Sn-catalyzed growth of MgO nanowires.
We reported the fabrication and characterization of MgO nanowires, which were grown by thermal evaporation of the mixture of MgB2 and Sn powders at 800 degrees C through a vapor-liquid-solid (VLS) process. We characterized as-synthesized MgO nanowires using X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Sn nanoparticles were located at the tips of the nanowires, serving as catalyst for the growth of MgO nanowires. The produced nanowires were of cubic MgO structures with diameters in the range of 10-170 nm. The PL measurement with a Gaussian fitting exhibited visible light emission bands centered at 403, 576, and 720 nm.
Kim
Hyoun Woo
HW
School of Materials Science and Engineering, Inha University, Incheon 402-751, South Korea.
Shim
Seung Hyun
SH
Lee
Jong Woo
JW