TY - JOUR
T1 - Water/Alcohol-Soluble Conjugated Polymers Based on Cyclopentadithiophene and Fluorene as Cathode Interlayers Elevate the Stability and Efficiency in Organic Solar Cells
AU - Nie, Hebing
AU - Huang, Sheng Ci
AU - Lai, Cheng Yao
AU - Busireddy, Manohar Reddy
AU - Su, Yi Jia
AU - Chen, Tsung Wei
AU - Kuo, Pei Jung
AU - Chen, Jiun Tai
AU - Hsu, Chain Shu
N1 - Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.
PY - 2022/8/22
Y1 - 2022/8/22
N2 - In high-performance bulk heterojunction organic solar cells (BHJ OSCs), cathode interlayers (CILs) have been effective in enhancing the device stability and photovoltaic performance by reducing the electron traps of ZnO layers. In this work, three water/alcohol-soluble conjugated polyelectrolytes (CPEs), P2T-CDTNa, PC-CDTNa, and PNDIT-FNa, as cathode interlayers (CILs) are reported. The effect of these three CPEs is validated by using PBDB-T:ITIC and PM6:Y6 as photoactive blends. Compared with ZnO-only devices, all three ZnO/CPE-based devices demonstrate enhanced photovoltaic performances. Especially, the ZnO/P2T-CDTNa-based devices show impressive power conversion efficiencies (PCEs) of 9.93% (VOC= 0.87 V, JSC= 16.56 mA/cm2, and FF = 69.04%) and 16.15% (VOC= 0.84 V, JSC= 27.71 mA/cm2, and FF = 69.60%) for PBDB-T:ITIC and PM6:Y6 BHJ photoactive blends, respectively.
AB - In high-performance bulk heterojunction organic solar cells (BHJ OSCs), cathode interlayers (CILs) have been effective in enhancing the device stability and photovoltaic performance by reducing the electron traps of ZnO layers. In this work, three water/alcohol-soluble conjugated polyelectrolytes (CPEs), P2T-CDTNa, PC-CDTNa, and PNDIT-FNa, as cathode interlayers (CILs) are reported. The effect of these three CPEs is validated by using PBDB-T:ITIC and PM6:Y6 as photoactive blends. Compared with ZnO-only devices, all three ZnO/CPE-based devices demonstrate enhanced photovoltaic performances. Especially, the ZnO/P2T-CDTNa-based devices show impressive power conversion efficiencies (PCEs) of 9.93% (VOC= 0.87 V, JSC= 16.56 mA/cm2, and FF = 69.04%) and 16.15% (VOC= 0.84 V, JSC= 27.71 mA/cm2, and FF = 69.60%) for PBDB-T:ITIC and PM6:Y6 BHJ photoactive blends, respectively.
KW - BHJ OSCs
KW - cathode interfacial layer
KW - conjugated polymer electrolytes
KW - inverted device architecture
KW - non-fullerene acceptors
UR - http://www.scopus.com/inward/record.url?scp=85135947080&partnerID=8YFLogxK
U2 - 10.1021/acsaem.2c01107
DO - 10.1021/acsaem.2c01107
M3 - Article
AN - SCOPUS:85135947080
SN - 2574-0962
VL - 5
SP - 9495
EP - 9502
JO - ACS Applied Energy Materials
JF - ACS Applied Energy Materials
IS - 8
ER -
