60-Day Stable
Replacing toluene with 1,2,4-trimethylbenzene as the processing solvent for PM6 suppresses aggregation through enhanced solvation, enabling device efficiencies comparable to fresh solutions after 60 days of storage.
Ying, Chen · Zhenhan, Zhao · Zhou, Ke · Ncedo, Jili · Mola, Genene Tessema · Zheng, Hong · Ma, Wei
Journal of Materials Chemistry A 2025
TMB-processed PM6 solution stability up to 60 days
Device performance from aged solutions comparable to fresh solutions