TY - JOUR
T1 - Simple Is Best
T2 - A p-Phenylene Bridging Methoxydiphenylamine-Substituted Carbazole Hole Transporter for High-Performance Perovskite Solar Cells
AU - Yu, Wei
AU - Yang, Qing
AU - Zhang, Jinhui
AU - Tu, Dandan
AU - Wang, Xuchao
AU - Liu, Xuan
AU - Li, Gang
AU - Guo, Xin
AU - Li, Can
N1 - Funding Information:
This work was financially supported by the National Natural Science Foundation of China (Nos. 61604152 and 91733301), the DICP&QIBEBT UN201705, the DICP ZZBS201813, Liaoning Revitalization Talents Program (XLYC1807231), and the Natural Science Foundation of Liaoning Province of China (20180540124). W.Y. thanks to the support of Hong Kong Scholars Program (XJ2017046). X.G. acknowledges the “Thousand Talents Program for Young Scholars” of China.
Publisher Copyright:
Copyright © 2019 American Chemical Society.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/8/21
Y1 - 2019/8/21
N2 - Methoxydiphenylamine-substituted carbazole (MODPACz) is widely used to construct hole-transporting materials (HTMs) for perovskite solar cells (PSCs), whose performances rely highly on the linking way of the MODPACz units and the simplicity of the π-bridge. In this paper, we report a new HTM, pPh-2MODPACz, using one of the simplest π-bridges p-phenylene to link the MODPACz units. The structural feature endows pPh-2MODPACz with high hole mobility and conductivity, efficient hole extraction ability, and good film-forming property. MAPbI3-based PSCs using doped and undoped pPh-2MODPACz as the HTM offer efficiencies of ∼20% and 16.07%, respectively; both are better than those of the devices with spiro-OMeTAD as the HTM. The device stability of pPh-2MODPACz-based PSCs is also greatly enhanced. This work demonstrates that the simplest p-phenylene bridge for linking MODPACz can derive a promising HTM with a high device performance, providing a distinctive pathway to develop new HTMs.
AB - Methoxydiphenylamine-substituted carbazole (MODPACz) is widely used to construct hole-transporting materials (HTMs) for perovskite solar cells (PSCs), whose performances rely highly on the linking way of the MODPACz units and the simplicity of the π-bridge. In this paper, we report a new HTM, pPh-2MODPACz, using one of the simplest π-bridges p-phenylene to link the MODPACz units. The structural feature endows pPh-2MODPACz with high hole mobility and conductivity, efficient hole extraction ability, and good film-forming property. MAPbI3-based PSCs using doped and undoped pPh-2MODPACz as the HTM offer efficiencies of ∼20% and 16.07%, respectively; both are better than those of the devices with spiro-OMeTAD as the HTM. The device stability of pPh-2MODPACz-based PSCs is also greatly enhanced. This work demonstrates that the simplest p-phenylene bridge for linking MODPACz can derive a promising HTM with a high device performance, providing a distinctive pathway to develop new HTMs.
KW - carbazole
KW - hole-transporting materials
KW - perovskite solar cells
KW - power conversion efficiency
KW - π-bridge
UR - http://www.scopus.com/inward/record.url?scp=85070811893&partnerID=8YFLogxK
U2 - 10.1021/acsami.9b06933
DO - 10.1021/acsami.9b06933
M3 - Journal article
C2 - 31347829
AN - SCOPUS:85070811893
SN - 1944-8244
VL - 11
SP - 30065
EP - 30071
JO - ACS Applied Materials and Interfaces
JF - ACS Applied Materials and Interfaces
IS - 33
ER -