Eonji Kim

1 Introduction Conjugated polymers (CPs) offer tunable optoelectronic properties and solution processability, driving advances in light-emitting, photovoltaic, and sensing technologies [1-3]. However, their operational lifetimes remain short; paradoxically, the very π-delocalization that enables function also makes them vulnerable to light and heat, enforcing a long-standing functionality–stability trade-off [4-8].