Colloidal synthesis and characterization of ytterbium-doped YLF nanocrystals

Nucleation and Growth of Bipyramidal Yb:LiYF4 Nanocrystals─Growing Up in a Hot Environment

“…In this work, we focus on the nucleation and growth of ytterbium-doped LiYF 4 (Yb:YLF), as most of the studied lanthanide-doped LiYF 4 (Ln:YLF) NCs contain a significant fraction of Yb 3+ either as the luminescent ion , or as activator for other lanthanide ions. , Yb:YLF itself is an interesting material for a broad range of optical applications. As bulk Yb:YLF, it is used in lasers, − for photon upconversion (when codoped with other lanthanide ions such as Pr 3+ , Ho 3+ , Er 3+ , or Tm 3+ ) − and optical refrigeration. ,− When synthesized as NCs, its applicability in biological ,− and physical studies ,,,,, increases significantly. This becomes especially relevant when NC samples with a monodisperse size distribution ,, and excellent optical properties ( e.g .…”

“…As bulk Yb:YLF, it is used in lasers, 43 − 45 for photon upconversion (when codoped with other lanthanide ions such as Pr 3+ , Ho 3+ , Er 3+ , or Tm 3+ ) 46 − 50 and optical refrigeration. 11 , 51 − 53 When synthesized as NCs, its applicability in biological 9 , 54 − 57 and physical studies 11 , 22 , 40 , 41 , 58 , 59 increases significantly. This becomes especially relevant when NC samples with a monodisperse size distribution 23 , 29 , 60 and excellent optical properties ( e.g .…”