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

 

Chem. Met. Alloys 6 (2013) 177-182

 

O. AKSIMENTYEVA, V. SAVCHYN, I. OPAYNYCH, P. DEMCHENKO, Yu. HORBENKO, V. PANKRATOV, A.I. POPOV

 

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 BaZrO3 nanocrystals significantly modifies the CL spectra. This phenomenon can be explained by interaction between the PS matrix and the BaZrO3 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.

 

 

Cathodoluminescence spectrum of a PSBaZrO3 (20%) composite.

 

Keywords

BaZrO3 nanocrystals / Polystyrene / Hybrid composite / Perovskites / Cathodoluminescence spectroscopy