Persistent luminescence found in Mg²⁺ and Pr³⁺ co-doped LiNbO₃ single crystal

Abstract

Persistent luminescence was found in Mg2+ and Pr3+ co-doped congruent LiNbO3 single crystal wherein the Mg2+ plays a key role.

Ni2+-Doped Yttrium Aluminum Gallium Garnet Phosphors: Bandgap Engineering for Broad-Band Wavelength-Tunable Shortwave-Infrared Long-Persistent Luminescence and Photochromism

“…Figure S1B presents the reciprocal SWIR persistent luminescence intensity ( I –1 ) versus decay time ( t ). The I –1 – t result in the initial decay stage can be well fitted using a linear equation I –1 = 3.05 × 10 –7 t + 2.6 × 10 –4 , indicating a tunneling process in the initially fast decay process. − …”

Recent progress on lanthanide-based long persistent phosphors: an overview

“…A novel red lithium niobate phosphor, LiNbO 3 :Mg 2+ ,Pr 3+ , was reported and the niobate matrix offered optical, electronic and stability advantages. 57 Perovskite-like single crystals of LiNbO 3 :Mg 2+ ,Pr 3+ were synthesized via the solid-state method, followed by the Czochralski method. The crystal structure of the formed LiNbO 3 perovskite is elucidated in Fig.…”

High‐temperature persistent luminescence and visual dual‐emitting optical temperature sensing in self‐activated CaNb2O6: Tb3+ phosphor

“…Sensitivity is the key parameter of temperature sensors. The absolute sensitivity S a and relative sensitivity S r can be calculated and expressed as follows in equations (8) and (9).…”

“…Niobates have the advantages of good electro‐optic photo elasticity and chemical stability as well as easy synthesis 7 . Moreover, niobates have the potential for PersL properties and the PersL properties of rare earth ion‐doped phosphors such as LiNbO 3 : Mg 2+ , Pr 3+ , 8 NaNbO 3 : Pr 3+ 9 . Therefore, we choose the CaNb 2 O 6 (CNO) host as the research object, Tb 3+ ion as doped ions can form luminescent centers due to 5 d 4 ‐ 7 f j transitions, and it has been widely used as the green luminescence activator of luminescent materials.…”