Processing and valence-dependent photoluminescence of (Tb1Eu )3Al5O12 garnet phosphors (x=0.0025–0.05)
作者： Jun Bi , Qi Zhu , Xiaodong Li , Jialin Chen , Xudong Sun
DOI: 10.1016/J.MATERRESBULL.2019.110577
关键词:
摘要: Abstract Calcination of coprecipitated precursors at 1500 °C in air produced (Tb1-xEux)3Al5O12 garnet phosphors (x = 0.0025-0.05) that exhibit dominant excitations via 4f8 → 4f75d1 (E1-4) and 7F6 5D3,4 transitions Tb3+ negligible excitation Eu3+. Exciting the with 275 nm light (E2 transition Tb3+) typical 5D0 7FJ red emissions Annealing x = 0.03 sample hydrogen reduced ∼62.8% Eu3+ to Eu2+ yielded a cyan phosphor simultaneously exhibits luminescence (red), (green) (broad-band, 400–725 nm) under 327 nm (E1 Tb3+). The (Tb0.97Eu0.03)AG optimal calcined were assayed have external/internal quantum efficiencies (in percentage) ∼23.2/24.2 18.6/23.7, respectively. Luminescence features two types investigated detail, energy transfer among Tb3+, ions was discussed.
sci-hub.se 参考文章(41)
Y. Zorenko, T. Voznyak, V. Vistovsky, T. Zorenko, S. Nedilko, M. Batentschuk, A. Osvet, A. Winnacker, G. Zimmerer, V. Kolobanov, D. Spassky, Energy transfer to Ce3+ ions in Tb3Al5O12:Ce single crystalline films Radiation Measurements. ,vol. 42, pp. 648- 651 ,(2007) , 10.1016/J.RADMEAS.2007.01.059
Shuchao Xu, Panlai Li, Zhijun Wang, Ting Li, Qiongyu Bai, Jiang Sun, Zhiping Yang, Luminescence and energy transfer of Eu2+/Tb3+/Eu3+ in LiBaBO3 phosphors with tunable-color emission Journal of Materials Chemistry C. ,vol. 3, pp. 9112- 9121 ,(2015) , 10.1039/C5TC01577D
Yoejin Kim, Sangmoon Park, Eu2+, Mn2+ co-doped Ba9Y2Si6O24 phosphors based on near-UV-excitable LED lights Materials Research Bulletin. ,vol. 49, pp. 469- 474 ,(2014) , 10.1016/J.MATERRESBULL.2013.09.035
Yu Zorenko, V. Gorbenko, Ja Vasylkiv, A. Zelenyj, A. Fedorov, R. Kucerkova, J.A. Mares, M. Nikl, P. Bilski, A. Twardak, Growth and luminescent properties of scintillators based on the single crystalline films of Lu3−xGdxAl5O12:Ce garnet Materials Research Bulletin. ,vol. 64, pp. 355- 363 ,(2015) , 10.1016/J.MATERRESBULL.2015.01.020
Ming-Shyong Tsai, Guang-Mau Liu, Shyan-Lung Chung, Fabrication of cerium active terbium aluminum garnet (TAG:Ce) phosphor powder via the solid-state reaction method Materials Research Bulletin. ,vol. 43, pp. 1218- 1222 ,(2008) , 10.1016/J.MATERRESBULL.2007.05.027
Yibo Chen, Jing Wang, Menglian Gong, Qiang Su, Comparative study on the synthesis, photoluminescence and application in InGaN-based light-emitting diodes of TAG:Ce3+ phosphors Journal of Solid State Chemistry. ,vol. 180, pp. 1165- 1170 ,(2007) , 10.1016/J.JSSC.2007.01.011
Y. Zorenko, V. Gorbenko, T. Voznyak, M. Batentschuk, A. Osvet, A. Winnacker, Luminescence and Tb3+-Ce3+-Eu3+ ion energy transfer in single-crystalline films of Tb3Al5O12:Ce,Eu garnet Journal of Luminescence. ,vol. 128, pp. 652- 660 ,(2008) , 10.1016/J.JLUMIN.2007.11.069
W. T. Carnall, P. R. Fields, K. Rajnak, Spectral Intensities of the Trivalent Lanthanides and Actinides in Solution. II. Pm3+, Sm3+, Eu3+, Gd3+, Tb3+, Dy3+, and Ho3+ Journal of Chemical Physics. ,vol. 49, pp. 4412- 4423 ,(1968) , 10.1063/1.1669892
H. S. Jang, Y.-H. Won, D. Y. Jeon, Improvement of electroluminescent property of blue LED coated with highly luminescent yellow-emitting phosphors Applied Physics B. ,vol. 95, pp. 715- 720 ,(2009) , 10.1007/S00340-009-3484-1
R. Vercaemst, D. Poelman, L. Fiermans, R.L. Van Meirhaeghe, W.H. Laflère, F. Cardon, A detailed XPS study of the rare earth compounds EuS and EuF3 Journal of Electron Spectroscopy and Related Phenomena. ,vol. 74, pp. 45- 56 ,(1995) , 10.1016/0368-2048(95)02349-6