Tunable upconversion luminescence in self-crystallized Er3+:K(Y1−xYbx)3F10 nano-glass-ceramics

Abstract

K(Y_1−xYb_x)₃F₁₀ (x = 0–1) solid-solution nanocrystals embedded glass ceramics were fabricated via glass self-crystallization. Using Eu³⁺ as a structural probe, the partition of lanthanide activators into the K(Y_1−xYb_x)₃F₁₀ lattice was evidenced. As a consequence, color-tunable upconversion luminescence from green to red was easily realized by modifying Yb³⁺ content in the Er³⁺-doped nano-glass-ceramics.