[1] [1] KIM J S, JEON P E, CHOI J C, et al. Warm-white-light emitting diode utilizing a single-phase full-color Ba3MgSi2O8∶Eu2+, Mn2+ phosphor［J］. Applied Physics Letters, 2004, 84(15): 2931-2933.

[2] [2] OH J R, CHO S H, LEE Y H, et al. Enhanced forward efficiency of Y3Al5O12∶Ce3+ phosphor from white light-emitting diodes using blue-pass yellow-reflection filter［J］. Optics Express, 2009, 17(9): 7450-7457.

[3] [3] JANG H S, KIM H Y, KIM Y S, et al. Yellow-emitting γ-Ca2SiO4∶Ce3+, Li+ phosphor for solid-state lighting: luminescent properties, electronic structure, and white light-emitting diode application［J］. Optics Express, 2012, 20(3): 2761.

[4] [4] GEORGE N C, DENAULT K A, SESHADRI R. Phosphors for solid-state white lighting［J］. Annual Review of Materials Research, 2013, 43(1): 481-501.

[5] [5] ZHANG X G, CHEN Y B, ZHOU L Y, et al. Synthesis of a broad-band excited and multicolor tunable phosphor Gd2SiO5∶Ce3+, Tb3+, Eu3+ for near-ultraviolet light-emitting diodes［J］. Industrial & Engineering Chemistry Research, 2014, 53(16): 6694-6698.

[6] [6] ZHAO C, WU Y H, WANG D H, et al. A near-ultraviolet (NUV) converting blue-violet Mg2SiO4∶Ce3+ phosphor for white light-emitting-diodes (w-LEDs)［J］. Journal of Luminescence, 2019, 207: 241-245.

[7] [7] LIU Q, XIONG P X, LIU X Q, et al. Deep red SrLaGa3O7∶Mn4+ for near ultraviolet excitation of white light LEDs［J］. Journal of Materials Chemistry C, 2021, 9(11): 3969-3977.

[8] [8] CHEN H, LIN H, HUANG Q M, et al. A novel double-perovskite Gd2ZnTiO6∶Mn4+red phosphor for UV-based w-LEDs: structure and luminescence properties［J］. Journal of Materials Chemistry C, 2016, 4(12): 2374-2381.

[9] [9] LEE S H, CHA Y, KIM H, et al. Luminescent properties of Eu3+-activated Gd2ZnTiO6 double perovskite red-emitting phosphors for white light-emitting diodes and field emission displays［J］. RSC Advances, 2018, 8(20): 11207-11215.

[10] [10] JI C Y, HUANG Z, WEN J, et al. Blue-emitting Bi-doped double perovskite Gd2ZnTiO6 phosphor with near-ultraviolet excitation for warm white light-emitting diodes［J］. Journal of Alloys and Compounds, 2019, 788: 1127-1136.

[11] [11] DING N, LIU Q, WANG L X, et al. Synthesis and luminescence properties of double perovskite Gd2MgTiO6∶Eu3+ red phosphors for white light-emitting diodes［J］. Journal of Materials Science: Materials in Electronics, 2018, 29(5): 4122-4127.

[12] [12] LI J Q, LIAO J S, WEN H R, et al. Multiwavelength near infrared downshift and downconversion emission of Tm3+ in double perovskite Y2MgTiO6∶Mn4+/Tm3+ phosphors via resonance energy transfer［J］. Journal of Luminescence, 2019, 213: 356-363.

[13] [13] XIE J H, DING N, LI X B, et al. Luminescence properties of double perovskite Gd2MgTiO6∶Tb3+ phosphors by solid-state reaction method［J］. Journal of Materials Science: Materials in Electronics, 2019, 30(19): 17923-17932.

[15] [15] DUTTA S, SOM S, SHARMA S K. Excitation spectra and luminescence decay analysis of K+ compensated Dy3+ doped CaMoO4 phosphors［J］. RSC Advances, 2015, 5(10): 7380-7387.

[18] [18] CHEN W, LIU Z C, SHEN L L, et al. Design and energy transfer mechanism for single-phased Gd2MgTiO6∶Bi3+, Eu3+ tunable white light-emitting phosphors［J］. Journal of Materials Science, 2019, 54(5): 4056-4072.

[19] [19] YUAN H L, HUANG Z Z, XU L Y, et al. La2MgTiO6∶Bi3+/Mn4+ photoluminescence materials: molten salt preparation, Bi3+ → Mn4+ energy transfer and thermostability［J］. Journal of Luminescence, 2020, 224: 117290.

[20] [20] DAS N, NATH M A, THAKUR G S, et al. Monoclinically distorted perovskites, A2ZnTiO6 (A=Pr, Gd): rietveld refinement, and dielectric studies［J］. Journal of Solid State Chemistry, 2015, 229: 97-102.

[21] [21] BLASSE G, BRIL A. Energy transfer in Tb3+-activated cerium(Ⅲ) compounds［J］. The Journal of Chemical Physics, 1969, 51(8): 3252-3254.

[22] [22] BLASSE G. Energy transfer between inequivalent Eu2+ ions［J］. Journal of Solid State Chemistry, 1986, 62(2): 207-211.

[23] [23] DEXTER D L, SCHULMAN J H. Theory of concentration quenching in inorganic phosphors［J］. The Journal of Chemical Physics, 1954, 22(6): 1063-1070.