Jingyu Shang

Tuning Upconversion through Ho3+/Nd3+ Co-sensitized Cascade Energy Transfer

Abstract Lanthanide-doped upconversion nanocrystals (UCNCs) have attracted significant interest, driven by their emerging applications in photonics and anticounterfeiting. However, conventional UCNCs are excited by 808, 980, or 1540 nm, and there remains a gap within the 808–980...