High magnetic field and temperature tuning of up-conversion luminescence in Mn2+-doped (Er3+/Yb3+): NaYF4

被引：16

作者：

Wang, Ya-Lan ^{[1
]}

Zhang, Jun-Pei ^{[2
]}

Han, Jun-Bo ^{[2
]}

Hao, Zhong-Hua ^{[1
]}

Wang, Qu-Quan ^{[1
]}

机构：

[1] Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China

[2] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2015年 / 117卷 / 08期

关键词：

ER3+YVO4 SINGLE-CRYSTAL; INFRARED-EMISSION; NANOPARTICLES; NANOCRYSTALS; FLUORESCENCE; ENHANCEMENT; INTENSITIES; SPECTRA; EU3+; BAND;

D O I：

10.1063/1.4908607

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Upconversion luminescence properties of (Yb3+/Er3+): NaYF4 and Mn2+ doped (Yb3+/Er3+): NaYF4 nanocrystals have been investigated under pulsed high magnetic field. The emission ratio of red to green of the bare (Yb3+/Er3+): NaYF4 nanocrystals increases by about 42% as the magnetic field increases from 0 T to 40 T. While for Mn2+ doped (Yb3+/Er3+): NaYF4 nanocrystals, the ratio keeps almost unchanged due to the energy transferring between Mn2+ and Yb3+/Er3+. The effects of temperature on the upconversion emissions are also compared for the two types of nanocrystals. Our observations have prospective applications in biological imaging and magnetic field detection. (C) 2015 AIP Publishing LLC.

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页数：4

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