TY - JOUR
T1 - High-Performance Organic Solar Cells Based on a Non-Fullerene Acceptor with a Spiro Core
AU - Sun, Hua
AU - Sun, Po
AU - Zhang, Cong
AU - Yang, Yingguo
AU - Gao, Xingyu
AU - Chen, Fei
AU - Xu, Zongxiang
AU - Chen, Zhi Kuan
AU - Huang, Wei
N1 - Publisher Copyright:
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2017/4/4
Y1 - 2017/4/4
N2 - Derived from perylenediimide (PDI) building blocks, 3D PDI molecules are considered as a type of promising structure to overcome molecular aggregation, thus improving the performance of organic solar cells. Herein, we report a novel PDI-based derivative, SCPDT-PDI4, with four PDI units connected to a unique spiro core. Attributed to this novel molecular design, SCPDT-PDI4 exhibits a rigid 3D structure, in which the aggregation tendency of PDI chromophores could be effectively attenuated. Additionally, strong intramolecular charge transfer and high charge mobility are achieved due to the well-conjugated structure and electron-rich property of SCPDT. Therefore, fullerene-free organic solar cells based on SCPDT-PDI4 and PTB7-Th achieve a remarkable high efficiency of 7.11 %. Such an excellent result demonstrates the opportunity of SCPDT to be a promising building block for non-fullerene acceptors.
AB - Derived from perylenediimide (PDI) building blocks, 3D PDI molecules are considered as a type of promising structure to overcome molecular aggregation, thus improving the performance of organic solar cells. Herein, we report a novel PDI-based derivative, SCPDT-PDI4, with four PDI units connected to a unique spiro core. Attributed to this novel molecular design, SCPDT-PDI4 exhibits a rigid 3D structure, in which the aggregation tendency of PDI chromophores could be effectively attenuated. Additionally, strong intramolecular charge transfer and high charge mobility are achieved due to the well-conjugated structure and electron-rich property of SCPDT. Therefore, fullerene-free organic solar cells based on SCPDT-PDI4 and PTB7-Th achieve a remarkable high efficiency of 7.11 %. Such an excellent result demonstrates the opportunity of SCPDT to be a promising building block for non-fullerene acceptors.
KW - 3D structure
KW - non-fullerene acceptors
KW - organic solar cells
KW - perylenediimide
KW - power conversion efficiency
UR - http://www.scopus.com/inward/record.url?scp=85012117846&partnerID=8YFLogxK
U2 - 10.1002/asia.201601741
DO - 10.1002/asia.201601741
M3 - Article
C2 - 28124409
AN - SCOPUS:85012117846
SN - 1861-4728
VL - 12
SP - 721
EP - 725
JO - Chemistry - An Asian Journal
JF - Chemistry - An Asian Journal
IS - 7
ER -
