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Concentration and thermal quenching of SrGdLiTeO6: Eu3+ red-emitting phosphor for white light-emitting diode

Zhao Wang Ping Zhao-Yan Zheng Qing-Hua Zhou Wei-Wei

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Concentration and thermal quenching of SrGdLiTeO6: Eu3+ red-emitting phosphor for white light-emitting diode

Zhao Wang, Ping Zhao-Yan, Zheng Qing-Hua, Zhou Wei-Wei
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  • A series of SrGd1-xLiTeO6:xEu3+ (x=0.1-1) red-emitting phosphors, prepared by high-temperature solid-state reaction at 1100℃, is thoroughly investigated by means of X-ray diffraction, diffuse reflectance spectra, photoluminescence spectra, and electroluminescence spectra. These double-perovskite-type phosphors crystallize into monoclinic systems with space group P21/n(14), accommodate Eu3+ in a highly distorted C1 site symmetry without inversion center, and facilitate the enhancing of the 5D07F2 hypersensitive transition. The excitation spectra, emission spectra and decay curves indicate that the optimum doping concentration of Eu3+ is x=0.6. The SrGd0.4LiTeO6:0.6Eu3+ presents the strongest excitation peak at 395 nm, which is adequate for near-UV light-emitting diode (LED) pumping; meanwhile, it exhibits an intense red emission with chromaticity coordinates of (0.6671, 0.3284), an asymmetry ratio of 7.56, a color purity of 98.6%, and a luminous efficacy of radiation of 249 lm/W. The fluorescence lifetime is 721 μs, from which the internal quantum efficiency is determined to be 89.7% via the Judd-Ofelt analysis. The formula proposed by van Uiter (van Uitert L G 1967 J. Electrochem. Soc. 114 1048), is used to elucidate the energy transfer mechanism. However, the plot of log(I/x)-log(x) produces a confusing index s=4.26, which makes it difficult to distinguish the dipole-dipole interaction from the exchange interaction. After analyzing the reason of error, we present a new plot of log(I0'/I-1)-log(x), in which I0'=I0/x0 and I'=I/x, with x0 corresponding to the low doping content without nonradiative energy transfer. This plot gives rise to s=5.25, a more reasonable value for the dipole-dipole interaction. The integrated emission intensity at 423 K is as high as 85.2% of that at ambient temperature. The thermal activation energy is determined to be 0.2941 eV according to the model based on a temperature-dependent pathway through a charge transfer state. The prototypical LED based on it can emit a bright red light beam. In conclusion, the phosphor exhibits favorable luminous efficiency, color purity and thermal stability of luminescence, which promises solid-state lighting and display applications.
    • Funds: Project supported by the Natural Science Foundation of Anhui Province, China (Grant No. 1708085QE91), the Scientific Research Foundation of the Education Department of Anhui Province, China (Grant Nos. gxyqZD2016259, gxyqZD2016260, KJ2016A673, gxbjZD37), the Innovative Research Team of Huainan City, China (Grant No. 2016A24), and the Research Program of Huainan Normal University, China (Grant Nos. 2015hsjyxm07, 2015hsyxkc15, 2017hsyxkc70).
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    Lin C C, Meijerink A, Liu R S 2016 J. Phys. Chem. Lett. 7 495

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    Pust P, Schmidt P J, Schnick W 2015 Nat. Mater. 14 454

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    Li S, Xie R J, Takeda T, Hirosaki N 2018 ECS J. Solid State SC 7 R3064

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    Pust P, Weiler V, Hecht C, Tücks A, Wochnik A S, Henß A, Wiechert D, Scheu C, Schmidt P J, Schnick W 2014 Nat. Mater. 13 891

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    Yoshimura K, Fukunaga H, Izumi M, Takahashi K, Xie R J, Hirosaki N 2017 Jpn. J. Appl. Phys. 56 041701

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    Li L, Chang W, Chen W, Feng Z, Zhao C, Jiang P, Wang Y, Zhou X, Suchocki A 2017 Ceram. Int. 43 2720

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    Liu Q, Wang L, Huang W, Li X, Yu M, Zhang Q 2018 Ceram. Int. 44 1662

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    Li X, Liu Q, Huang W, Chen S, Wang L, Yu M, Zhang Q 2018 Ceram. Int. 44 1909

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    Zhong J S, Gao H B, Yuan Y J, Chen L F, Chen D Q, Ji Z G 2018 J. Alloys Compd. 735 2303

