| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Solid-state Optical Materials and Luminescence Properties
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| Presentation Title |
Effect of Samarium Doping on the Phase Stability and Optical Properties of Agro-food Waste-derived Calcium Silicates
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| Author(s) |
Manmeet Kaur, Kulvir Singh |
| On-Site Speaker (Planned) |
Manmeet Kaur |
| Abstract Scope |
Rice husk ash and eggshell powder are used as sources of silica and calcium oxide to synthesize Ca3-xSi2O7:xSm3+ (x (%) = 0.25, 0.50, 0.75, and 1.00)) via solid-state reaction method. X-ray diffraction results indicate that the Ca3Si2O7 phase co-exists with the monoclinic-Ca2SiO4 phase. The effect of Sm3+ doping and stoichiometry on the volume fraction of the two phases is explored. SEM micrographs confirm the presence of two phases. Photoluminescence emission spectra contain characteristic emission peaks of Sm3+ and strong peaks due to the titanium ions, which are inherently found in agro-food wastes. Commission International de'Eclairage (CIE) coordinates lie in the green region, which is different from the CIE coordinates of Sm3+ doped samples derived from mineral oxides. |