Abstract
A series of ScNb2VO9:xEu3+ (x = 0.5, 1, 2, 5, 20, 30, 40, and 45 mol%) red-emitting phosphors was achieved by the high-temperature solid-state reaction. The ScNb2VO9:20 mol%Eu3+ phosphor exhibits a red emission around 618 nm (5D0→7F3 transition) under 324 nm excitation. The phosphor presents the wide excitation with charge transfer band (CTB) from O2−-V5+ and O2−-Eu3+ transitions between 225 and 360 nm. The prepared ScNb2VO9:20 mol%Eu3+ phosphor shows high thermal stability, high moisture resistance stability, and high UV radiation stability. The features of the latent fingerprint (LFP) created by ScNb2VO9:Eu3+@oleylamine can be clearly reflected on different surfaces based on the powder dusting method. The experiment results demonstrate the superiority of the ScNb2VO9:Eu3+ phosphor in the field of LFP development.
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