A blue-emitting Eu2+-activated BaZnAl10O17 phosphor for white light emitting diodes: structure and luminescence properties

Tianqing Zhang; Xiliang Jiang; Rujia Chen; Bingyan Liu; Weiling Yang; Ce Li; Hai Lin; Huisheng Liu; Chun Li; Fanming Zeng; Zhongmin Su

doi:10.1039/D2QI01415G

A blue-emitting Eu²⁺-activated BaZnAl₁₀O₁₇ phosphor for white light emitting diodes: structure and luminescence properties

Tianqing Zhang,^a Xiliang Jiang,^a Rujia Chen,^a Bingyan Liu,^a Weiling Yang,^a Ce Li,^afg Hai Lin,^ab Huisheng Liu,^cd Chun Li,

*^abe Fanming Zeng

*^ab and Zhongmin Su

*^ab

Author affiliations

* Corresponding authors

^a School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China
E-mail: lichun1210@163.com

^b Collaborative Innovation Center of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun 130022, China

^c School of Materials Science and Engineering, Jilin Jianzhu University, Changchun, Jilin 130118, China

^d Jilin Jianzhu University, Changchun, Jilin 130118, China

^e State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P.R. China

^f Tonghua Normal University, College of Physics, Tonghua, Jilin 134002, China

^g Southwest Institute of Technology Physics, Chengdu 610041, China

Abstract

In the process of developing high-performance LCDs, narrow-band emitting phosphors with excellent performance are indispensable. In this study, a narrow-band blue phosphor BaZnAl₁₀O₁₇:Eu²⁺ with an emission peak at 433 nm (which can be excited by near-ultraviolet light) and a full width at half maximum of 46 nm was found. The synthesized BaZnAl₁₀O₁₇:Eu²⁺ phosphor exhibits low thermal quenching behavior. There is only 16.4% loss in emission intensity at 423 K compared to the initial intensity at room temperature. Using the narrow-band emission phosphor BaZnAl₁₀O₁₇:Eu²⁺ as the blue light source, the prepared white LED device excited using a near-ultraviolet chip emits high-brightness white light (CCT = 4436 K, R_a = 93.96), whose CIE coordinates are (0.3387, 0.3785) and CG can reach 99% of the NTSC standard. The narrow-band blue-emitting BaZnAl₁₀O₁₇:Eu²⁺ phosphor has potential application value in white light-emitting diodes.

Inorganic Chemistry Frontiers

A blue-emitting Eu²⁺-activated BaZnAl₁₀O₁₇ phosphor for white light emitting diodes: structure and luminescence properties

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A blue-emitting Eu²⁺-activated BaZnAl₁₀O₁₇ phosphor for white light emitting diodes: structure and luminescence properties

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