Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 117, Issue 1, Pages 9-13Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2009.05.007
Keywords
DC thermal plasma; Zn2SnO4; Nanopowder; Optical properties
Categories
Ask authors/readers for more resources
In this research, we used the DC thermal plasma technique to produce well-crystallized zinc stannate (Zn2SnO4) nanopowders from commercial Zn-Sn alloy wire. The as-synthesized Zn2SnO4 consisted of spherical, rhombohedral and hexagonal shapes with an average size of about 35nm. The room-temperature photoluminescence spectroscopy of the Zn2SnO4 showed a UV emission at 390nm and visible emissions at 577, 651 and 671 nm. The UV emission was assigned to the near band-edge emission while the visible emissions were believed to be attributed by the residual strain, the crystal defects, the oxygen vacancies and the interstitial Zn during the growth process of ZTO2. According to UV-vis spectrum, the absorption edge of Zn2SnO4 is 367 +/- 5 nm, which corresponds to the band gap energy of 3.36 +/- 0.06 eV. (C) 2009 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available