Next Article in Journal
On Crystal Mosaicity in Single Crystal Ni-Based Superalloys
Previous Article in Journal
Radiation Tolerance in Nano-Structured Crystalline Fe(Cr)/Amorphous SiOC Composite
Previous Article in Special Issue
Different Roles of Ce3+ Optical Centers in Oxyorthosilicate Nanocrystals at X-ray and UV Excitation
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Crystals 2019, 9(3), 148;

Radio-, Thermo- and Photoluminescence Properties of Lu2O3:Eu and Lu2O3:Tb Nanopowder and Film Scintillators

Institute of Physics of Kazimierz Wielki University in Bydgoszcz, 85-090 Bydgoszcz, Poland
Faculty of Chemistry, University of Wroclaw, 50-383 Wroclaw, Poland
Authors to whom correspondence should be addressed.
Received: 22 February 2019 / Revised: 7 March 2019 / Accepted: 8 March 2019 / Published: 13 March 2019
(This article belongs to the Special Issue Crystals, Films and Nanocomposite Scintillators)
PDF [19446 KB, uploaded 13 March 2019]


This work is dedicated to the preparation and characterization of the radio-, thermo-, and photoluminescent properties of Lu2O3:Eu and Lu2O3:Tb nanopowder (NPs) scintillators, prepared by means of hydrothermal processing, and their film analogues made of these NPs by the spin coating method. The luminescent properties of NPs and films were characterized by cathodoluminescence (CL), photoluminescence (PL), X-ray excited radioluminescence (RL), and thermoluminescence (TL) at low and high temperatures. In Lu2O3:Eu NPs and films, mostly the luminescence of Eu3+ ions occupying the C2 site of the host, with the most intensive peaks at 611.6 nm and a decay time of 1.5 ms, was observed. On the contrary, two types of Tb3+ centers in the C2 and C3i sites with the main emission lines at 542.4 and 544.0 nm and the corresponding 4f→5d excitation bands at 270 and 305 nm and decay times of t1/e = 2.17 and 3.96 ms were observed in the case of Lu2O3:Tb NPs and films. Indications were noted that Tb3+ in the C3i symmetry position was most active in the CL spectra of Lu2O3:Tb NPs and a respective film. Thermoluminescent peaks at 110 °C and 170 °C for Lu2O3:Eu NPs and at 75 °C and 120 °C in Lu2O3:Tb NPs were observed corresponding to the hole and electron traps, respectively. Significantly different onsets of temperature quenching of Eu3+ and Tb3+ luminescence in Lu2O3:Eu and Lu2O3:Tb NPs were found at ~90 °C and ~320 °C, respectively. View Full-Text
Keywords: Lu2O3; Eu3+; Tb3+; luminescence; nanopowders; films; spin coating Lu2O3; Eu3+; Tb3+; luminescence; nanopowders; films; spin coating

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Popielarski, P.; Zeler, J.; Bolek, P.; Zorenko, T.; Paprocki, K.; Zych, E.; Zorenko, Y. Radio-, Thermo- and Photoluminescence Properties of Lu2O3:Eu and Lu2O3:Tb Nanopowder and Film Scintillators. Crystals 2019, 9, 148.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Crystals EISSN 2073-4352 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top