| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8015349 | Materials Letters | 2018 | 4 Pages |
Abstract
The red-emitting Na2Ca2Si3O9:Eu3+ phosphors were synthesized by a sol-gel method.The phase, morphology, photoluminescence properties of the phosphors were well characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL) spectra, respectively. XRD confirmed the material phase as Eu3+-doped Na2Ca2Si3O9. The phosphors can be efficiently excited by near UV light to realize an intense red luminescence (613â¯nm) corresponding to the electric dipole transition 5D0â¯ââ¯7F2 of Eu3+ ions. The lifetimes of the phosphors were calculated for various concentrations of Eu3+ ions in Na2Ca2Si3O9. The CIE chromaticity coordinates of the phosphors were calculated and located in the red region.
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Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Yangguang Zhu, Chao Tong, Ruiqi Dai, Chuanyan Xu, Lei Yang, Yadong Li,