Beilstein J. Nanotechnol.2021,12, 354–365, doi:10.3762/bjnano.12.29
thickness. The optical constants (i.e., the refractive index n, the extinction coefficient k, and the absorption coefficient α) of the SiO2andZnO oxide films were determined from the transmission spectra recorded in the range of 190–2500 nm by using the Swanepoel method, while the energy bandgap was
; optical quality; SiO2andZnO; structural properties; thin films; Introduction
The application of oxide thin films is quite diverse due to their excellent properties [1][2][3][4][5], such as dielectric properties [6][7][8] for the production of metamaterials [9]. Metamaterials applied in the field of
as SiO2andZnO, are used to build devices with metasurface structures whose properties can be observed in the visible spectrum. They are intensely investigated due to their versatile properties, such as high transmission in the visible range [12][13] and broad energy bandgap [14][15][16], among
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Figure 1:
XRD patterns of ZnO thin film samples with different thickness, namely: 200, 250, and 300 nm.
Beilstein J. Nanotechnol.2015,6, 1788–1804, doi:10.3762/bjnano.6.183
nanotoxicology by 2005 and the ‘pioneering’ NPs in environmental safety studies were CNTs, fullerenes, TiO2, SiO2andZnO. The analysis of the journals that contributed to the database revealed that more than half of the relevant papers originated from seven journals: Environmental Toxicology and Chemistry (29
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Figure 1:
Proposed fields of application of engineered nanomaterials (ENMs) according to the publications in ...