Source: http://aoot.osa.org/ome/abstract.cfm?uri=ome-9-4-1749
Timestamp: 2019-04-24 10:32:04+00:00

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High-brightness orangish red fluorescence emissions were captured in Eu3+ doped fluorophosphate (NBFP) glasses with outstanding rare earth (RE) ion solubility under laser excitation. Highly efficient emissions of Eu3+ doped NBFP glasses in the wavelength range of 580−720 nm make the phosphors potential candidates as a remarkable orangish red lighting source. The net emission power and the net emission photon number in 6.0wt% Eu2O3 doped NBFP glass were derived to be 6.48 mW and 2.08 × 1016 cps under the excitation of 465 nm laser with 53.46 mW optical power, respectively, and total measured quantum yield was as high as 54.03%. When the excitation power was increased to 561 mW, the luminous flux of 6.0wt% Eu2O3 doped NBFP glass was up to 31.21 lm, demonstrating that Eu3+ heavy-doped NBFP glasses are potential lighting source materials. Thus, the laser-driven high-brightness phosphors originating from the sufficient photon release of Eu3+ ions promote further development of orangish red lighting source.
J. Rocha, L. D. Carlos, F. A. A. Paz, and D. Ananias, “Luminescent multifunctional lanthanides-based metal-organic frameworks,” Chem. Soc. Rev. 40(2), 926–940 (2011).
M. Ozaki, J. Kato, and S. Kawata, “Surface-plasmon holography with white-light illumination,” Science 332(6026), 218–220 (2011).
S. Pleasants, “Animal vision: Colour perception,” Nat. Photonics 8(4), 267 (2014).
D. C. Zhou, R. F. Wang, X. J. He, J. Yi, Z. G. Song, Z. W. Yang, X. H. Xu, X. Yu, and J. Qiu, “Color-tunable luminescence of Eu3+ in PbF2 embedded in oxyfluoroborate glass and its nanocrystalline glass,” J. Alloys Compd. 621, 62–65 (2015).
S. L. Dong, S. Ye, L. L. Wang, X. Y. Chen, S. B. Yang, Y. J. Zhao, J. G. Wang, X. P. Jing, and Q. Y. Zhang, “Gd3B(W,Mo)O9:Eu3+ red phosphor: from structure design to photoluminescence behavior and near-UV white-LEDs performance,” J. Alloys Compd. 610, 402–408 (2014).
H. Rahimian, Y. Hatefi, A. D. Hamedan, and S. P. Shirmardi, “Structural and optical investigations on Eu 3+ doped fluorophosphate glass and nano glass-ceramics,” J. Non-Cryst. Solids 487, 46–52 (2018).
E. G. Rowse, S. Harris, and G. Jones, “The switch from low-pressure sodium to light emitting diodes does not affect bat activity at street lights,” PLoS One 11(3), e0150884 (2016).
O. Carrión, A. R. J. Curson, D. Kumaresan, Y. Fu, A. S. Lang, E. Mercadé, and J. D. Todd, “A novel pathway producing dimethylsulphide in bacteria is widespread in soil environments,” Nat. Commun. 6(1), 6579 (2015).
F. A. La Sorte, D. Fink, J. J. Buler, A. Farnsworth, and S. A. Cabrera-Cruz, “Seasonal associations with urban light pollution for nocturnally migrating bird populations,” Glob. Change Biol. 23(11), 4609–4619 (2017).
T. Cowan and G. Gries, “Ultraviolet and violet light: attractive orientation cues for the indian meal moth, plodia interpunctella,” Entomol. Exp. Appl. 131(2), 148–158 (2009).
J. Rajagukguk, J. Kaewkhao, M. Djamal, R. Hidayat, and Y. Ruangtaweep, “Structural and optical characteristics of Eu3+ ions in sodium-lead-zinc-lithium-borate glass system,” J. Mol. Struct. 1121, 180–187 (2016).
H. Segawa, N. Hirosaki, S. Ohki, K. Deguchi, and T. Shimizu, “Exploration of metaphosphate glasses dispersed with Eu-doped SiAlON for white LED applications,” Opt. Mater. 42, 399–405 (2015).
