Investigation of the spectroscopic properties of nanoparticle doped liquid crystals

In addition to being fluid like liquid, liquid crystal compounds have certain arrangements and orientations such as solid-state and have a specific lattice structure such as liquid phase in appearance and crystalline structure in the solid phase. The liquid of any substance has an isotropic orientation, while liquid crystal compounds are anisotropic. Considering the temperature-state graphs, they can exist in the form of liquid crystals at a certain temperature between the solid-state temperature and the liquid-state temperature. Nanoparticles are nano-structured crystals that can be synthesized and can carry electrons. In addition, the band gap of nanostructured semiconductors with dimensions smaller than 100 nm can also change. These nanostructures have photovoltaic, laser, biochemical sensor, biomedical imaging, and different optoelectronic applications. Since liquid crystals have anisotropy, they are induced under an electric field and have a certain orientation. Due to these properties, liquid crystals doped with nanostructures for use in imaging technologies continue to be developed for better image quality and reduction of energy consumption. In this thesis, the interactions and electronic transitions between liquid crystals with benzoic acid and benzoate structures and semiconductor nanoparticles with different structures fluorescence spectra in different solvent environments were experimentally investigated.