Molecular hole-transporting materials containing a weak electron acceptor core can simultaneously improve the stability and photovoltaic performance of perovskite solar cells.
One-pot synthesized low-cost HTM V1275 exhibits a remarkable performance of 19.3% in PSCs with exceptional stability retaining 125% of the original PCE after 500 h.
A series of azomethine-based HTMs is synthesized using simple condensation chemistry. Their photovoltaic performance and moisture barrier properties are presented.
Diketopyrrolopyrrole (DPP)-based low-cost hole-transporting materials are designed via facile approaches for efficient perovskite solar cells, which endowed impressive PCE over 16% along with ambient stability.