Synthesis, characterization and optical activity of La-doped ZnWO<inf>4</inf>nanorods by hydrothermal method

• Main Authors: Jirapong Arin, Phattranit Dumrongrojthanath, Oranuch Yayapao, Anukorn Phuruangrat, Somchai Thongtem, Titipun Thongtem
• Format: Journal
• Published: 2018
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84893173829&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/45139
• Institution: Chiang Mai University

One-dimensional La doped ZnWO 4 nanostructures have been synthesized by hydrothermal method. The effect of various La contents doped ZnWO 4 samples on phase, morphologies and optical properties was investigated and characterized by X-ray diffraction (XRD), field scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), Raman and UV-visible spectroscopy, respectively. The results of XRD, SEM and SAED revealed that all products were one-dimensional monoclin ic ZnWO 4 nanorods while doped La 3+ constants into ZnWO 4 lattice. The observation of TEM and HRTEM showed that the obtained La 3+ doped ZnWO 4 with different La constants were homogenous nanorods shapes with grow along [0 2 1] direction. The optical property result showed that La 3+ doped ZnWO 4 is a red shifted absorption when comparing to pure ZnWO 4 . © 2013 Elsevier Ltd. All rights reserved.