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

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, SiO
₂
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 SiO
₂
has network properties and excellent chemical and physical properties. Therefore, we chose SiO
₂
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 SiO
₂
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.