The 3D WS2 microspheres: Preparation, characterization and optical absorption properties

摘要

Nanomaterials with three-dimensional (3D) hierarchical architectures often exhibit good functional properties and have attracted vast interests. In current work, the WS2 microspheres self-assembled by short nanorods have been successfully synthesized via a facile hydrothermal route. Moreover, a possible growth mechanism of this novel WS2 microspheres has been proposed. It is noted that the WS2 architectures show excellent UV-visible optical absorption properties and relatively weak photoluminescence (PL) emission. Such a synthetic method may open up an avenue to tailor the morphologies of the other transition metal sulfides. (C) 2015 Elsevier B.V. All rights reserved.