We focus on the spin-polarized excitonic emission in metal halide perovskites and ZnO nanomaterials. In a high magnetic field (0-50 T) and low temperature (4.2-300 K), the magneto-photoluminescence, electro-luminescence, and absorption spectra were measured by using 

sophisticated home-built equipments. The research results would be useful for advancing the related applications in semiconductor spintronics.

We use a home-made set-up to measure the optical second harmonic genneration from multiferroic thin films. A Ti:Sapphire laser (130fs, 700-940 nm), a cooled spectrometer (300-1000nm), and a electromagnet (0-4000g, 77-300 K) are connected together and controlled by LabView program. The measurements is aimed to discover various polarization states and spatially resolve the nano-domains in these memory devices.