Study of SnO2 Nanorods Coated Using the PECVD Technique

We fabricated core-sheath one-dimensional nanostructures, in which the sheath layers were deposited on SnO2 nanorods by using a plasma-enhanced chemical vapor deposition (PECVD) method. We characterized the samples by using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and photoluminescence (PL) spectroscopy. The prepared coaxial nanostructures were found to possess tetragonal rutile SnO2 cores with Si-based sheaths. Being similar to the uncoated product, the PL of the coated product exhibited broad bands in the yellow region of the visible spectrum.