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题名: Investigation of the mechanism responsible for the photoluminescence enhancement with Li (+) co-doping in highly thermally stable white-emitting Sr8ZnSc(PO4)(7):Dy3+ phosphor
作者: Gou, Jing1, 2, 3;  Fan, Jingyan1, 2, 3;  Luo, Meng1, 2, 3;  Zuo, Shengnan1, 2, 3;  Yu, Binxun1, 2, 3;  Liu, Shengzhong Frank1, 2, 3, 4;  Jiao, Haiyan5
刊名: JOURNAL OF LUMINESCENCE
发表日期: 2017-07-01
DOI: 10.1016/j.jlumin.2017.03.010
卷: 187, 页:160-168
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
英文摘要: The strategy of co-doping Li+ was used with the aim of enhancing the emission intensities of Sr(Z8)nSc (PO4)(7) under near ultraviolet excitation. The luminescence enhancement was related to the deep defects V-o(..) which were produced by the introduction of ion. Furthermore, much deep V-o(..) were produced with the incorporation amount Li+ ion increasing. As the sensitizer, the produced deep V-o(..) can effectively tunnelling transfer energy to the nearby activator Dy3+ resulting in the photoluminescence enhancement in SZSPO:1.5%Dy3+,5%Li+ In addition, its yellow/blue emitting ratio and photo luminescent quantum yields both were improved under longer wavelength excitation. Furthermore, the excellent thermal stability of optimal SZSPO:1.5%Dy3+,5%Li+ excelled over commercial phosphor DS-200 below 225 degrees C. The electroluminescence properties of fabricated ABPD-WLED reach the optimum with V=10 V and 1=800 mA (lambda(ex)=365 nm) or 700 mA (lambda(ex)=388 nm), then the bright white luminescence can be obviously observed. These photoluminescence, electroluminescence and thermal properties testified the potential application of Sr8ZnSc(PO4)(7):1.5%Dy3+,5%Li+ as a new-style warm-white emitting LEDs phosphor. (C) 2017 Elsevier B.V. All rights reserved.
关键词[WOS]: OPTICAL STORAGE PROPERTIES ;  LUMINESCENCE PROPERTIES ;  DY3+-ACTIVATED SRB4O7 ;  ENERGY-TRANSFER ;  DIODES ;  IONS ;  LEDS ;  NANOCRYSTALS ;  EXCITATION ;  INTENSITY
语种: 英语
WOS记录号: WOS:000401128100023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152279
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Shaanxi Normal Univ, Sch Chem & Chem Engn, Sch Mat Sci & Engn, Key Lab Appl Surface & Colloid Chem,Natl Minist E, Xian 710119, Peoples R China
2.Shaanxi Normal Univ, Sch Chem & Chem Engn, Shaanxi Key Lab Adv Energy Devices, Xian 710119, Peoples R China
3.Shaanxi Normal Univ, Sch Chem & Chem Engn, Sch Mat Sci & Engn, Shaanxi Engn Lab Adv Energy Technol, Xian 710119, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, iChEM, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
5.Northwest Univ Nationalities, Coll Elect Engn, Key Lab Elect Mat State Ethn Affairs Commiss PRC, Lanzhou 730030, Peoples R China

Recommended Citation:
Gou, Jing,Fan, Jingyan,Luo, Meng,et al. Investigation of the mechanism responsible for the photoluminescence enhancement with Li (+) co-doping in highly thermally stable white-emitting Sr8ZnSc(PO4)(7):Dy3+ phosphor[J]. JOURNAL OF LUMINESCENCE,2017,187:160-168.
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