Design and Synthesis of CdWO4:Sb3+ Phosphor Based on sp Energy Level Regularities of Sb3+ Ion. Issue 7 (19th April 2015)

• Record Type: Journal Article
• Authors: Wang, Lili; Li, Huibin; Guo, Yunhua; Jiang, Haiyan; Wang, Qiang; Ren, Chunyan; Shi, Jinsheng; Ching, W.‐Y.
• Is Part Of: Journal of the American Ceramic Society. Volume 98:Issue 7(2015)
• Page Start: 2146
• Page End: 2152
• Publication Date: 2015-04-19
• Subjects: Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.13586
• Languages: English
• ISSNs: 0002-7820

Abstract

<abstract abstract-type="main" id="jace13586-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Sb<sup>3+</sup>‐activated CdWO<sub>4</sub> phosphors were designed according to <italic>sp</italic> energy levels regularities of Sb<sup>3+</sup> ion in some inorganic compounds. The <italic>sp</italic> energy levels regularities of Sb<sup>3+</sup> in dozens of compounds were established with the aid of the dielectric theory of the chemical bond for complex crystals: <italic>E</italic><sub>A</sub><italic> </italic>= 6.2187−1.7584<italic>h</italic><sub>e</sub>, <italic>E</italic><sub>B</sub> = 7.019−1.957<italic>h</italic><sub>e</sub>, <italic>E</italic><sub>C</sub><italic> </italic>= 7.259−1.964<italic>h</italic><sub>e</sub>. Environmental factor <italic>h</italic><sub><italic>e</italic></sub> of Cd site was calculated to be 1.6583 with the refined crystal structure and refractive index of CdWO<sub>4</sub>:Sb<sup>3+</sup>. Sb<sup>3+</sup>‐doped CdWO<sub>4</sub> was synthesized through a precipitation method and its structure was refined with the General Structure Analysis System. The transition energy of A band of Sb<sup>3+</sup> in CdWO<sub>4</sub> can be predicted to be 3.312 eV (374 nm), according to the relationship equation between <italic>E</italic><sub>A</sub> and environmental factor <italic>h</italic><sub>e</sub>. By monitoring the 521 nm emission band, the excitation spectrum gives a weak excitation band peaking at 355 nm, which was assigned to the <sup>1</sup>S<sub>0</sub>–<sup>3</sup>P<sub>1</sub> transition of Sb<sup>3+</sup> according to our prediction. Thus, Sb<sup>3+</sup>‐doped CdWO<sub>4</sub> phosphor was designed and synthesized successfully based on <italic>sp</italic> energy levels regularities of Sb<sup>3+</sup> ion. This work is a great help to understand the spectroscopy of Sb<sup>3+</sup> ion and will be useful for the design and development of Sb<sup>3+</sup>‐doped phosphors for applications.</p> </abstract>