Print Email Facebook Twitter Tunable Luminescence of CeAl11O18 Based Phosphors by Replacement of (AlO)+ by (SiN)+ and Co-Doping with Eu Title Tunable Luminescence of CeAl11O18 Based Phosphors by Replacement of (AlO)+ by (SiN)+ and Co-Doping with Eu Author Yin, L.J. Chen, G.Z Wang, C. Xu, X. Hao, L.Y. Hintzen, H.T.J.M. Faculty Applied Sciences Department RST/Radiation, Science and Technology Date 2014-06-20 Abstract A series of Si-N or Eu-Li doped CeAl11O18 and CeAl12O18N phosphors are prepared by solid–state reaction. Their structure and luminescence are researched carefully. Si-N doping with the concentration less than 8% can be successfully dissolved into CeAl11O18 crystal lattice and doesn't change the matrix structure, only resulting in crystal lattice shrinkage due to the shorter bond length for Si–N bond versus Al–O bond. It is observed that blue emission gradually decreases and UV emission becomes stronger due to the gradual disappearance of OMe ions with the increase of Si-N doping. Compared with the traditional UV emitting phosphor CeMgAl11O19, Si-N doped CeAl11O18 shows better thermal stability. The crystal structure and lattice parameters of Eu-Li codoped CeAl11O18 remain unchanged due to the large tolerance of rare-earth sites. On account of the energy transfer from UV emission of Ce3+ to Eu2+, a single overlapping blue emission with high intensity is obtained in Eu-Li codoped CeAl11O18 phosphor. To reference this document use: http://resolver.tudelft.nl/uuid:39e04e47-25a6-457e-a90b-972cecd12a77 DOI https://doi.org/10.1149/2.0191407jss Publisher The Electrochemical Society ISSN 2162-8769 Source ECS Journal of Solid State Science and Technology, 3 (8), 2014 Part of collection Institutional Repository Document type journal article Rights © 2014 The Electrochemical Society Files PDF Hintzen_2014.pdf 2.77 MB Close viewer /islandora/object/uuid:39e04e47-25a6-457e-a90b-972cecd12a77/datastream/OBJ/view