Chem. Commun., 2025, Accepted Manuscript DOI: 10.1039/D5CC04443J, Communication Guowei Zhang, Chen-Sheng Li, Zhiyuan Yong, Fushun Liang, Xintong Zhang In this study, we have proposed a protonic acid doping strategy to modulate the phosphorescence color of organic/polymer host-guest doping system. Specifically, 1-naphthylamine(1-AN)-doped in poly(vinyl alcohol) (PVA) host exhibits yellow...