M. Kemere, J. Sperga, U. Rogulis, G. Krieke, and J. Grube, “Luminescence properties of Eu, RE3+ (RE= Dy, Sm, Tb) co-doped oxyfluoride glasses and glass-ceramics,” J. Lumin. 181, 25–30 (2017).
M. Zhu, X. Z. Song, S. Y. Song, S. N. Zhao, X. Meng, L. L. Wu, C. Wang, and H. J. Zhang, “A temperature-responsive smart europium metal-organic framework switch for reversible capture and release of intrinsic Eu3+ ions,” Adv. Sci. (Weinh.) 2(4), 1500012 (2015).
G. Galleani, Y. Ledemi, E. S. de Lima Filho, S. Morency, G. Delaizir, S. Chenu, J. R. Duclere, and Y. Messaddeq, “UV-transmitting step-index fluorophosphate glass fiber fabricated by the crucible technique,” Opt. Mater. 64, 524–532 (2017).
R. Balda, J. Fernández, J. L. Adam, and M. A. Arriandiaga, “Time-resolved fluorescence-line narrowing and energy-transfer studies in a Eu3+-doped fluorophosphate glass,” Phys. Rev. B Condens. Matter 54(17), 12076–12086 (1996).
R. J. Amjad, M. R. Dousti, M. R. Sahar, S. F. Shaukat, S. K. Ghoshal, E. S. Sazali, and N. Fakhra, “Silver nanoparticles enhanced luminescence of Eu3+-doped tellurite glass,” J. Lumin. 154(1), 316–321 (2014).
Q. Zhang, X. F. Liu, Y. B. Qiao, B. Qian, P. D. Guo, J. Ruan, Q. L. Zhou, J. R. Qiu, and D. P. Chen, “Reduction of Eu3+ to Eu2+ in Eu-doped high silica glass prepared in air atmosphere,” Opt. Mater. 32(3), 427–431 (2010).
G. H. Liu, J. T. Li, and L. Wu, “Preparation and optical properties of Eu-doped Y2O3−Al2O3−SiO2 glass,” Mater. Res. Bull. 48(10), 3934–3938 (2013).
G. Chu, X. S. Wang, T. R. Chen, W. Xu, Y. Wang, H. W. Song, and Y. Xu, “Chiral electronic transitions of YVO4: Eu3+ nanoparticles in cellulose based photonic materials with circularly polarized excitation,” J. Mater. Chem. C Mater. Opt. Electron. Devices 3(14), 3384–3390 (2015).
X. Li, H. Zhong, B. Chen, G. Sui, J. Sun, S. Xu, L. Cheng, and J. Zhang, “Highly stable and tunable white luminescence from Ag-Eu3+ co-doped fluoroborate glass phosphors combined with violet LED,” Opt. Express 26(2), 1870–1881 (2018).
B. J. R. S. Swamy, B. Sanyal, R. Vijay, P. R. Babu, D. K. Rao, and N. Veeraiah, “Influence of copper ions on thermoluminescence characteristics of CaF2–B2O3–P2O5, glass system,” Ceram. Int. 40(2), 3707–3713 (2014).
K. Binnemans, D. R. Van, C. Gorller-Walrand, and J. L. Adam, “Spectroscopic properties of trivalent lanthanide ions in fluorophosphate glasses,” J. Non-Cryst. Solids 238(1–2), 11–29 (1998).
T. Wei, F. Z. Chen, Y. Tian, and Q. S. Xu, “Efficient 2.7 μm emission and energy transfer mechanism in Er3+ doped Y2O3 and Nb2O5 modified germanate glasses,” J. Quant. Spectrosc. Ra. 133, 663–669 (2014).
M. Secu, C. E. Secu, and C. Ghica, “Eu-doped CaF2 nanocrystals in sol-gel derived glass-ceramics,” Opt. Mater. 33(4), 613–617 (2011).
V. Vijaya, V. Venkatramu, P. Babu, C. K. Jayasankar, U. R. Rodríguez-Mendoza, and V. Lavín, “Spectroscopic properties of Sm3+ ions in phosphate and fluorophosphate glasses,” J. Non-Cryst. Solids 365, 85–92 (2013).
