Haijun Fan

TL;DR: ATT-1 Bulk-heterojunction (BHJ) solar cells based on PTB7-Th electron donor and ATT-1 electron acceptor delivered power conversion efficiencies of up to 10.07%, which is among the best performances reported for non-fullerene BHJ solar cells using PTB 7-Th as the electron donor.

TL;DR: In this paper, a ternary solar cell with a power conversion efficiency of over 18% using a largebandgap polymer donor, PM6, and a small-bandgap alloy acceptor containing two structurally similar nonfullerene acceptors (Y6 and AQx-3) is reported.

TL;DR: The importance of modulating the materials miscibility by interfacial-tension-oriented molecular design, which provides a general guideline toward efficient NF-SMSCs, is revealed, which can be achieved by the "isomerization" design on molecular acceptors.

TL;DR: In this paper, a mini review of small molecules with impressive photovoltaic performance especially reported in the last two years was highlighted, and the relationship between molecular structure and device performance was analyzed, which drew some rules for rational molecular design.

TL;DR: In this article, a new dithiophene building block, namely PDTIC-4F, was proposed, which exhibits the strongest electron-donating ability among the widely used dithioxhene building blocks.