Effect of a Phosphorus Additive on Luminescent and Scintillation Properties of Ceramics GYAGG:Ce

IF 2.7 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics-Switzerland Pub Date : 2023-07-06 DOI:10.3390/ceramics6030091

Lydia V. Ermakova, V. G. Smyslova, Valery V. Dubov, D. Kuznetsova, Maria S. Malozovskaya, R. Saifutyarov, P. Karpyuk, P. Sokolov, I. Komendo, A. Bondarau, V. Mechinsky, M. Korzhik

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Abstract

The production of the scintillation ceramics can require the utilization of the phosphorus compounds at certain stages of 3D-printing, such as vat polymerization, applied for the formation of green bodies before sintering. The effect of phosphorus additive on the microstructure, optical, and scintillation parameters of Gd1.494Y1.494 Ce0.012Al2Ga3O12 (GYAGG:Ce) ceramics obtained by pressureless sintering at 1650 °C in an oxygen atmosphere was investigated for the first time. Phosphorus was introduced in the form of NH4H2PO4 into the initial hydroxocarbonate precipitate in a wide concentration range (from 0 to 0.6 wt.%). With increasing of phosphorus concentration, the density and the optical transmittance of garnet ceramics show a decrease, which is caused by an increase in the number of pores and inclusions. The light yield of fast scintillation, which is caused by Ce3+ ions, was found to be affected by the phosphorus additive as well. Moreover, an increase in phosphorescence intensity was recognized.

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磷添加剂对GYAGG:Ce陶瓷发光和闪烁性能的影响

闪烁陶瓷的生产可能需要在3d打印的某些阶段使用磷化合物，例如还原聚合，用于烧结前形成绿体。首次研究了磷添加剂对1650℃无压烧结Gd1.494Y1.494 Ce0.012Al2Ga3O12 (GYAGG:Ce)陶瓷显微结构、光学和闪烁参数的影响。磷以NH4H2PO4的形式被引入到初始的氢氧碳酸盐沉淀中，其浓度范围很宽(从0到0.6 wt.%)。随着磷浓度的增加，石榴石陶瓷的密度和透光率呈下降趋势，这是由于孔隙和包裹体数量的增加所致。Ce3+引起的快速闪烁的光产率也受到磷添加剂的影响。此外，还发现磷光强度增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ceramics-Switzerland Multiple-

CiteScore

3.00

自引率

7.10%

发文量

审稿时长

10 weeks