Synthesis and cathodoluminescent properties of Lu3(Al,Ga)5O12: Tb3+ with and without niobium-doped TiO2 coating

Xian-Zhong Zhu; Cheng-Lin Chu; Paul K. Chu

doi:10.1007/s10971-015-3861-7

Author(s)

Xian-Zhong Zhu
Cheng-Lin Chu
Paul K. Chu

Detail(s)

Original language	English
Pages (from-to)	355-360
Journal / Publication	Journal of Sol-Gel Science and Technology
Volume	77
Issue number	2
Publication status	Published - 1 Feb 2016

Link(s)

DOI	DOI https://doi.org/10.1007/s10971-015-3861-7 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84955745846&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(1d51b2cb-4e32-4da5-b1a1-b1ce9fa30029).html

Abstract

Abstract: (Lu_0.95Tb_0.05)₃(Al_0.80Ga_0.20)₅O₁₂ (LuAGG:Tb) phosphor is synthesized by a high-temperature solid-state reaction, and a thin layer of niobium-doped TiO₂ (NTO) is deposited on the phosphor particles by coprecipitation-assisted solvothermal synthesis. The crystal structure, micromorphology, chemical bonding, and cathodoluminescent (CL) properties of both the uncoated and NTO-coated phosphors are determined. The phosphor powders possess a single phase, and the average diameter of the particles is about 3 μm. NTO nanoparticles with the anatase crystal structure are connected to the phosphor particles electrostatically. Both types of phosphors exhibit the characteristic emission spectrum of Tb³⁺ under electron excitation. The CL intensity decreases, whereas the resistance to luminance saturation and degradation increases with the coating. Graphical Abstract: [Figure not available: see fulltext.]

Research Area(s)

Cathodoluminescence, Coprecipitation-assisted solvothermal synthesis, Lutetium garnet, TiO2 coating

Citation Format(s)

[ RIS ] [ BibTeX ]

Synthesis and cathodoluminescent properties of Lu₃(Al,Ga)₅O₁₂: Tb³⁺ with and without niobium-doped TiO₂ coating. / Zhu, Xian-Zhong; Chu, Cheng-Lin; Chu, Paul K.
In: Journal of Sol-Gel Science and Technology, Vol. 77, No. 2, 01.02.2016, p. 355-360.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Zhu, X-Z, Chu, C-L & Chu, PK 2016, 'Synthesis and cathodoluminescent properties of Lu₃(Al,Ga)₅O₁₂: Tb³⁺ with and without niobium-doped TiO₂ coating', Journal of Sol-Gel Science and Technology, vol. 77, no. 2, pp. 355-360. https://doi.org/10.1007/s10971-015-3861-7

Zhu, X.-Z., Chu, C.-L., & Chu, P. K. (2016). Synthesis and cathodoluminescent properties of Lu₃(Al,Ga)₅O₁₂: Tb³⁺ with and without niobium-doped TiO₂ coating. Journal of Sol-Gel Science and Technology, 77(2), 355-360. https://doi.org/10.1007/s10971-015-3861-7

Zhu XZ, Chu CL, Chu PK. Synthesis and cathodoluminescent properties of Lu₃(Al,Ga)₅O₁₂: Tb³⁺ with and without niobium-doped TiO₂ coating. Journal of Sol-Gel Science and Technology. 2016 Feb 1;77(2):355-360. doi: 10.1007/s10971-015-3861-7

Zhu, Xian-Zhong ; Chu, Cheng-Lin ; Chu, Paul K. / Synthesis and cathodoluminescent properties of Lu₃(Al,Ga)₅O₁₂ : Tb³⁺ with and without niobium-doped TiO₂ coating. In: Journal of Sol-Gel Science and Technology. 2016 ; Vol. 77, No. 2. pp. 355-360.

Synthesis and cathodoluminescent properties of Lu3(Al,Ga)5O12 : Tb3+ with and without niobium-doped TiO2 coating