Enhancement of green emission from Tb3+:GdOBr phosphors with Ce3+ ion co-doping
Source abstract
Abstract
Abstract A strong green emission (5D4→7F5) has been observed from Tb3+ (1.0 mol%) doped into GdOBr powder phosphors upon excitation with an UV-wavelength (226 nm). To this phosphor, different amounts of Ce3+ (from 0.1 to 1.5 mol%) have been added to further improve the green emission efficiency of Tb3+-doped GdOBr. It has been found that the optimum concentration, 0.2 mol% of Ce3+, results in a twofold enhancement of the green emission intensity. The green emission from Tb3+ could not be increased at higher Ce3+ concentrations due to the Ce3+-Ce3+ ion interactions, i.e., the concentration quenching effect. The mechanism involved in the energy transfer between the Ce3+ and Tb3+ has been explained with an energy level diagram.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Radiation Detection and Scintillator Technologies · Ammonia Synthesis and Nitrogen Reduction
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
Show source-provided references
1. Sun · Appl. Phys. Lett. · 1998 · 72 · 52510.1063/1.120809 ↗
2. R.C. Ropp, The Chemistry of Artificial Lighting Devices: Lamps, Phosphors, and Cathode Ray Tubes, Elsevier, New York, 1993.
3. Blasse · 1994
4. Meng · Jpn. J. Appl. Phys. Lett. · 1999 · 38 · 140910.1143/JJAP.38.L1409 ↗
5. S. Baccaro, R. Dalligna, P. Fabeni, M. Martini, J.A. Mares, F. Meinardi, M. Nikl, K. Nitsch, G.P. Passi, P. Plato, C. Susini, A. Vedda, G. Zanella, R. Zannoni, J. Lumin. 87–89 (2000) 673.10.1016/S0022-2313(99)00353-1 ↗
6. Mazurak · J. Lumin. · 1999 · 82 · 16310.1016/S0022-2313(99)00028-9 ↗
7. Lin · Compd · 1995 · 225 · 12410.1016/0925-8388(94)07021-0 ↗
8. Choi · Mater. Res. Bull. · 1999 · 34 · 55110.1016/S0025-5408(99)00042-2 ↗
9. Fuxi · 1992
10. DiBartolo · 1976
11. M.J.F. Digonnet, Rare Earth Doped Fiber Lasers and Amplifiers, Marcel Dekker, Inc., New York, 1993.
12. Eljouhari · State Chem · 1996 · 123 · 39810.1006/jssc.1996.0195 ↗
13. Wang · Solid State Commun · 1995 · 94 · 30910.1016/0038-1098(94)00683-0 ↗
14. Chi · Acta Phys. Sinica (Overseas Edition) · 1997 · 6 · 42910.1088/1004-423X/6/6/005 ↗
15. Chi · Compd · 1997 · 256 · 110.1016/S0925-8388(96)03105-2 ↗
16. Erdei · L.E., Mater. Lett. · 1997 · 30 · 38910.1016/S0167-577X(96)00230-3 ↗
17. S. Buddhudu, M. Morita, S. Murakami, D. Rau, J. Lumin. 83–84 (1999) 199–203.10.1016/S0022-2313(99)00098-8 ↗
18. Zhou · Optics Commun · 2000 · 182 · 15110.1016/S0030-4018(00)00764-1 ↗
19. T. Justel, H. Nikol, C. Ronda, Angew. Che. Int. Ed. 37 (1998) 3084.10.1002/(SICI)1521-3773(19981204)37:22<3084::AID-ANIE3084>3.0.CO;2-W ↗