Tailorable Multicolor Up‐conversion Emissions in Tm3+/Ho3+/Yb3+ Co‐Doped LiLa(MoO4)2. Issue 4 (10th January 2013)

• Record Type: Journal Article
• Authors: Li, Ting; Guo, Chongfeng; Zhao, Puju; Li, Lin; Jeong, Jung Hyun; Ballato, J.
• Is Part Of: Journal of the American Ceramic Society. Volume 96:Issue 4(2013)
• Page Start: 1193
• Page End: 1197
• Publication Date: 2013-01-10
• Subjects: Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.12153
• Languages: English
• ISSNs: 0002-7820

Abstract

<abstract abstract-type="main" id="jace12153-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Using a modified sol–gel method, LiLa(MoO₄)₂: Tm³⁺/Ho³⁺/Yb³⁺ phosphors with tailorable up‐conversion (UC) emission colors were prepared. Under the excitation of a 980 nm laser diode, up‐conversion red and green emissions in Ho³⁺/Yb³⁺ co‐doped and blue emission in Tm³⁺/Yb³⁺ co‐doped LiLa(MoO₄)₂ were observed, respectively. The intensities of the RGB (red, green, and blue) emissions could be controlled by varying concentrations of Tm³⁺ or Ho³⁺, and the optimal composition was also determined. In Tm³⁺/Ho³⁺/Yb³⁺ co‐doped LiLa(MoO₄)₂, the UC emission colors could be tuned from blue through white to yellow by adjusting the concentrations of Tm³⁺ or Ho³⁺. The UC excitation mechanisms were also investigated based on the power dependence of UC luminescence intensity.</p> </abstract>