Multifunctional luminescent nanomaterials from NaLa(MoO4)2:Eu3+ /Tb3+ with tunable decay lifetimes, emission colors, and enhanced cell viability

Mei Yang, Youlong Liang, Qingyuan Gui, Bingxin Zhao, Dayong Jin, Mimi Lin, Lu Yan, Hongpeng You, Liming Dai*, Yong Liu

*Corresponding author for this work

Research output: Contribution to journalArticle

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Abstract

A facile, but effective, method has been developed for large-scale preparation of NaLa(MoO4)2 nanorods and microflowers co-doped with Eu3+ and Tb3+ ions (abbreviated as: NLM:Ln3+). The as-synthesized nanomaterials possess a pure tetragonal phase with variable morphologies from shuttle-like nanorods to microflowers by controlling the reaction temperature and the amount of ethylene glycol used. Consequently, the resulting nanomaterials exhibit superb luminescent emissions over the visible region from red through yellow to green by simply changing the relative doping ratios of Eu3+ to Tb3+ ions. Biocompatibility study indicates that the addition of NLM:Ln3+ nanomaterials can stimulate the growth of normal human retinal pigment epithelium (ARPE-19) cells. Therefore, the newly-developed NaLa(MoO4)2 nanomaterials hold potentials for a wide range of multifunctional applications, including bioimaging, security protection, optical display, optoelectronics for information storage, and cell stimulation.

Original languageEnglish
Article number11844
Pages (from-to)1-12
Number of pages12
JournalScientific Reports
Volume5
DOIs
Publication statusPublished - 11 Aug 2015

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