Cyclic MAM synthesis and UC photoluminescence of SrMoO4: Er3+/Yb3+ nanoparticles
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The upconversion (UC) photoluminescence of Er3+/Yb3+ co-doped SrMoO4 (SrMoO4 : Er3+/Yb3+) nanoparticles were successfully synthesized via a cyclic microwave-assisted metathetic (MAM) route. Well-crystallized SrMoO4 : Er3+/Yb3+ nanoparticles (100- 500 nm) were formed after heat treatment at 600 ο C for 3 h and showed a fine and homogeneous morphology. With excitation at 980 nm, SrMoO4 : Er3+/Yb3+# exhibited a strong 525-nm emission band and a weak 550-nm emission band in the green region and a weak 655-nm emission band in the red region. The Raman spectra of SrMoO4 : Er3+, SrMoO4 : Er3+/Yb3+ and SrMoO4 : Er3+/Yb3+# nanoparticles indicated additional strong peaks at both higher frequencies (564, 524, 456 and 403 cm-1) and lower frequencies (294, 251 and 220 cm-1).
Abstract
The upconversion (UC) photoluminescence of Er3+/Yb3+ co-doped SrMoO4 (SrMoO4 : Er3+/Yb3+) nanoparticles were successfully synthesized via a cyclic microwave-assisted metathetic (MAM) route. Well-crystallized SrMoO4 : Er3+/Yb3+ nanoparticles (100- 500 nm) were formed after heat treatment at 600 ο C for 3 h and showed a fine and homogeneous morphology. With excitation at 980 nm, SrMoO4 : Er3+/Yb3+# exhibited a strong 525-nm emission band and a weak 550-nm emission band in the green region and a weak 655-nm emission band in the red region. The Raman spectra of SrMoO4 : Er3+, SrMoO4 : Er3+/Yb3+ and SrMoO4 : Er3+/Yb3+# nanoparticles indicated additional strong peaks at both higher frequencies (564, 524, 456 and 403 cm-1) and lower frequencies (294, 251 and 220 cm-1).
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