Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Abstract Upconversion nanoparticles (UCNPs), incorporating lanthanide (Ln) dopants, can convert low‐energy near‐infrared photons into higher‐energy visible or ultraviolet light through nonlinear energy transfer processes. This distinctive feature has attracted considerable attention in both fundamental research and advanced optoelectronics. Challenges such as low energy‐conversion efficiency nonradiative losses limit the performance of UCNP‐based optoelectronic devices. Recent advancements including optimized core–shell structures, tailed Ln‐doping concentration, surface modifications show significant promise for improving stability. In addition, combining UCNPs with functional materials broaden their applications improve device performance, paving way innovation next‐generation paper first categorizes elaborates on various upconversion mechanisms UCNPs, focusing strategies to boost prolong luminescence. Subsequently, an in‐depth discussion that enhance expand functionality is provided. Furthermore, a wide range devices explored, multiple emerging neuromorphic computing are highlighted. Finally, existing challenges potential solutions involved developing practical considered, well outlook future technologies

Language: Английский