AC Electroluminescent Processes in Pr3+-Activated (Ba0.4Ca0.6)TiO3 Diphase Polycrystals | |
Gao, Nan1; Zhang, Min2,3; Zhang, Jun-Cheng1 | |
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. |
资助项目 | National Natural Science Foundation of China[11404181] |
WOS关键词 | FILMS ; MULTILAYER ; CERAMICS ; 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:8080/handle/2SI8HI0U/26168] |
专题 | 自然资源部第一海洋研究所 |
通讯作者 | Zhang, Jun-Cheng |
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). |
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