A study on the structure, luminescence and thermo-stability of polycrystalline Gd2Si2O7:Ce and (Gd, La)(2)Si2O7:Ce

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 高性能陶瓷和超微结构国家重点实验室 > 期刊论文

	A study on the structure, luminescence and thermo-stability of polycrystalline Gd2Si2O7:Ce and (Gd, La)(2)Si2O7:Ce
	Wei, Qinhua 1; Shi, Hongsheng 1; Zhou, Zhenzhen 2; Liu, Guanghui 2; Chen, Zhi 1; Qin, Laishun 1; Shu, Kangying 1; Liu, Qian 2
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2017
卷号	5 期号:6 页码:1443-1451
英文摘要	Gd2Si2O7:Ce (GPS:Ce) and (Gd, La)(2)Si2O7:Ce (La-GPS:Ce) phosphors with different crystal structures, tetragonal, orthorhombic and triclinic, were synthesized via a sol-gel technique. The prepared samples have been systematically investigated using room temperature (RT) XRD, high temperature (HT) XRD, HRTEM, selected area electron diffraction (SAED) and EDS elemental analysis. The results show that the phase transition occurred at 1350-1450 degrees C and the tetragonal phase was a low-temperature metastable phase and the orthorhombic and triclinic structures were stable at high temperatures. It was observed that the three structures display completely different luminescence efficiencies under both UV lamp and X-ray excitation, but the decay time was not strongly dependent on the crystal structure. The luminescence thermo-stability and activation energy were also measured and calculated. The results indicate that the thermo-stability was strongly dependent on the crystal structure and the GPS:Ce-1500 degrees C sample showed the best thermo-stability. The three materials have potential application as a novel type of scintillator.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]	Materials Science ; Physics
关键词[WOS]	SCINTILLATION PROPERTIES ; ALPHA-PARTICLES ; SINGLE-CRYSTALS ; CE ; PERFORMANCE ; PHOSPHORS ; PLATES ; STATE ; PHASE ; HOST
收录类别	SCI
语种	英语
WOS记录号	WOS:000395888900019
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/23559]
专题	上海硅酸盐研究所_高性能陶瓷和超微结构国家重点实验室_期刊论文
作者单位	1.China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
推荐引用方式 GB/T 7714	Wei, Qinhua,Shi, Hongsheng,Zhou, Zhenzhen,et al. A study on the structure, luminescence and thermo-stability of polycrystalline Gd2Si2O7:Ce and (Gd, La)(2)Si2O7:Ce[J]. JOURNAL OF MATERIALS CHEMISTRY C,2017,5(6):1443-1451.
APA	Wei, Qinhua.,Shi, Hongsheng.,Zhou, Zhenzhen.,Liu, Guanghui.,Chen, Zhi.,...&Liu, Qian.(2017).A study on the structure, luminescence and thermo-stability of polycrystalline Gd2Si2O7:Ce and (Gd, La)(2)Si2O7:Ce.JOURNAL OF MATERIALS CHEMISTRY C,5(6),1443-1451.
MLA	Wei, Qinhua,et al."A study on the structure, luminescence and thermo-stability of polycrystalline Gd2Si2O7:Ce and (Gd, La)(2)Si2O7:Ce".JOURNAL OF MATERIALS CHEMISTRY C 5.6(2017):1443-1451.