T. S. Gonçalves, R. J. M. Silva, M. de Oliveira, C. R. Ferrari, G. Y. Poirier, H. Eckert, and A. S. S. de Camargo, “Structure-property relations in new fluorophosphate glasses singly-and co-doped with Er3+ and Yb3+,” Mater. Chem. Phys. 157, 45–55 (2015).
B. D. Wilts, T. M. Trzeciak, P. Vukusic, and D. G. Stavenga, “Papiliochrome II pigment reduces the angle dependency of structural wing colouration in nireus group papilionids,” J. Exp. Biol. 215(Pt 5), 796–805 (2012).
R. Zhang, H. Lin, Y. L. Yu, D. Q. Chen, J. Xu, and Y. S. Wang, “A new-generation color converter for high-power white led: transparent Ce3+:YAG phosphor-in-glass,” Laser Photonics Rev. 8(1), 158–164 (2014).
H. Gebavi, D. Milanese, R. Balda, M. Ivanda, F. Auzel, J. Lousteau, J. Fernandez, and M. Ferraris, “Novel Tm3+-doped fluorotellurite glasses with enhanced quantum efficiency,” Opt. Mater. 33(3), 428–437 (2011).
R. Bagga, V. G. Achanta, A. Goel, J. M. F. Ferreira, N. P. Singh, D. P. Singh, V. Contini, M. Falconieri, and G. Sharma, “Luminescence study of mixed valence Eu-doped nanocrystalline glass–ceramics,” Opt. Mater. 36(2), 198–206 (2013).
D. K. Singha, P. Majee, S. K. Mondal, and P. Mahata, “A Eu-doped Y-based luminescent metal-organic framework as a highly efficient sensor for nitroaromatic explosives,” Eur. J. Inorg. Chem. 2015(8), 1390–1397 (2015).
H. Guo, X. Wang, J. Chen, and F. Li, “Ultraviolet light induced white light emission in Ag and Eu3+ co-doped oxyfluoride glasses,” Opt. Express 18(18), 18900–18905 (2010).
P. Adhikary, S. Garain, S. Ram, and D. Mandal, “Flexible hybrid Eu3+ doped P(VDF-HFP) nanocomposite film possess hypersensitive electronic transitions and piezoelectric throughput,” J. Polym. Sci. Pol. Phys. 54(22), 2335–2345 (2016).
Q. L. Ma, W. S. Yu, X. T. Dong, J. X. Wang, G. X. Liu, and J. Xu, “Electrospinning fabrication and properties of Fe3O4/Eu(BA)3phen/PMMA magnetic–photoluminescent bifunctional composite nanoribbons,” Opt. Mater. 35(3), 526–530 (2013).
S. Fischer, B. Fröhlicha, H. Steinkempera, K. W. Krämerb, and J. C. Goldschmidta, “Absolute upconversion quantum yield of β-NaYF4 doped with Er3+ and external quantum efficiency of upconverter solar cell devices under broad-band excitation considering spectral mismatch corrections,” Sol. Energy Mater. Sol. Cells 122(10), 197–207 (2014).
L. Aleksandrov, T. Komatsu, R. Iordanova, and Y. Dimitriev, “Structure study of MoO3−ZnO−B2O3 glasses by raman spectroscopy and formation of α-ZnMoO4 nanocrystals,” Opt. Mater. 33(6), 839–845 (2011).
T. B. De. Queiroz, M. B. S. Botelho, T. S. Gonçalves, R. Dousti, and A. S. S. D. Camargo, “New fluorophosphate glasses co-doped with Eu3+ and Tb3+ as candidates for generating tunable visible light,” J. Alloys Compd. 647, 315–321 (2015).
W. D. A. M. de Boer, C. McGonigle, T. Gregorkiewicz, Y. Fujiwara, S. Tanabe, and P. Stallinga, “Optical excitation and external photoluminescence quantum efficiency of Eu3+ in GaN,” Sci. Rep. 4(1), 5235 (2015).
I. I. Kindrat and B. V. Padlyak, “Luminescence properties and quantum efficiency of the Eu-doped borate glasses,” Opt. Mater. 77, 93–103 (2018).
