subphthalocyanines as the electron acceptor and PTB7-Th as the electron donor exhibit a power conversion efficiency up to 4% and an external quantum efficiency approaching 60% due to significant contributions from both the electron donor and the electron acceptor to the photocurrent, indicating a promising prospect of non-fullerene acceptors based on subphthalocyanines and structurally related systems.
KW - Bulk heterojunctions
KW - Electron acceptors
KW - Solar cells
KW - Subphthalocyanines
KW - Substitution effects
UR - http://www.scopus.com/inward/record.url?scp=85005877062&partnerID=8YFLogxK
U2 - 10.1002/anie.201608644
DO - 10.1002/anie.201608644
M3 - Article
C2 - 27891720
AN - SCOPUS:85005877062
SN - 1433-7851
VL - 56
SP - 148
EP - 152
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 1
ER -