Growth of Mn-Co-Ni-O nanowires by pulsed laser deposition

Abstract

Manganese-cobalt–nickel oxides (Mn-Co-Ni-O) materials have been widely applied as infrared detectors due to its superior thermistor properties and one-dimensional Mn-Co-Ni-O nanowires are expected to significantly enhance the detecting performance. We herein present a novel approach for successfully growing Mn0.79Co1.71Ni0.50O4 nanowires with Au as catalyst by pulsed laser deposition. The influence of growth parameters on the morphology and structural properties of nanowires was explored, and the optimal growth condition of nanowires was obtained. The growth mechanism of Mn-Co-Ni-O nanostructures under different oxygen partial pressure environments is discussed. The deep understanding of the underlying growth mechanism can stimulate more future research on fabrication of high-quality Mn-Co-Ni-O nanowires.