AC Electroluminescent Processes in Pr3+-Activated (Ba0.4Ca0.6)TiO3 Diphase Polycrystals

doi:10.3390/ma10050565

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋环境与数值模拟研究室

	AC Electroluminescent Processes in Pr3+-Activated (Ba0.4Ca0.6)TiO3 Diphase Polycrystals
	Gao, Nan 1; Zhang, Min 2,3; Zhang, Jun-Cheng 1
刊名	MATERIALS
	2017-05
卷号	10 期号:5
关键词	powders solid-state reaction optical properties functional applications
ISSN号	1996-1944
DOI	10.3390/ma10050565
英文摘要	We investigated the properties of alternating current (AC)-driven electroluminescence from (Ba0.4Ca0.6)TiO3:Pr3+ diphase polycrystal-based device. The results of crystal phases and micrographs, and the symmetrical dual emissions in one AC cycle, indicate the spontaneous formation of a dielectric/phosphor/dielectric sandwich microstructure in (Ba0.4Ca0.6)TiO3:Pr3+. The electroluminescent device emits a red light of 617 nm, which is attributed to the D-1(2)-H-3(4) transition of Pr3+ in the phosphor phase. At a fixed AC frequency, the intensity of electroluminescence exhibits a steep enhancement when applying an increased driving electric field that is beyond a threshold. In a fixed driving electric field, the intensity of electroluminescence shows a rapid rise at low frequencies, but reaches saturation at high frequencies. Based on a double-injection model, we discussed systematically the electroluminescent processes in a whole cycle of AC electric field, which matched well with the experimental data. Our investigation is expected to expand our understanding of such a diphase electroluminescent device, thereby promoting their applications in lighting and displays.
WOS研究方向	Materials Science
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000404411000117
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/3177]
专题	业务部门_海洋环境与数值模拟研究室
作者单位	1.Qingdao Univ, Coll Phys, Qingdao 266071, Peoples R China; 2.Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao 266237, Peoples R China; 3.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Gao, Nan,Zhang, Min,Zhang, Jun-Cheng. AC Electroluminescent Processes in Pr3+-Activated (Ba0.4Ca0.6)TiO3 Diphase Polycrystals[J]. MATERIALS,2017,10(5).
APA	Gao, Nan,Zhang, Min,&Zhang, Jun-Cheng.(2017).AC Electroluminescent Processes in Pr3+-Activated (Ba0.4Ca0.6)TiO3 Diphase Polycrystals.MATERIALS,10(5).
MLA	Gao, Nan,et al."AC Electroluminescent Processes in Pr3+-Activated (Ba0.4Ca0.6)TiO3 Diphase Polycrystals".MATERIALS 10.5(2017).