Photoluminescence,photo-stimulated luminescence and thermoluminescence properties of CaB2O4 crystals activated with Ce3+ |
| |
| Affiliation: | 1. Tohoku University, 6-6-04, Aramaki Aza Aoba Aoba-ku, Sendai, Miyagi 980-8579, Japan;2. Kyushu Institute of Technology, 2-4, Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan;1. Depto. de Física de Materiales, C-04, Universidad Autónoma de Madrid, Avda. Francisco Tomás y Valiente 7, 28049 Madrid, Spain;2. Instituto de Ciencia de Materiales de Sevilla, CSIC-US, C/Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, Spain;1. Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan;2. Japan Synchrotron Radiation Research Institute (JASRI/SPring-8), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan;1. Department of Applied Physics and I3A, Faculty of Sciences, University of Zaragoza, C/P. Cerbuna 12, 50009 Zaragoza, Spain;2. Department Basis of Electronics, Optoelectronics and Optical Integrated Components Group, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, Romania;1. Institute for Materials Research, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan;2. NICHe, Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan;3. Institute of Physics AS CR, Cukrovarnicka 10, Prague 6, 16200, Czech Republic;4. C&A Corporation, 6-6-40 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan;1. Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Department of Physics, Faculty of Science, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom |
| |
| Abstract: | Photoluminescence (PL), photo-stimulated luminescence (PSL), and thermoluminescence (TL) properties of a Ce-doped CaB2O4 crystal were studied. The Ce-doped crystal was prepared by the simple solidification method using a Pt crucible under nitrogen atmosphere. A PL emission band in the 350–370 nm wavelength range was obtained under excitation at 325 nm owing to the 5d (t2g)–4f (2F5/2, 2F7/2)-allowed transition of the Ce3+ emission center. The fluorescence quantum efficiency and the decay time of Ce3+ were estimated to be about 70% and 29 ns, respectively. The 5d–4f emission band of Ce3+ also appeared in the 350–370 nm wavelength range in the TL and PSL spectra. Good linear TL and PSL responses were observed in the 1–1000 mGy and 1–10,000 mGy X-ray dose range, respectively. |
| |
| Keywords: | Photo-stimulated luminescence Thermoluminescence |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
