A Garnet-Based Ca2YZr2Al3O12:Eu3+ Red-Emitting Phosphor for n-UV Light Emitting Diodes and Field Emission Displays: Electronic Structure and Luminescence Properties

Xicheng Wang; Zhengyan Zhao; Quansheng Wu; Yanyan Li; Yuhua Wang

doi:10.1021/acs.inorgchem.6b01711

A Garnet-Based Ca₂YZr₂Al₃O₁₂:Eu³⁺ Red-Emitting Phosphor for n-UV Light Emitting Diodes and Field Emission Displays: Electronic Structure and Luminescence Properties

Inorg Chem. 2016 Nov 7;55(21):11072-11077. doi: 10.1021/acs.inorgchem.6b01711. Epub 2016 Oct 12.

Authors

Xicheng Wang¹, Zhengyan Zhao¹, Quansheng Wu¹, Yanyan Li¹, Yuhua Wang¹

Affiliation

¹ Key Laboratory for Special Function Materials and Structural Design of the Ministry of the Education, and ‡Department of Material Science, School of Physical Science and Technology, Lanzhou University , Lanzhou, 730000, China.

PMID: 27731987
DOI: 10.1021/acs.inorgchem.6b01711

Abstract

A series of Ca₂YZr₂Al₃O₁₂:Eu³⁺ (CYZA) phosphors were successfully synthesized through conventional solid-state method. The electronic structure and their photoluminescence or cathodoluminescence properties were investigated in detail. Under n-UV excitation, the CYZA:Eu³⁺ exhibits more intense red emission than the commercial Y₂O₃:Eu³⁺ phosphor. A WLED lamp with good color render index was obtained by fabricating the phosphor with BAM:Eu²⁺ and LuAG:Ce³⁺ phosphors. The phosphor also exhibits red emission with high current saturation and high resistance under low voltage electron bombardment. The degradation resistance can be compared to the commercial Y₂O₃:Eu³⁺ phosphor. All the results indicate that the CYZA:Eu³⁺ has potential applications in both white LEDs and FEDs.