Ca₃Sc₂Si₃O₁₂:1%Ce³⁺, x%Ba²⁺ Green Phosphors for White Light-Emitting Diodes

Abstract:

Low temperature-quenching and high-efficiency Ca₃Sc₂Si₃O₁₂:1%Ce³⁺, x%Ba²⁺ phosphors were prepared by solid state method and the properties of these phosphors were investigated. The results showed that co-doping of Ba²⁺ ions can improve the photoluminescence properties and decrease temperature-quenching of Ca₃Sc₂Si₃O₁₂:Ce³⁺ phosphor obviously. High-efficiency blue-green light-emitting diode was fabricated with the prepared phosphor and an InGaN blue-emitting (~460 nm) chip. Good performance of the prepared LED indicates that Ca₃Sc₂Si₃O₁₂:1%Ce³⁺, 0.5%Ba²⁺ phosphor is a suitable candidate for the fabrication of high-efficiency white LEDs.

• Periodical: Advanced Materials Research (Volumes 557-559)
• Pages: 776-780
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.557-559.776
• Online since: July 2012
• Authors: Yi Bo Chen, Wei Cai, Yong Qiao Liu, Meng Lian Gong
• Keywords: Ca₃Sc₂Si₃O₁₂, LED, Phosphor

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