The rapid development of nanotechnology has placed higher demand on the synthesis of nanomaterials. Benefiting from its capability to keep nanoparticles away from aggregation, oleic acid (OA) has been routinely...

The applications of upconversion nanoparticles in biodetection, bioimaging, and lighting have greatly fuelled a growing demand for enhancing their brightness. The brightness of upconversion nanoparticles is fundamentally limited by the...

Monodispersed GdF3:Er3+,Yb3+ hollow submicrometer spheres were successfully synthesized by self-assembly of ∼16 nm nanocrystals, and exhibit unique strong emissions spanning from UV to NIR under excitation at 980 nm.