Design of Cr–Ba-doped γ-Ga₂O₃ persistent luminescence nanoparticles for ratiometric temperature sensing and encryption information transfer

Abstract

Design of Cr–Ba-doped γ-Ga2O3 persistent luminescence nanoparticles with Cr ions as the near-infrared emission and Ba ions to improve the emission intensity for ratiometric temperature sensing and encryption information transfer.

Cr-Free Bismuth-Based Persistent Luminescence Nanoparticle Composite for Cancer Theranostics

“…The broad emission from 730 to 850 nm was observed with the peak at 794 nm during the 4 T 1 ( 4 G) → 6 A 1 ( 6 S) transition of Fe 3+ upon the excitation at 310 nm (Figure d) . The emission intensity of BGO/ x Fe 3+ first increased and then reached along with the increased Fe 3+ content, but concentration quenching for the emission was observed at a high Fe 3+ content . The optimal content of x = 1.5% was selected as BGF.…”

Stabilizing cubic γ-Ga2O3:Cr3+ spinel nanocrystals by size confinement into mesoporous silica nanoreactor channels

“…It is worth noting that recently, Zhao et al reported a persistent luminescence behaviour in γ-Ga 2 O 3 :Cr 3+ by co-doping with Ba 2+ . 73…”