Work

Synthesis and Luminescent Properties of Lu[sub 3]Ga[sub 5]O[sub 12]:RE[sup 3+] (RE=Eu, Tb, and Pr) Nanocrystalline Phosphors via Sol-Gel Process

Year: 2008

Type: article

Abstract: , , and phosphors were prepared through a Pechini-type sol-gel process. X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), photoluminescence, and cathodoluminescence spectra were utilized to characterize the synthesized phosphors. The XRD results reveal that the sample begins to crystallize at and fully crystallined pure phase can be obtained at . The FESEM image indicates that the phosphor sample is composed of aggregated rice grainlike particles with sizes around . Under the excitation of ultraviolet light and low-voltage electron beams , the , , and phosphors show the characteristic emissions of ( transitions, orange-red), ( transitions, green), and ( , , , and transitions, green), respectively. The corresponding luminescence mechanisms are discussed. These phosphors have potential applications in area of field emission displays.

Source: Journal of The Electrochemical Society

DOI: 10.1149/1.2825138

Authors: Xiaoming Liu, Ling Zhu, Lili Wang, Cuicui Yu, Jun Lin

Institutions: Chinese Academy of Sciences, Changchun Institute of Applied Chemistry

Language: English

Topic: Luminescence Properties of Advanced Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funders: National Natural Science Foundation of China, Chinese Academy of Sciences