Articles - Decoration of MgO nanowires with Gd2O3 nanoparticles: structure and photoluminescence properties
- Wooseung Kanga, Han Gil Nab, Yong Jung Kwonb, Hong Yeon Chob, Sung Yong Kangb, Jae Young Parkc, Chongmu Leed, Myungho Konge and Hyoun Woo Kimb,*
- a Department of Metallurgical & Materials Engineering, Inha Technical College, Incheon 402-752, Republic of Korea b Division of Materials Science and Engineering, Hanyang University, Seoul 133-791, Republic of Korea c Surface R&D Group, Korea Institute of Industrial Technology (KITEC), 156 Gaetbeol-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea d School of Materials Science and Engineering, Inha University, Incheon 402-751, Republic of Korea e Department of Materials Engineering, Adama Science & Technology University, P. O. Box 1561, Adama, Ethiopia
Abstract
We decorated coated Gd2O3 nanoparticles on MgO nanowires by means of Gd sputtering and subsequent thermal annealing. The samples were characterized by X-ray diffraction, scanning electron microscope (SEM), and transmission electron microscopy. The surface roughness observed by SEM was revealed to be Gd2O3 nanoparticles in terms of TEM observation. The PL spectra exhibited a 2.9 eV-peak, which originated from the MgO nanowires, and thermal annealing produced green emission at about 2.4 eV, which is directly associated with the Gd2O3 structure. An additional weak peak at 2.0 eV was found to be related to impurities in the Gd2O3 structure.
Keywords: MgO, Nanorwires, Gd2O3, Sputtering.
This Article
Copyright 2019 International Orgranization for Ceramic Processing. All rights reserved.Clean-Energy Research Institute(CRI), Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
E-mail: jcpr@hanyang.ac.kr