Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2025 Aug;35(8):7001-7010.
doi: 10.1007/s10895-024-04061-5. Epub 2024 Dec 7.

Study of Photoluminescence and Thermoluminescence Properties of Tb3+ Doped Green Emitting YPO4 Nanophosphors

Khundrakpam Chanchan Devi  1 , Ritesh Hemam  2 , S Dorendrajit Singh  3
Affiliations

Study of Photoluminescence and Thermoluminescence Properties of Tb3+ Doped Green Emitting YPO4 Nanophosphors

Khundrakpam Chanchan Devi et al. J Fluoresc. 2025 Aug.

Abstract

YPO4 nanophosphors doped with different concentrations of Tb3+ were synthesized using conventional co-precipitation method. The crystalline as well structural features were studied by using powder X-ray diffraction (PXRD) as well as Transmission electron microscope (TEM) images, which revealed highly crystalline nature of the prepared samples having particle sizes of around 40 nm. EDAX spectrum also shows the elemental composition of the synthesized nanoparticles which contain Y, P, O, Tb3+as expected. Prepared samples showed emission peaks at 491, 545, 588 and 624 nm under UV excitation having excitation wavelengths of 223 and 320 nm. The Commission International de I'Eclairage (CIE)study shows the chromaticity co-ordinates for the 600oC annealed samples to be x = 0.239, y = 0.4 which corresponds to cool greenish light suggesting the potential applications of the prepared nanophosphor in white light emitting diodes converted from green phosphors, optical display setups and PDP applications. Thermoluminescence (TL) study was carried out after exposing the samples 5at.wt% Tb3+ doped YPO4 to gamma radiations. Kinetic parameters were calculated using Deconvolution method.

Keywords: CIE chromaticity; Co-precipitation; Emission; Lifetime; Photoluminescence; Thermoluminescence.

PubMed Disclaimer

Conflict of interest statement

Declarations. Competing Interests: The authors declare no competing interests.

References

    1. Yaiphaba N, Ningthoujam RS, Singh NR, Vatsa RK (2010) Luminescence properties of redispersible Tb3+-Doped GdPO 4 nanoparticles prepared by an ethylene glycol route. Eur J Inorg Chem 2682–2687. https://doi.org/10.1002/ejic.200900968
    1. K. A, Soni et al (2020) Smart YPO 4: Er – Yb nanophosphor for optical heating, hyperthermia, security ink, cancer endoradiotherapy, and uranyl recovery. https://doi.org/10.1021/acsanm.0c03198
    1. Kahouadji B et al (2019) Annealing effect on the photoluminescence properties of Ce3 + doped YPO4 nanophosphors. Opt Mater (Amst) 91:35–41 - DOI
    1. Palan CB, Bajaj NS, Koparkar KA, Soni A, Omanwar S (2016) K. TL/OSL properties of Green emitting LiMgPO4:Tb3+, B (LMPTB) phosphor for Radiation Dosimetry. J Inorg Organomet Polym Mater 26:845–854 - DOI
    1. Yu X, Zhang H, Yu J (2021) Luminescence anti-counterfeiting: from elementary to advanced. Aggregate 2:20–34 - DOI

LinkOut - more resources