Advanced and Functional Structured Ceramics: MgF 2 and ZnS

Materials (Basel). 2022 Jul 7;15(14):4780. doi: 10.3390/ma15144780.

Abstract

Due to difficulties in obtaining monomaterials, intensive research into the properties of ceramic compositions has been undertaken, along with developments to the properties of the compositions. These are not inferior to monomeric structures for a number of basic parameters. Among the different types of ceramics, magnesium fluoride and zinc sulfide occupy a special place due to their unique properties and specific applications. In this paper, we studied functional optoelectronics and modulating technique elements based on the advanced ceramics MgF2 and ZnS. The results of the transmittance spectral parameters and the contact angle estimation as well as an AFM analysis of the studied ceramics, both pure and structured with carbon nanotubes, are presented. We observed that the main characteristics of the studied materials with a surface modified by carbon nanotubes could be significantly changed when an innovative laser-oriented deposition method was applied. This method permitted the CNTs to be deposited in a vertical position on the material surface. The main features of the carbon nanotubes-such as the smaller value of the refractive index, the greater strength between the carbon atoms, and the effective surface-were taken into consideration. The analytical, quantum chemical, and experimental results of the studies of the changes in the basic physical parameters of the selected model of the inorganic matrices of the ceramics are given.

Keywords: advanced structured materials; carbon nanotubes; laser-oriented deposition technique; magnesium fluoride; zinc sulfide.

Grant support

The analysis of the previous and current obtained results was made based on the knowledge of the authors accepted after the testing of the so many types of different inorganic materials via LOD techniques. The knowledge has been extended via jobs under the frameworks of the scientific grants and projects, for example: RFBR grants № 10-03-00916-a (2010–2012) and № 13-03-00044-a (2013–2015); Russian Basic Nanotechnology projects “Limiter” (2003–2006), “Modulator with SEW” (2011), “Nanocoatings-GOI” (2012–2015); ISTC project IPP A-1484 (2007–2009); FP7, Marie Curie Action, project “BIOMOLEC” (2012–2015); and the Russian–Israeli project “Adaptatsiya” (2017). Partially, this research has been supported by the Innovation Promotion Fund, grant no. 72598/C1-112174 as well as by the CPbETU “LETI” Supporting Scientific Research program via project No. HP/ДЦΦиΦ-1. DGK acknowledges financial support from the federal budget of the Russian Ministry of Science and Higher Education (No. 122041400110-4).