兰州大学机构库
A novel narrow-band blue-emitting phosphor with high efficiency and thermal stability for WLEDs and FEDs
Zhang, Qiang1,2; Ding, Xin3; Wang, Haoyang2; Liu, Bin1; Wang, Yuhua2
2023-11-09
Online publication date2023-10
Source PublicationJournal of Materials Chemistry C   Impact Factor & Quartile
ISSN2050-7526 ; 2050-7534
EISSN2050-7534
Volume11Issue:43Pages:15366-15375
page numbers10
AbstractFor white light-emitting diodes (WLEDs), compared with the method of yellow-emitting Y3Al5O12:Ce3+ phosphor pumped by a blue LED chip, tricolor phosphors combined with a near-ultraviolet (n-UV) LED chip have been regarded as a better candidate to improve the output-light performances and avoid the severe blue-light hazard. Yet, high-grade phosphors with strong absorption in the n-UV region, high efficiency and thermal stability are extremely scarce. Inspired by the mineral prototype strategy and substitution engineering, a novel Eu2+-doped Na3KMg6ZnP6O24 phosphor has been designed and developed for the first time. Its crystal structure, luminescence properties, potential application for WLEDs and cathodoluminescence properties have been studied systematically. The phosphor shows strong response to the irradiation of n-UV light and emits bright blue light peaking at 444 nm with a full width at half-maximum (FWHM) of 53 nm. The optimal Na3KMg6ZnP6O24:0.02Eu2+ sample has a high quantum efficiency of 90.2%. Interestingly, the phosphor displays zero-thermal quenching behavior, which is extremely required for high-power WLEDs. The fabricated WLED lamp can exhibit superior electroluminescence properties by using the as-prepared Na3KMg6ZnP6O24:Eu2+ phosphor as a blue-emitting component. Furthermore, the phosphor can generate stable blue light under the bombardment of electron beam. All the results suggest that the obtained phosphor can be promising in developing both WLEDs and FEDs. This work provides a new insight to design novel luminescent materials with excellent performances. In this work, a novel narrow-band blue-emitting phosphor with high efficiency and thermal stability has been designed and prepared.
PublisherROYAL SOC CHEMISTRY
DOI10.1039/d3tc03420h
Indexed BySCIE
Language英语
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:001087895700001
Original Document TypeArticle
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/569252
Collection兰州大学
Corresponding AuthorLiu, Bin; Wang, Yuhua
Affiliation
1.Lanzhou Univ, Sch Stomatol, Lanzhou, Peoples R China;
2.Lanzhou Univ, Sch Mat & Energy, Natl & Local Joint Engn Lab Opt Convers Mat & Tech, Dept Mat Sci,Natl Dev & Reform Commiss, Lanzhou, Peoples R China;
3.Qingdao Univ, Coll Mat Sci & Engn, Ningxia Rd 308, Qingdao 266071, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Qiang,Ding, Xin,Wang, Haoyang,et al. A novel narrow-band blue-emitting phosphor with high efficiency and thermal stability for WLEDs and FEDs[J]. Journal of Materials Chemistry C,2023,11(43):15366-15375.
APA Zhang, Qiang,Ding, Xin,Wang, Haoyang,Liu, Bin,&Wang, Yuhua.(2023).A novel narrow-band blue-emitting phosphor with high efficiency and thermal stability for WLEDs and FEDs.Journal of Materials Chemistry C,11(43),15366-15375.
MLA Zhang, Qiang,et al."A novel narrow-band blue-emitting phosphor with high efficiency and thermal stability for WLEDs and FEDs".Journal of Materials Chemistry C 11.43(2023):15366-15375.
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