Title :
Hydrothermal Synthesis and Optical Properties of Single-Crystal EuPO4 Nanowires
Author :
Chang, Jiazhong ; Li, Chunyang ; Yue, Dan ; Zhang, Xinlei ; Wang, Zhenling ; Lu, Wei
Author_Institution :
Appl. Chem. & Fine Chem. Eng. Technol. Res. Center of Zhoukou City, Zhoukou Normal Univ., Zhoukou, China
Abstract :
Single-crystal EuPO4 nanowires have been prepared by a facile hydrothermal technique and characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), UV-Vis diffuse reflectance spectrum (DRS), photoluminescence (PL) spectra and lifetime. The results indicate that the as-prepared sample has monoclinic structure of EuPO4 and is mainly composed of single-crystal nanowires with the diameter of around 30 nm and the length of 2~5 μm. Under the UV light irradiation, single-crystal EuPO4 nanowires exhibit bright orange-red emission corresponding to the 5D0→7FJ (J = 1, 2, 3, 4) transitions of the Eu3+ ions. The PL decay curve can be fitted into a double exponential function and the average lifetime is about 0.5 ms.
Keywords :
X-ray diffraction; crystal structure; europium compounds; nanofabrication; nanowires; photoluminescence; radiative lifetimes; scanning electron microscopy; transmission electron microscopy; ultraviolet radiation effects; ultraviolet spectra; visible spectra; EuPO4; SEM; TEM; UV light irradiation; UV-Vis diffuse reflectance spectrum; X-ray diffractometer; XRD; average lifetime; bright orange-red emission; double exponential function; europium ion transitions; hydrothermal synthesis; hydrothermal technique; monoclinic structure; optical properties; photoluminescence decay curve; photoluminescence lifetime; photoluminescence spectra; scanning electron microscope; single-crystal nanowires; transmission electron microscope; Ions; Nanobioscience; Nanoparticles; Nanowires; Optical diffraction; Scanning electron microscopy; X-ray scattering;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2012 Symposium on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4577-0909-8
DOI :
10.1109/SOPO.2012.6270448