Prof. Gang LI’s research team published a paper “Rational molecular and device design enables organic solar cells approaching 20% efficiency” on Nature Communications on 28 February 2024, which reported a new efficiency breakthrough of organic solar cells.
Ternary strategy that introduces a guest component into the benchmark host blend is a promising method further to improve the power conversion efficiency of organic solar cells, but how to design a suitable third component remains challenging. Here, the authors systematically investigated the design rules of guest molecules by theoretical simulations and successfully synthesized a new molecule, o-BTP-eC9, contributing to a record organic solar cell with 19.9% (19.5 certified) efficiency.
The paper is available at https://www.nature.com/articles/s41467-024-46022-3
