(Invited) Enhancing the Blue Emission in Ce Doped Silicon Oxynitrides Thin Films for Electroluminescence Device Applications

Ce-doped SiOxNy and SiAlON matrices are promising materials for blue LED applications. The uniqueness of this approach stems from the fact that SiOxNy, as a host, combines specific properties of individual SiOx and SiNy matrices like solubility, efficient emission, 5 eV gap etc. with a broad excitation range (400 to 500 nm) of Ce3+ due to the 4f-5d transitions. Furthermore, the co-doping with aluminum enhances the Ce3+ emission. In this work, we...