M-S Wang, S-P Guo, Y Li, et al. A direct white-light-emitting metal-organic framework with tunable yellow-to-white photoluminescence by variation of excitation light. J Am Chem Soc 2009, 131: 13572-13573.
R Cao, Q Xiong, W Luo, et al. Synthesis and luminescence properties of efficient red phosphors SrAl4O7:Mn4+,R+ (R+ = Li+, Na+, and K+) for white LEDs. Ceram Int 2015, 41: 7191-7196.
J Chen, Y-G Liu, L Mei, et al. Emission red shift and energy transfer behavior of color-tunable KMg4(PO4)3: Eu2+,Mn2+ phosphors. J Mater Chem C 2015, 3: 5516- 5523.
X Zhao, Y Ding, Z Li, et al. An efficient charge compensated red phosphor Sr3WO6:K+,Eu3+—For white LEDs. J Alloys Compd 2013, 553: 221-224.
Z Xia, J Zhou, Z Mao. Near UV-pumped green-emitting Na3(Y,Sc)Si3O9:Eu2+ phosphor for white-emitting diodes. J Mater Chem C 2013, 1: 5917-5924.
V Singh, G Sivaramaiah, JL Rao, et al. Optical and EPR properties of BaAl12O19:Eu2+,Mn2+ phosphor prepared by facile solution combustion approach. J Lumin 2015, 157: 74-81.
D Ravichandran, ST Johnson, S Erdei, et al. Crystal chemistry and luminescence of the Eu2+-activated alkaline earth aluminate phosphors. Displays 1999, 19: 197-203.
JMPJ Verstegen, ALN Stevels. The relation between crystal structure and luminescence in β-alumina and magnetoplumbite phases. J Lumin 1974, 9: 406-414.
L Xiao, M He, Y Tian, et al. Study on luminescence properties of Eu2+ in BaAl12O19 matrix. J Nanosci Nanotechno 2010, 10: 2131-2134.
HS Jeon, SK Kim, HL Park, et al. Observation of two independent energy transfer mechanisms in BaAl12O19: Ce0.063++Eux2+ phosphor. Solid State Commun 2001, 120: 221-225.
AD Deshmukh, SJ Dhoble, NS Dhoble. Optical properties of MAl12O19:Eu (M = Ca, Ba, Sr) nanophosphors. Adv Mat Lett 2011, 2: 38-42.
Y Xiong, Y-H Wang, Z-F Hu, et al. Luminescence properties of Eu,Dy doped BaAl12O19 long afterglow phosphors. Spectrosc Spect Anal 2012, 32: 614-618.
R Mi, C Zhao, Z Xia. Synthesis, structure, and tunable luminescence properties of novel Ba3NaLa(PO4)3F: Eu2+,Mn2+ phosphors. J Am Ceram Soc 2014, 97: 1802-1808.
JS Kim, PE Jeon, JC Choi, et al. Warm-white-light emitting diode utilizing a single-phase full-color Ba3MgSi2O8:Eu2+,Mn2+ phosphor. Appl Phys Lett 2004, 84: 2931-2933.
Z Pei, Q Su. The valence change from RE3+ to RE2+ (RE = Eu, Sm, Yb) in SrB4O7:RE prepared in air and the spectral properties of RE2+. J Alloys Compd 1993, 198: 51-53.
Q Zeng, Z Pei, S Wang, et al. The reduction of Eu3+ in SrB6O10 prepared in air and the luminescence of SrB6O10:Eu. J Alloys Compd 1998, 275-277: 238-241.
Z Pei, Q Zeng, Q Su. A study on the mechanism of the abnormal reduction of Eu3+→Eu2+ in Sr2B5O9Cl prepared in air at high temperature. J Solid State Chem 1999, 145: 212-215.
M Peng, Z Pei, G Hong, et al. The reduction of Eu3+ to Eu2+ in BaMgSiO4:Eu prepared in air and the luminescence of BaMgSiO4:Eu2+ phosphor. J Mater Chem 2003, 13: 1202-1205.
M Peng, Z Pei, G Hong, et al. Study on the reduction of Eu3+→Eu2+, in Sr4Al14O25:Eu prepared in air atmosphere. Chem Phys Lett 2003, 371: 1-6.
J Chen, Y Liu, H Liu, et al. Tunable SrAl2Si2O8:Eu phosphor prepared in air via valence state-controlled means. Opt Mater 2015, 42: 80-86.
Z Lian, J Wang, Y Lv, et al. The reduction of Eu3+ to Eu2+ in air and luminescence properties of Eu2+ activated ZnO-B2O3-P2O5 glasses. J Alloys Compd 2007, 430: 257-261.
V Singh, RPS Chakradhar, JL Rao, et al. Luminescence and EPR studies of Eu2+ doped BaAl12O19 blue light emitting phosphors. J Lumin 2010, 130: 703-708.
