稀土掺杂氧化镥纳米粒子的简便合成与下转换发光

Facile Synthesis and Down-Conversion Emission of RE-Doped Lutetium Oxide Nanoparticles.

作者信息

Xu Zhenhe, Lin Junying, Sun Yaguang, Ding Fu, Fan Hongtao, Shi Shan, Fang Qinghong, Bi Yanfeng, Gao Yu

机构信息

The Key Laboratory of Inorganic Molecule-Based Chemistry of Liaoning Province, College of Applied Chemistry, Shenyang University of Chemical Technology, Shenyang, 110142, China.

College of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, P. R. China.

出版信息

J Nanosci Nanotechnol. 2018 Apr 1;18(4):2850-2855. doi: 10.1166/jnn.2018.14330.

DOI:10.1166/jnn.2018.14330

PMID:29442966

Abstract

Lu2O3:RE3+ (RE3+ = Eu3+, Tb3+, Ho3+) nanoparticles have been successfully synthesized by a facile homogeneous precipitation method with subsequent sintering process. The crystal structure, morphology and luminescence properties of the as-prepared samples have been characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR), thermogravimetric analysis (TGA), photoluminescence (PL) and cathodoluminescence (CL) spectra. Upon ultraviolet (UV) and low-voltage electron beam excitation, Lu2O3:RE3+ (RE3+ = Eu3+, Tb3+, Ho3+) nanoparticles show strong red (Eu3+,5D0 → 7F2), green (Tb3+,5D4 → 7F5), and green (Ho3+,5S2 → 5I8) emissions. They exhibit a good advantage of multicolor emissions in the visible region, and endow these kinds of materials with potential application in many fields, such as light display systems, optoelectronic devices and biological imaging.

摘要

通过简便的均匀沉淀法并随后进行烧结工艺，成功合成了Lu2O3:RE3+（RE3+ = Eu3+、Tb3+、Ho3+）纳米颗粒。采用X射线衍射（XRD）、透射电子显微镜（TEM）、傅里叶变换红外光谱（FT-IR）、热重分析（TGA）、光致发光（PL）和阴极发光（CL）光谱对所制备样品的晶体结构、形貌和发光性能进行了表征。在紫外（UV）和低电压电子束激发下，Lu2O3:RE3+（RE3+ = Eu3+、Tb3+、Ho3+）纳米颗粒呈现出强烈的红色（Eu3+，5D0→7F2）、绿色（Tb3+，5D4→7F5）和绿色（Ho3+，5S2→5I8）发射。它们在可见光区域展现出多色发射的良好优势，并赋予这类材料在许多领域的潜在应用价值, 如光显示系统、光电器件和生物成像。