Preparation of Si-Ti based nanofibers and thin film by single-needle electrospinning

Abstract

Nanotechnology has also been widely used in many different fields. As one of the nanotechnologies, electrospinning is used to prepare nanofibers (nanofibers), for example: drug release, biomedical materials, applications of filter media, etc. In this study, we used polyvinylpyrrolidine (PVP, 1,300,000 Mw), alcohol, Dimethylformamide, hydrochloric acid, SiO2 as the precursor solution, and slowly added tetrabutyl titanate to prepare the spun fiber by single-needle electrospinning. The fibers are prepared by high temperature heat treatment and low temperature heat treatment. The motivation for selecting materials is that SiO2 has network properties and excellent chemical and physical properties. Therefore, we chose SiO2 as the matrix to be added, and the fibers will assume a bead structure. Later, due to the good optics, electrical and chemical properties of Si-Ti based compounds, which were suitable for use in photovoltaic materials, attempts were made to add tetrabutyl titanate and found that the structure of SiO2 fibers was produced after the addition of tetrabutyl titanate. After high temperature heat treatment, it can be converted into a film feature. The sample was analyzed through Multi-functional Field-Emission Scanning Electron Microscope (FE-SEM), Transmission Electron Microscope (TEM), X-ray diffraction analyzer (XRD), Thermogravimetric Analysis(TGA), Fourier-transform infrared spectroscopy (FT-IR), Therm- omechanical Analysis (TMA), Differential Scanning Calorimetry (DSC), Atomic Force Microscope (AFM) and Contact Angle Tester analyze as to determine the properties of nanofibers.