M Peng, J Qiu, I Yang, et al. Observation of Eu3+→Eu2+ in barium hexa-aluminates with β’ or β-alumina structures prepared in air. Opt Mater 2004, 27: 591-595.
J Chen, Y Liu, H Liu, et al. The luminescence properties of novel α-Mg2Al4Si5O18:Eu2+ phosphor prepared in air. RSC Adv 2014, 4: 18234-18239.
M Peng, G Hong. Reduction from Eu3+ to Eu2+ in BaAl2O4:Eu phosphor prepared in an oxidizing atmosphere and luminescent properties of BaAl2O4:Eu. J Lumin 2007, 127: 735-740.
SJ Dhoble, SK Raut, NS Dhoble. Synthesis and photoluminescence characteristics of rare earth activated some silicate phosphors for LED and display devices. International Journal of Luminescence and Applications 2015, 5: 178-182.
AK Parchur, RS Ningthoujam. Behaviour of electric and magnetic dipole transitions of Eu3+, 5D0→7F0 and Eu-O charge transfer band in Li+ co-doped YPO4: Eu3+. RSC Adv 2012, 2: 10859-10868.
HC Swart, JJ Terblans, OM Ntwaeaborwa, et al. Applications of AES, XPS and TOF SIMS to phosphor materials. Surf Interface Anal 2014, 46: 1105-1109.
S Liu, G Zhao, W Ruan, et al. Reduction of Eu3+ to Eu2+ in aluminoborosilicate glasses prepared in air. J Am Ceram Soc 2008, 91: 2740-2742.
S Shi, J Gao, J Zhou. Effects of charge compensation on the luminescence behavior of Eu3+ activated CaWO4 phosphor. Opt Mater 2008, 30: 1616-1620.
YQ Li, G de With, H Hintzen. Luminescence properties of Ce3+-activated alkaline earth silicon nitride M2Si5N8 (M = Ca, Sr, Ba) materials. J Lumin 2006, 116: 107-116.
B Gruber. Theory of Crystal Defects. New York: Academia Press, 1966.
ZW Zhang, XJ Wang, YJ Ren. Enhanced red emission in Ca2.96Eu0.04(PO4)2 phosphor by charge compensation. Chinese Journal of Luminescence 2014, 35: 1071-1075. (in Chinese)
Q Su, QH Zeng, ZW Pei. Preparation of borates doped with divalent rare earth ions (RE2+) in air and spectroscopy of divalent rare earth ions (RE2+ = Sm, Eu, Tm, Yb). Chinese Journal of Inorganic Chemistry 2000, 16: 293-298. (in Chinese)
MVS Rezende, MEG Valerio, RA Jackson. Study of Eu3+→Eu2+ reduction in BaAl2O4:Eu prepared in different gas atmospheres. Mater Res Bull 2014, 61: 348-351.
D Wang, Q Yin, Y Li, et al. Concentration quenching of Eu2+ in SrO·6Al2O3:Eu2+ phosphor. J Mater Sci 2002, 37: 381-383.
Z Zhou, Y Yu, X Liu, et al. Luminescence enhancement of CaMoO4:Eu3+ phosphor by charge compensation using microwave sintering method. J Adv Ceram 2015, 4: 318-325.
G Blasse, WL Wanmaker, JW ter Vrugt, et al. Fluorescence of Eu2+ activated silicates. Philips Res Rep 1968, 23: 189-200.
B Henderson, GF Imbusch. Optical Spectroscopy of Inorganic Solids. Clarendon: Clarendon Press, 1989.
D-Y Wang, C-H Huang, Y-C Wu, et al. BaZrSi3O9:Eu2+: A cyan-emitting phosphor with high quantum efficiency for white light-emitting diodes. J Mater Chem 2011, 21: 10818-10822.
D Geng, G Li, M Shang, et al. Color tuning via energy transfer in Sr3In(PO4)3:Ce3+/Tb3+/Mn2+ phosphors. J Mater Chem 2012, 22: 14262-14271.
Y Xia, J Chen, Y-G Liu, et al. Luminescence properties and energy transfer in K2MgSiO4:Ce3+,Tb3+ as a green phosphor. Mater Express 2016, 6: 37-44.
R Mi, J Chen, Y Liu, et al. Luminescence and energy transfer of a color tunable phosphor: Tb3+ and Eu3+ co-doped ScPO4. RSC Adv 2016, 6: 28887-28894.
Z Xia, R-S Liu, K-W Huang, et al. Ca2Al3O6F:Eu2+: A green-emitting oxyfluoride phosphor for white light-emitting diodes. J Mater Chem 2012, 22: 15183-15189.
R-J Xie, N Hirosaki, N Kimura, et al. 2-phosphor-converted white light-emitting diodes using oxynitride/ nitride phosphors. Appl Phys Lett 2007, 90: 191101.