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

Ling Li; Shenwei Wang; Guangyao Mu; Xue Yin; Kai Ou; Lixin Yi

doi:10.1038/srep16659

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

Sci Rep. 2015 Nov 13:5:16659. doi: 10.1038/srep16659.

Authors

Ling Li¹, Shenwei Wang¹, Guangyao Mu¹, Xue Yin¹, Kai Ou¹, Lixin Yi¹

Affiliation

¹ Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, China.

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.

Publication types

Research Support, Non-U.S. Gov't