(Ba,Sr)TiO3:RE perovskite phosphors (RE = Dy, Eu): nitrate pyrolysis synthesis, enhanced photoluminescence, and reversible emission against heating

doi:10.1039/c8ra01249k

	(Ba,Sr)TiO3:RE perovskite phosphors (RE = Dy, Eu): nitrate pyrolysis synthesis, enhanced photoluminescence, and reversible emission against heating
	Liu, Wanlu 1,2; Liu, Qian 1; Ni, Jia 1,2; Zhou, Zhenzhen 1,2; Liu, Guanghui 1
刊名	RSC ADVANCES
	2018
卷号	8 期号:37 页码:20781
ISSN号	2046-2069
DOI	10.1039/c8ra01249k
英文摘要	A series of (Ba,Sr)TiO3 phosphors singly doped with Eu3+ and Dy3+ were successfully synthesized using the nitrate pyrolysis method at 750 degrees C. Eu3+ or Dy3+ single-doped BaTiO3 retained the tetragonal crystal structure of the host, while the Sr2+-substituted (Ba,Sr)TiO3:RE3+ (RE3+ = Eu3+ or Dy3+) experienced a phase transformation from tetragonal to cubic phase with a unit cell shrinkage. For Eu3+ doped phosphors, BaTiO3:xEu(3+) (x = 0.02-0.10) exhibited red photoluminescence and the highest intensity of emission belonged to the optimal-doped BaTiO3:xEu(3+) (x = 8 mol%). Moreover, the substitution of 30 mol% Sr2+ for Ba2+ (that is Ba0.7Sr0.3TiO3:xEu(3+), x = 8 mol%) further enhanced the emission intensity of BaTiO3:xEu(3+) (x = 8 mol%). For Dy3+ doped phosphors, BaTiO3:xDy(3+) (x = 0.02-0.10) showed yellow photoluminescence and the highest light intensity was from the optimal-doped BaTiO3:xDy(3+) (x = 4 mol%). In addition, the substitution of 20 mol% Sr2+ for Ba2+ (the phosphor Ba0.8Sr0.2TiO3:xDy(3+), x = 4 mol%) induced further increase in emission intensity of BaTiO3:xDy(3+) (x = 4 mol%). The emission intensities at higher temperature of 100 degrees C retained about 70% and 90% of the initial values at room temperature (RT) for the optimal BaTiO3:xEu(3+) (x = 8 mol%) and BaTiO3:xDy(3+) (x = 4 mol%) phosphors, respectively, while the emission intensities at the temperature of 100 degrees C retained about 60% and 80% of the initial intensities at RT for the optimal Sr2+-substituted Ba0.7Sr0.3TiO3:xEu(3+) (x = 8 mol%) and Ba0.8Sr0.2TiO3:xDy(3+) (x = 4 mol%) phosphors, respectively. It is worth noting that on cooling down to RT again from 210 degrees C, the BaTiO3:xDy(3+) (x = 4 mol%) phosphor exhibited excellent luminescent thermal stability (with a high activation energy of 0.387 eV) and the strongest recovery (approximate to 95%) of PL emission among the series of phosphors. The as-prepared phosphors with optimal compositions would be good candidates for the applications in lighting, display, and related fields.
学科主题	Chemistry, Multidisciplinary
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000434694300037
资助机构	The authors are grateful to the financial supports from the National Key R&D Program of China (Grant No. 2016YFB0700204 and 2016YFB0701004), the National Natural Science Foundation of China (Grant No. 51502329 and 51702343), and the Research Program of Shanghai Sciences and Technology Commission Foundation (Grant No. 14DZ2261203 and 16ZR1441100). ; The authors are grateful to the financial supports from the National Key R&D Program of China (Grant No. 2016YFB0700204 and 2016YFB0701004), the National Natural Science Foundation of China (Grant No. 51502329 and 51702343), and the Research Program of Shanghai Sciences and Technology Commission Foundation (Grant No. 14DZ2261203 and 16ZR1441100).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24571]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 2.Shanghai Inst Mat Genome, 99 Shangda Rd, Shanghai 200444, Peoples R China 3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Wanlu,Liu, Qian,Ni, Jia,et al. (Ba,Sr)TiO3:RE perovskite phosphors (RE = Dy, Eu): nitrate pyrolysis synthesis, enhanced photoluminescence, and reversible emission against heating[J]. RSC ADVANCES,2018,8(37):20781, 20789.
APA	Liu, Wanlu,Liu, Qian,Ni, Jia,Zhou, Zhenzhen,&Liu, Guanghui.(2018).(Ba,Sr)TiO3:RE perovskite phosphors (RE = Dy, Eu): nitrate pyrolysis synthesis, enhanced photoluminescence, and reversible emission against heating.RSC ADVANCES,8(37),20781.
MLA	Liu, Wanlu,et al."(Ba,Sr)TiO3:RE perovskite phosphors (RE = Dy, Eu): nitrate pyrolysis synthesis, enhanced photoluminescence, and reversible emission against heating".RSC ADVANCES 8.37(2018):20781.