兰州大学机构库
Time-dependent multicolor evolution of photoluminescence and afterglow in lanthanide-doped gallate
Yang, Yuzhu1; Zhang, Peng1,2; Xie, Wanying2; Lin, Zenggang1; Miao, Xuan1; Li, Sixia1; Wang, Haining1; Liu, Weisheng1,2
2023-11-15
Online publication date2023-10
Source PublicationCHEMICAL ENGINEERING JOURNAL   Impact Factor & Quartile
ISSN1385-8947 ; 1873-3212
EISSN1873-3212
Volume476
page numbers8
AbstractThe general stimulus-responsive color modulation method requires both strict control of microstructures and continuous adjustment of specific stimuli conditions to externally manipulate emission color for scientific research and applications. Herein, by hierarchically utilizing the energy transfer processes from traps to luminescent centers, a possible mechanism for the dynamic multicolor evolution in a single material is proposed. This mechanism explains the fundamental principle of the dynamic photochromic behavior and afterglow color variation. A series of Sr3Ga4O9:Ln3+ (SGO, Ln = Dy, Tb, Pr, Sm) phosphors with dynamic photoluminescence (PL) and afterglow color that change over time under a fixed stimulus were developed using the mechanism as a basis for experimental design. The PL dynamically transformed from orange, green or red to blue under 254 nm irradiation in seconds and reversed from blue to orange, green or red after the excitation source was removed. Finally, based on distinctive luminescence properties, their potential application in optical encryption and optical anticounterfeiting was also methodically investigated.
KeywordTime-dependent Photochromic Dynamic afterglow Electron tunneling Thermal activation
PublisherELSEVIER SCIENCE SA
DOI10.1016/j.cej.2023.146487
Indexed BySCIE
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
WOS IDWOS:001094870500001
Original Document TypeArticle
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/569266
Collection兰州大学
Corresponding AuthorLiu, Weisheng
Affiliation
1.Lanzhou Univ, Coll Chem & Chem Engn, Key Lab Nonferrous Met Chem & Resources, Utilizat Gansu Prov & State Key Lab Appl Organ Che, Lanzhou 730000, Peoples R China;
2.Hechi Univ, Coll Chem & Biol Engn, Yizhou 546300, Peoples R China
Recommended Citation
GB/T 7714
Yang, Yuzhu,Zhang, Peng,Xie, Wanying,et al. Time-dependent multicolor evolution of photoluminescence and afterglow in lanthanide-doped gallate[J]. CHEMICAL ENGINEERING JOURNAL,2023,476.
APA Yang, Yuzhu.,Zhang, Peng.,Xie, Wanying.,Lin, Zenggang.,Miao, Xuan.,...&Liu, Weisheng.(2023).Time-dependent multicolor evolution of photoluminescence and afterglow in lanthanide-doped gallate.CHEMICAL ENGINEERING JOURNAL,476.
MLA Yang, Yuzhu,et al."Time-dependent multicolor evolution of photoluminescence and afterglow in lanthanide-doped gallate".CHEMICAL ENGINEERING JOURNAL 476(2023).
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