Publication date: 30th May 2020
Two-dimensional (2D) pnictogen materials (P, As, Sb and Bi) have attracted increasing attention in the last years due to their outstanding physical properties and their potential applications in optoelectronics, sensors, energy storage and conversion or organic catalysis, to name a few.[1,2] Nevertheless, the application of BP in both electronic and optoelectronic devices is limited by its instability under ambient conditions. In contrast to BP, antimonene was predicted through first-principle calculations to be highly stable, exhibiting extraordinary properties[3] and has recently been isolated by micromechanical exfoliation and liquid phase exfoliation (top-down approaches).[4] However, the synthesis of high-quality layers of antimonene in larger quantities can only be addressed via a bottom-up approach. In this work, we prepare few-layer antimonene nanosheets using a colloidal chemistry route[5], which allows the synthesis of better quality nanosheets from the points of view of surface oxidation, morphology and size. These nanosheets were characterized with electron microscopy, atomic force microscopy, Raman spectroscopy, and X-ray powder diffraction, among others. In addition, with the aim of achieving thinner hexagonal nanosheets with greater lateral dimensions, we have carried out an exhaustive study of the influence of different reaction parameters. Overall, the results obtained from this study provide an in-deep understanding of the final material and allow the optimization of the experimental conditions paving the way for the development of electronic applications.
-Ministerio de Ciencia, Innovación y Universidades - Gobierno de España
-Excelencia Maria de Maeztu
-Plan GenT - CIDEGENT - Generalitat Valenciana
-European Research Council (ERC Starting Grant)
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