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Well dispersed Y2O3 nanoparticles are prepared by azeotropic co‐precipitation method. (Ba0.90Ca0.10)(Ti0.9Sn0.1)O3 lead‐free piezoelectric ceramics doped with the nano‐sized Y2O3 (BCTZY, x = 0.01–0.09%) are synthesized at 1460 °C for 2 h via solid‐state sintering method. X‐ray diffraction suggests typical perovskite structure of all the compositions. The addition of the nano‐Y2O3 results in the improvement...
High‐saturated red phosphors Mn4+‐doped SrAl12O19 were prepared by solid‐state reaction methods. The luminescent properties of SrAl12O19:Mn4+ were systematically investigated. The excitation spectra indicated that SrAl12O19:Mn4+ could be effectively excited by both NUV light and the blue light of LED chips. The emission spectra exhibit two sharp peaks in the deep‐red region. The effects of codoping...
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