The bismuth triiodide-assisted horizontal growth of CdS nanowires and CdO-CdS necklace-like nanowires.
Bismuth triiodide, a compound with a layered structure, is utilized to confine the growth of nanowires along the substrate surface in a low-temperature solution-phase reaction. The confinement is attributed to the electrostatic force between the bismuth triiodide sheet and the deposited Cd2+ cations that caused the CdS nanowires to grow within the surface of the bismuth triiodide sheet. As the nanowires grew longer, they began to form a high-yield woven network. Additionally, use of the same reaction system but with a minimized amount of sulfur led to the growth of CdO-CdS necklace-like nanowires. The optical and electric measurements suggest that the photoluminescence and electron field emission properties of these nanostructures are highly affected by their morphologies and chemical compositions.
Department of Physics, Portland State University, PO Box 751, Portland, OR 97207, USA.
Haiyan
H
Li
Yanxue
Y
Chen
Jun
J
Jiao