A novel upconverison phosphor Gd2Mo4O15:Yb3+, Ho3+: intense red emission and ratiometric temperature sensing under 980 nm excitation. (27th June 2018)

• Record Type: Journal Article
• Authors: Pang, Tao; Huang, Zejun
• Is Part Of: Materials research express. Volume 5:Number 6(2018)
• Publication Date: 2018-06-27
• Subjects: upconversion -- red emission -- temperature sensing -- Gd2Mo4O15; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/aacc8e
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: In this paper, a novel upconversion phosphor is reported. Based on XRD and EDS, it is confirmed that the phosphor is monoclinic Gd2 Mo4 O15 :Yb 3+, Ho 3+ with P21/c space group. The non-radiation decay of 5 I6 to 5 I7 dominants the depopulation of 5 I6, thus the phosphor produces the red upconversion emission with high emission intensity and good color quality, and shows the favorable temperature sensing property. When using non-continuous excitation mode, the temperature sensitivity is determined as 0.0452 K −1 . Because the sensitivity is the same at any temperature, the new upconversion material may have greater potential for temperature sensing application than Er 3+ doped upconverison materials.