Color-tunable upconversion luminescence of Yb3+, Er3+, and Tm3+ tri-doped ferroelectric BaTiO3 materials

被引：60

作者：

Zhang, Yang ^{[1
,2
]}

Hao, Jianhua ^{[1
,2
]}

机构：

[1] Hong Kong Polytech Univ, Shenzhen Res Inst, Shenzhen 518057, Peoples R China

[2] Hong Kong Polytech Univ, Dept Appl Phys, Hong Kong, Hong Kong, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2013年 / 113卷 / 18期

基金：

中国国家自然科学基金;

关键词：

NANOCRYSTALS; PHOTOLUMINESCENCE; ENHANCEMENT; EMISSIONS; BLUE;

D O I：

10.1063/1.4805050

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Tunable upconversion (UC) multicolor luminescence is observed from Yb3+, Er3+, and Tm3+ tri-doped ferroelectric BaTiO3 (BTO) materials. By control of dopant concentrations, the lanthanide-doped BTO powders are capable of generating various UC spectra and color tunability. A white-light emission is achieved through an optimal design. Strong UC luminescence is also observed in the lanthanide-doped BTO thin-films grown on Pt/TiO2/SiO2/Si substrate, which can retain well-defined hysteresis loops with a remnant polarization (2P(r)) of 17.8 mu C/cm(2). These findings open the possibility of lanthanide-doped BTO as multifunctional materials, in which both luminescent and ferroelectric properties co-exist. (C) 2013 AIP Publishing LLC.

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页数：4

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