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A novel violet/blue light-emitting device based on Ce2Si2O7.


ABSTRACT: Rare-earth silicates are highly efficient materials for silicon-based light sources. Here we report a novel light-emitting device based on Ce2Si2O7. Intense violet/blue electroluminescence was observed, with a turn-on voltage of about 13 V. The violet/blue emission is attributed to 4f-5d transitions of the Ce(3+) ions in Ce2Si2O7, which are formed by interfacial reaction of CeO2 and Si. Electroluminescence and photoluminescence mechanisms of the Ce2Si2O7 light-emitting device are also discussed.

SUBMITTER: Li L 

PROVIDER: S-EPMC4643234 | biostudies-other | 2015

REPOSITORIES: biostudies-other

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