Effect of polymer matrix on the structure and luminescence properties of barium zirconate nanocrystals

Abstract

The influence of polymer environment on the luminescent properties of barium zirconate nanocrystals has been studied by cathodoluminescence (CL) spectroscopy. It was found that a polystyrene (PS) shell around the BaZrO 3 nanocrystals significantly modifies the CL spectra. This phenomenon can be explained by interaction between the PS matrix and the BaZrO 3 particles, changing the surface states of the nanocrystals. This conclusion is confirmed by complementary experimental studies including X-ray diffraction, FTIR spectroscopy and scanning electron microscopy.