兰州大学机构库
Insights into blue-light activated red-emitting persistent luminescence from Pr3+-doped phosphors
Meng, Zikai1,2,3; Guo, Zhen1,2,3; Cao, Jiajia1; Li, Zihui1; Zhu, Jihua1,2,3; Wang, Zhenbin1,2,3; Ma, Cunhua1,2,3; Zhang, Mingjin1,2,3; Liu, Weisheng1,2,3,4,5
2023-08-22
Online publication date2023-07
Source PublicationDALTON TRANSACTIONS   Impact Factor & Quartile
ISSN1477-9226 ; 1477-9234
Volume52Issue:33Pages:11649-11657
page numbers9
AbstractIn recent years, a series of persistent luminescence materials excitable by blue light have been developed and widely used in many fields such as optical information storage, AC-LEDs, anti-counterfeiting and bio-imaging. However, it is still a long-standing challenge to develop a superior red-emitting persistent phosphor that can be efficiently excited by blue light. In this work, a novel blue-light excited red-emitting persistent phosphor CaCd2Ga2Ge3O12:Pr3+ was successfully synthesized by using a solid-state method, showing excellent luminescence properties. Moreover, the phase purity, crystal structure, photoluminescence spectra, afterglow emission spectra, and three-dimensional thermoluminescence spectrum were successfully investigated. Under 294 nm excitation, photoluminescence spectra show a single orange emission and a series of peaks centered at 492, 537, 568, 614 and 664 nm, which correspond to the P-3(0) & RARR; H-3(4), P-3(0) & RARR; H-3(5), P-3(2) & RARR; H-3(6), D-1(2) & RARR; H-3(4), and P-3(0) & RARR; F-3(2) transitions of Pr3+, respectively. Interestingly, after blue light excitation, the afterglow luminescence exhibits red long emission, which is attributed to the D-1(2) & RARR; H-3(4) transition of Pr3+. Through thermoluminescence spectra and three-dimensional thermoluminescence spectra, we analyze the reasons for the different colors of photoluminescence and afterglow luminescence. The results imply that there are two types of traps, and the depth of shallow traps and deep traps is calculated to be 0.684 and 0.776 eV, respectively. It is worth noting that the photoluminescence is attributed to the 4f(2) & RARR; 4f5d and f & RARR; f transitions of Pr3+, and the afterglow luminescence is ascribed to a tunneling-related process and the transition of electrons from the valence band to the conduction band. The obtained red-emitting persistent phosphors provide a promising pathway toward AC-LEDs, multi-cycle bio-imaging and other fields.
PublisherROYAL SOC CHEMISTRY
DOI10.1039/d3dt01112g
Indexed BySCIE
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Inorganic & Nuclear
WOS IDWOS:001044042700001
Original Document TypeArticle
PMID 37552091
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/568844
Collection兰州大学
Corresponding AuthorWang, Zhenbin; Zhang, Mingjin; Liu, Weisheng
Affiliation
1.Qinghai Normal Univ, Sch Chem & Chem Engn, Xining 810008, Peoples R China;
2.Peoples Govt Qinghai Prov, Acad Plateau Sci & Sustainabil, Xining 810016, Peoples R China;
3.Beijing Normal Univ, Xining 810016, Peoples R China;
4.Lanzhou Univ, Coll Chem & Chem Engn, Key Lab Nonferrous Met Chem & Resources Utilizat G, Lanzhou 730000, Peoples R China;
5.Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
Recommended Citation
GB/T 7714
Meng, Zikai,Guo, Zhen,Cao, Jiajia,et al. Insights into blue-light activated red-emitting persistent luminescence from Pr3+-doped phosphors[J]. DALTON TRANSACTIONS,2023,52(33):11649-11657.
APA Meng, Zikai.,Guo, Zhen.,Cao, Jiajia.,Li, Zihui.,Zhu, Jihua.,...&Liu, Weisheng.(2023).Insights into blue-light activated red-emitting persistent luminescence from Pr3+-doped phosphors.DALTON TRANSACTIONS,52(33),11649-11657.
MLA Meng, Zikai,et al."Insights into blue-light activated red-emitting persistent luminescence from Pr3+-doped phosphors".DALTON TRANSACTIONS 52.33(2023):11649-11657.
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