Dual-functional β-NaYF4: Yb3+, Er3+ nanoparticles for bioimaging and temperature sensing

被引：29

作者：

Huo, Lili ^{[1
]}

Zhou, Jiajia ^{[1
]}

Wu, Ruozhen ^{[1
]}

Ren, Junfei ^{[1
]}

Zhang, Shengjun ^{[1
]}

Zhang, Junjie ^{[1
]}

Xu, Shiqing ^{[1
]}

机构：

[1] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Peoples R China

来源：

OPTICAL MATERIALS EXPRESS | 2016年 / 6卷 / 04期

基金：

中国国家自然科学基金;

关键词：

UP-CONVERSION LUMINESCENCE; QUANTUM DOTS; ER3+-YB3+; PHOSPHOR; NANOMATERIALS; NANOCRYSTALS; DISPLAY; SENSORS;

D O I：

10.1364/OME.6.001056

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hexagonal-phase NaYF4: Yb3+, Er3+ nanoparticles (NPs) have been widely used as the most efficient NIR-to-visible upconversion (UC) luminescent and probe in bioscience. Here, we exploited not only the function of dual-mode emission of beta-NaYF4: Yb3+, Er3+ NPs in the near infrared (NIR) and visible regions with single wavelength excitation at 980 nm, but also the function of physiological temperature sensing with the luminescence of Er3+ in the visible region. The structural and optical characteristics of beta-NaYF4: Yb3+, Er3+ NPs were obtained using X-ray diffraction (XRD), scanning electron microscopy (SEM), and fluorescence spectral measurements, respectively; the mechanism for the energy transfer has been suggested with emphasis on the optimized Er/Yb concentration for most efficient UC. Due to the UC and down-shifting NIR properties, we achieved the dual-functional nanoparticles with potential application in physiological range temperature sensing and bioimaging simultaneously. (C) 2016 Optical Society of America

引用

页码：1056 / 1064

页数：9

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