AC Electroluminescent Processes in Pr3+-Activated (Ba0.4Ca0.6)TiO3Diphase 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)TiO3Diphase Polycrystals
	Gao, Nan 1; Zhang, Min 2,3; Zhang, Jun-Cheng 1
刊名	Materials
	2017
卷号	10 期号:5
关键词	Barium compounds Calcium compounds Crystal microstructure Display devices Electric fields Electric impedance measurement Electrooptical devices Luminescent devices Optical properties Optoelectronic devices Polycrystals Powders Praseodymium compounds Solid state reactions Titanium oxides
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 the1D2-3H4transition 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. © 2017 by the authors.
电子版国际标准刊号	19961944
资助项目	National Natural Science Foundation of China[11404181]
WOS研究方向	Materials Science
语种	英语
出版者	MDPI AG, Postfach, Basel, CH-4005, Switzerland
WOS记录号	WOS:000404411000117
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/6497]
专题	业务部门_海洋环境与数值模拟研究室
作者单位	1.College of Physics, Qingdao University, Qingdao; 266071, China;; 2.Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao; 266237, China;; 3.First Institute of Oceanography, State Oceanic Administration, Qingdao; 266061, 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)TiO3Diphase Polycrystals[J]. Materials,2017,10(5).
APA	Gao, Nan,Zhang, Min,&Zhang, Jun-Cheng.(2017).AC Electroluminescent Processes in Pr3+-Activated (Ba0.4Ca0.6)TiO3Diphase Polycrystals.Materials,10(5).
MLA	Gao, Nan,et al."AC Electroluminescent Processes in Pr3+-Activated (Ba0.4Ca0.6)TiO3Diphase Polycrystals".Materials 10.5(2017).