The editorial board and editorial department of "Science in China: Chemistry" selected 22 excellent papers (to be published in 2021) based on factors such as the academic quality and influence of the articles, including 20 excellent papers in the English publication Science China Chemistry, and the Chinese publication "China Chemistry" Science: Chemistry" 2 excellent papers.

Among them, our group’s article An A-D-A’-D-A type unfused nonfullerene acceptor for organic solar cells with approaching 14% efficiency was selected as an excellent paper in English journals