Dynamic multicolor emissions of multimodal phosphors by Mn2+ trace doping in self-activated CaGa4O7

Yiqian Tang, Yiyu Cai, Kunpeng Dou, Jianqing Chang, Wei Li, Shanshan Wang, Mingzi Sun, Bolong Huang (), Xiaofeng Liu, Jianrong Qiu, Lei Zhou, Mingmei Wu and Jun-Cheng Zhang ()
Additional contact information
Yiqian Tang: Ocean University of China
Yiyu Cai: Ocean University of China
Kunpeng Dou: Ocean University of China
Jianqing Chang: Ocean University of China
Wei Li: Ocean University of China
Shanshan Wang: Ocean University of China
Mingzi Sun: The Hong Kong Polytechnic University
Bolong Huang: The Hong Kong Polytechnic University
Xiaofeng Liu: Zhejiang University
Jianrong Qiu: Zhejiang University
Lei Zhou: Sun Yat-sen University
Mingmei Wu: Sun Yat-sen University
Jun-Cheng Zhang: Ocean University of China

Nature Communications, 2024, vol. 15, issue 1, 1-15

Abstract: Abstract The manipulation of excitation modes and resultant emission colors in luminescent materials holds pivotal importance for encrypting information in anti-counterfeiting applications. Despite considerable achievements in multimodal and multicolor luminescent materials, existing options generally suffer from static monocolor emission under fixed external stimulation, rendering them vulnerability to replication. Achieving dynamic multimodal luminescence within a single material presents a promising yet challenging solution. Here, we report the development of a phosphor exhibiting dynamic multicolor photoluminescence (PL) and photo-thermo-mechanically responsive multimodal emissions through the incorporation of trace Mn2+ ions into a self-activated CaGa4O7 host. The resulting phosphor offers adjustable emission-color changing rates, controllable via re-excitation intervals and photoexcitation powers. Additionally, it demonstrates temperature-induced color reversal and anti-thermal-quenched emission, alongside reproducible elastic mechanoluminescence (ML) characterized by high mechanical durability. Theoretical calculations elucidate electron transfer pathways dominated by intrinsic interstitial defects and vacancies for dynamic multicolor emission. Mn2+ dopants serve a dual role in stabilizing nearby defects and introducing additional defect levels, enabling flexible multi-responsive luminescence. This developed phosphor facilitates evolutionary color/pattern displays in both temporal and spatial dimensions using readily available tools, offering significant promise for dynamic anticounterfeiting displays and multimode sensing applications.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/s41467-024-47431-0 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-47431-0

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-47431-0

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().