S. Babu and Y. C. Ratnakaram, “Emission characteristics of holmium ions in fluoro-phosphate glasses for photonic applications,” AIP Conf. Proc. 1731(1), 070001 (2016).
F. Huang, Y. Zhang, L. L. Hu, and P. D. Chen, “Judd–Ofelt analysis and energy transfer processes of Er3+ and Nd3+ doped fluoroaluminate glasses with low phosphate content,” Opt. Mater. 38, 167–173 (2014).
S. K. Gupta, N. Pathak, and R. M. Kadam, “An efficient gel-combustion synthesis of visible light emitting barium zirconate perovskite nanoceramics: probing the photoluminescence of Sm3+ and Eu3+ doped BaZrO3,” J. Lumin. 169, 106–114 (2016).
Y. Jin, J. H. Zhang, and W. P. Qin, “Photoluminescence properties of red phosphor Gd3Po7:Eu3+ for UV-pumped light-emitting diodes,” J. Alloys Compd. 579, 263–266 (2013).
G. Lakshminarayana, J. Qiu, M. G. Brik, G. A. Kumar, and I. V. Kityk, “Spectral analysis of Er3+-, Er3+/Yb3+-and Er3+/Tm3+/Yb3+-doped TeO2-ZnO-WO3-TiO2-Na2O glasses,” J. Phys. Condens. Matter 20(37), 375101 (2008).
X. Q. Xiang, B. Wang, H. Lin, J. Xu, J. M. Wang, T. Hu, and Y. S. Wang, “Towards long-lifetime high-performance warm w-LEDs: Fabricating chromaticity-tunable glass ceramic using an ultra-low melting Sn-PFO glass,” J. Eur. Ceram. Soc. 38(4), 1990–1997 (2018).
U. Caldiño, I. Camarillo, A. Speghini, M. Bettinelli, and T. B. De. Queiroz, “Down-shifting by energy transfer in Tb3+/Dy3+ co-doped zinc phosphate glasses”,” J. Lumin. 161, 142–146 (2015).
C. R. Kesavulu, K. K. Kumar, N. Vijaya, K. S. Lim, and C. K. Jayasankar, “Thermal, vibrational and optical properties of Eu3+-doped lead fluorophosphate glasses for red laser applications,” Mater. Chem. Phys. 141(2−3), 903–911 (2013).
M. V. V. Kumar, B. C. Jamalaiah, K. R. Gopal, and R. R. Reddy, “Novel Eu3+-doped lead telluroborate glasses for red laser source applications,” J. Solid State Chem. 184(8), 2145–2149 (2011).
W. Stambouli, H. Elhouichet, B. Gelloz, and M. Férid, “Optical and spectroscopic properties of Eu-doped tellurite glasses and glass ceramics,” J. Lumin. 138(6), 201–208 (2013).
L. G. Dai, L. Wang, H. Q. Jia, W. X. Wang, J. M. Zhou, W. M. Liu, and H. Chen, “Realization of high-luminous-efficiency InGaN light-emitting diodes in the “green gap” range,” Sci. Rep-UK. 5, 10883 (2015).
D. G. Li, W. P. Qin, S. H. Liu, W. B. Pei, Z. Wang, P. Zhang, L. L. Wang, and L. Huang, “Synthesis and luminescence properties of RE3+ (RE= Yb, Er, Tm, Eu, Tb)-doped Sc2O3 microcrystals,” J. Alloys Compd. 653, 304–309 (2015).
L. Li, H. T. Lin, S. T. Qiao, Y. Zou, S. Danto, K. Richardson, J. D. Musgraves, N. S. Lu, and J. J. Hu, “Integrated flexible chalcogenide glass photonic devices,” Nat. Photonics 8(8), 643–649 (2014).
X. M. Zang, D. S. Li, E. Y. B. Pun, and H. Lin, “Dy3+ doped borate glasses for laser illumination,” Opt. Mater. Express 7(6), 2040–2054 (2017).
Camargo, A. S. S. D.
de Boer, W. D. A. M.
de Lima Filho, E. S.
Swamy, B. J. R. S.
