Van der Waals Epitaxy and Photoluminescence of Two-Dimensional CdS Nanoplates

doi:10.7517/j.issn.1674-0475.2016.03.273

Abstract

Abstract:

Two-dimensional (2D) materials have been demonstrated for applications of electronic and optoelectronic devices due to their unique structures and excellent properties. Nevertheless, researches on 2D CdS materials have remained conspicuously absent. In this work, we present the first growth of 2D CdS nanoplates on mica substrates via van der Waals epitaxy. The morphology, thickness, structure and component of the products were systematically studied by scanning electron microscopy, transmission electron microscopy, atomic force microscopy, X-Ray powder diffraction and Raman spectroscopy. They all clearly indicate that the as-synthesized 2D nanoplates possess a single-crystalline hexagonal structure, and have a lateral size around several microns and height about several tens of nanometers. Our work may open up a new pathway for the synthesis of 2D nanostructures of other non-layered materials and make it possible for 2D non-layered materials to apply in high performance electronic and optoelectronic devices.

Key words: van der Waals epitaxy, two-dimensional materials, CdS, non-layerd materials, photoluminescence

ZHU Dandan, XIA Jing, WANG Lei, LI Xuanze, MENG Xiangmin. Van der Waals Epitaxy and Photoluminescence of Two-Dimensional CdS Nanoplates[J]. Imaging Science and Photochemistry, 2016, 34(3): 273-280.

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