THIN FILMS OF NANOCOMPOSITE BETWEEN GOLD NANOPARTICLES AND MOLYBDENUM DISULFIDE

Nanomaterials chemistry correlates the chemical structure of materials at the
nanometer scale with their respective properties and functions. [1] Gold
nanoparticles (AuNPs) can be applied in several areas due to their tunable
optical properties according to shape, size and surroundings. When joined to
2D materials, their range of applications is extended. Molybdenum disulfide
(MoS2) is an example of 2D material and its mechanical and electronic
properties lead to application in photovoltaic devices, batteries and hydrogen
evolution reactions.[2] Therefore, nanocomposites between AuNPs and MoS 2
are promising for optimizing applications. In this work, we obtained thin
films of nanocomposite between AuNPs and MoS2 through the liquid-liquid
interfacial route (LLIR), developed by GQM-UFPR. The nanocomposite
films are transparent and of different colors due to changes in synthesis
variables. Films were characterized by UV-Vis and Raman spectroscopy,
XRD and SEM. Characterizations indicate formation of AuNPs and
particular bands of the nanocomposite. Other spectroscopy and imaging
techniques will be used for better understanding of nanocomposite
properties.
References
1. Zarbin, A. J. G. Química de (Nano)Materiais. Química Nova. 2007, 30, 1469-1479.
2. Chhowalla, M.; et al. The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets. Nature Chemistry. 2013, 5, 263-275.