engleski

Investigation of nanocrystalline tungsten- and tellurium-based double and triple perovskites prepared by solution chemistry methods

Perovskite materials exhibit interesting physical properties due to their exceptional structure. Those properties have been studied for various practical applications: from superconductors, electrode and electrolyte materials for fuel cells, catalytic converters in diesel vehicles, components for solar cells to the memory device components. While numerous metal oxide combinations with single, double and triple perovskite structure have been characterized so far, only few of them have been synthesized in nanocrystalline form. Since nanosized materials have exceptional properties due to the quantum size effect, nanocrystalline perovskites could possess interesting properties. Hereby we present nanocrystalline A3B2(W/Te)O9 and A2B(W/Te)O6 (A=Sr, Ba, Ca ; B=Fe, Co, Mn, Ni) with double and triple perovskite structure that have been synthesized using bottom up approach in liquid state. We investigated reaction mechanisms of synthetic routes, structurally characterizied synthesized compounds and measured their properties in comparison with corresponding bulk materials.

perovskite ; solution chemistry ; synthesis ; tungsten ; tellurium

DAAD via German-Croatian exchange partnership