Microwave heating synthesis and luminescence property of Eu3 + doped SrMoO4 micro-octahedrons

Uniform SrMoO4 micro-octahedrons were synthesized by microwave heating method. The as-prepared products were characterized by several techniques. Results showed that the reactant concentration and reaction time had crucial influence on the morphology of the products. The possible growth process of SrMoO4 octahedron was proposed based on the time-dependent shape evolution, which followed Ostwald ripening, crystallization/dissolution, and re-crystallization. Eu3 +-doped (1–20 mol%) SrMoO4 with octahedrons-like polyhedron was prepared under the same condition. The excitation spectrum of SrMoO4:Eu3 + was mainly composed of three intense peaks of 305, 393 and 463 nm. The characteristic red emission peaks at 612/615 nm were ascribed to 5D0 → 7F2 transition of Eu3 + ions. The quenching concentration was found at ~ 15 mol% doping of Eu3 +.

Micro-sized SrMoO4 and SrMoO4:Eu3 + octahedrons were synthesized by a microwave heating method without adding surfactant. These octahedrons had uniform shape and narrow particle size distributions.Figure optionsDownload as PowerPoint slideHighlights
► Eu3+ doped SrMoO4 micro-octahedrons were synthesized by microwave heating route.
► The growth conditions and formation mechanism were studied in detail.
► Luminescence property of SrMoO4:Eu3+ with different Eu3+-doping was discussed.