All-polymer solar cells based on wide bandgap polymerized non-fused electron acceptors for indoor photovoltaics

Abstract

Wide bandgap polymerized non-fused electron acceptors have been applied into indoor photovoltaics, yielding ~1.0 V open-circuit voltage and >14% power conversion efficiency.

The revival of 4H-cyclopenta[2,1-b:3,4-b′]dithiophene (CPDT) driven by low-cost and high-performance nonfused-ring electron acceptors

“…Finally, CPDT -based NFREAs, with tunable optical and electrochemical properties, demonstrate great potential for diverse applications such as high-performance indoor OSCs and organic photodetectors, thereby meriting further investigation and exploration. 203–206 Overall, we can expect a fast development of CPDT -based photovoltaic materials, which have the potential to further enhance the photovoltaic performance and contribute to the commercial application of OSCs.…”

Optimizing Transport Carrier Free All-Polymer Solar Cells for Indoor Applications: TCAD Simulation under White LED Illumination

“…Additionally, the device showed superior thermal stability. In [19], the authors incorporated non-fused electron acceptors in APSCs, with the structure ITO/PEDOT:PSS/absorber/PFN-Br/Ag, for application under indoor environments. A high V OC of nearly 1.0 V was achieved, accompanied by a PCE above 14% under 1500 lux and 3000 K. Moreover, an APSC module has been fabricated, with an active area of 10 cm 2 , that employs a blend of CD1 as a polymer donor CD1 and PBN-21 as a polymer acceptor.…”