Single step synthesis of Ce doped CaAl2O4 and CaAl4O7 systems |
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Authors: | Suchinder K. Sharma M. Manzar Malik |
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Affiliation: | Luminescence Laboratory, Maulana Azad National Institute of Technology, Bhopal, India |
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Abstract: | Both CaAl2O4 (CA2) and CaAl4O7 (CA4) oxide-systems possess monoclinic crystal structure. Herein, we have prepared CA2 and CA4 systems via single step combustion route. A good correlation is observed between calculated and the standard lattice parameters. Ce3+ ions were deliberately doped as extrinsic impurities in order to understand the crystal symmetry effects on the emission characteristics in the as-prepared matrices. Large red-shift was observed in CA4-emission spectrum despite of their same crystal structures. Possible reasons are discussed. |
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Keywords: | Phosphors Luminescence Crystal symmetry Combustion route |
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