Fig. 1 Normalized emission spectra of 0.2wt%, 0.5wt%, 1.0wt%, 2.0wt%, 4.0wt% and 6.0wt% Eu2O3 doped NBFP glasses under 395 nm excitation. Inset: fluorescent photographs with increasing dopant concentration in the clockwise direction under 395 nm excitation.
Fig. 2 Normalized excitation spectra of 0.2wt%, 0.5wt%, 1.0wt%, 2.0wt%, 4.0wt% and 6.0wt% Eu2O3 doped NBFP glasses monitoring at 615 nm emission. Inset: the relationship between emission intensity and Eu2O3 doping concentration.
Fig. 3 XRD pattern spectrum of 2.0wt% Eu2O3 doped NBFP glass. Insets: DSC curve of 6.0wt% doped NBFP glass (a) and optical transmission spectrum of 2.0wt% Eu2O3 doped NBFP glass (b).
Fig. 4 Net spectral power distribution curves of 2.0wt% (a-b) and 6.0wt% (c-d) Eu2O3 doped NBFP glasses under 465 nm laser excitation with different power. Insets: fluorescent photographs of 2.0wt% (a-b) and 6.0wt% (c-d) Eu2O3 doped NBFP glasses under 465 nm laser excitation with different power.
Fig. 5 Net emission photon distributions in 2.0wt% (a-b) and 6.0wt% (c-d) Eu2O3 doped NBFP glasses under the excitation 465 nm laser with different power. Inset: net absorption photon distributions under the 465 nm laser excitation, the area of red and blue rectangles stand for absorption and emission photon numbers, respectively.
Fig. 6 Fluorescence decay curves of 0.2wt%, 2.0wt%, 4.0wt% and 6.0wt% Eu2O3 doped NBFP glasses monitoring at 615 nm under 465 nm laser excitation.
Fig. 7 Net spectral power distributions for 2.0wt% and 6.0wt% Eu2O3 doped NBFP glasses under 465 nm laser excitation with 561 mW power. Insets: fluorescent photographs of 2.0wt% and 6.0wt% Eu2O3 doped NBFP glasses under 465 nm laser excitation with 561 mW.
Fig. 8 Luminous flux distributions of 2.0wt% and 6.0wt% Eu2O3 doped NBFP glasses under 465 nm laser excitation with 561 mW power. Insets: pie charts display the percentage of the luminous fluxes between the orangish red emission and those of residual laser.
Table 1 Absorption and emission photon numbers and measured quantum yields in Eu3+ doped NBFP glasses under 465 nm laser excitation.
Table 2 Photon number ratios and intensity parameters (Ω2, Ω4 and Ω6) in Eu3+ doped NBFP glasses under 465 nm laser excitation.
Table 3 Spontaneous transition probabilities Aij, branching ratios βij and radiative fluorescent lifetime τrad of 5D0 level in Eu3+ doped NBFP glasses.
Table 4 Experimental average fluorescent lifetimes τexp-avg, lifetime-based quantum yield QYL values, multi-phonon relaxation rates WMPR and cross relaxation rates WCR of Eu3+ doped NBFP glasses.
Table 5 Emission luminous fluxes, residual laser luminous fluxes, and total luminous fluxes from 2.0wt% and 6.0wt% Eu2O3 doped NBFP glass under the excitation of 465 nm laser with 561 mW power.
Absorption and emission photon numbers and measured quantum yields in Eu3+ doped NBFP glasses under 465 nm laser excitation.
Photon number ratios and intensity parameters (Ω2, Ω4 and Ω6) in Eu3+ doped NBFP glasses under 465 nm laser excitation.
Spontaneous transition probabilities Aij, branching ratios βij and radiative fluorescent lifetime τrad of 5D0 level in Eu3+ doped NBFP glasses.
Experimental average fluorescent lifetimes τexp-avg, lifetime-based quantum yield QYL values, multi-phonon relaxation rates WMPR and cross relaxation rates WCR of Eu3+ doped NBFP glasses.
Emission luminous fluxes, residual laser luminous fluxes, and total luminous fluxes from 2.0wt% and 6.0wt% Eu2O3 doped NBFP glass under the excitation of 465 nm laser with 561 mW power.

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