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    Fu A, Guan A, Gao F, Zhang X, Zhou L, Meng Y, Pan H 2017 Opt. Laser Technol. 96 43

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    Yin X, Yao J, Wang Y, Zhao C, Huang F 2012 J. Lumin. 132 1701

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    Zhang L, Sun B, Shao C, Zhen F, Wei S, Bu W, Yao Q, Jiang Z, Chen H 2018 Ceram. Int. 44 17305

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    Sivakumar V, Varadaraju U V 2008 J. Solid State Chem. 181 3344

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    Li X, Li X, Wang X, Tong L, Cheng L, Sun J, Zhang J, Xu S, Chen B 2017 J. Mater. Sci. 52 935

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    Sun H, Zhang Q, Wang X, Zhang T 2014 Mater. Lett. 131 164

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    Liu Q, Wang L, Huang W, Zhang L, Yu M, Zhang Q 2017 J. Alloys Compd. 717 156

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    Li Q, Zhang L, Zhen F, Wei S, Bu W, Yao Q, Jiang Z, Chen H 2018 Ceram. Int. 44 15565

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    Jiao M, Yang C, Liu M, Xu Q, Yu Y, You H 2017 Opt. Mater. Express 7 2660

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    Liang Y, Noh H M, Ran W, Park S H, Choi B C, Jeong J H, Kim K H 2017 J. Alloys Compd. 716 56

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    Sletnes M, Lindgren M, Valmalette J C, Wagner N P, Grande T, Einarsrud M A 2016 J. Solid State Chem. 237 72

    [27]

    Yu R, Wang C, Chen J, Wu Y, Li H, Ma H 2014 ECS J. Solid State SC 3 R33

    [28]

    Nguyen H, Kim S, Yeo I, Mho S 2012 J. Electrochem. Soc. 159 J54

    [29]

    López M L, Alvarez I, Gaitán M, Jerez A, Pico C, Veiga M L 1993 Solid State Ionics 63–65 599

    [30]

    Amrithakrishnan B, Subodh G 2017 Mater. Res. Bull. 93 177

    [31]

    Park J H, Woodward P M 2000 Int. J. Inorg. Mater. 2 153

    [32]

    Korotkov A S, Atuchin V V 2010 J. Phys. Chem. Solids 71 958

    [33]

    Judd B R 1962 Phys. Rev. 127 750

    [34]

    Ofelt G S 1962 J. Chem. Phys. 37 511

    [35]

    Werts M H V, Jukes R T F, Verhoeven J W 2002 Phys. Chem. Chem. Phys. 4 1542

    [36]

    Tanner P A 2013 Chem. Soc. Rev. 42 5090

    [37]

    Wiglusz R J, Pazik R, Lukowiak A, Strek W 2011 Inorg. Chem. 50 1321

    [38]

    Jørgensen C K, Reisfeld R 1983 J. Less-Comm. Met. 93 107

    [39]

    Blasse G 1968 Phys. Lett. A 28 444

    [40]

    van Uitert L G 1967 J. Electrochem. Soc. 114 1048

    [41]

    Riseberg L A, Moos H W 1968 Phys. Rev. 174 429

    [42]

    Fonger W H, Struck C W 1970 J. Chem. Phys. 52 6364

    [43]

    Liu Q, Li X, Zhang B, Wang L, Zhang Q, Zhang L 2016 Ceram. Int. 42 15294

    [44]

    Liang J, Zhao S, Yuan X, Li Z 2018 Opt. Laser Technol. 101 451

  • [1]

    Nakamura S, Senoh M, Iwasa N, Nagahama S 1995 Appl. Phys. Lett. 67 1868

    [2]

    Lin C C, Meijerink A, Liu R S 2016 J. Phys. Chem. Lett. 7 495

    [3]

    Pust P, Schmidt P J, Schnick W 2015 Nat. Mater. 14 454

    [4]

    Li S, Xie R J, Takeda T, Hirosaki N 2018 ECS J. Solid State SC 7 R3064

    [5]

    Pust P, Weiler V, Hecht C, Tücks A, Wochnik A S, Henß A, Wiechert D, Scheu C, Schmidt P J, Schnick W 2014 Nat. Mater. 13 891

    [6]

    Yoshimura K, Fukunaga H, Izumi M, Takahashi K, Xie R J, Hirosaki N 2017 Jpn. J. Appl. Phys. 56 041701

    [7]

    Meyer J, Tappe F 2015 Adv. Opt. Mater. 3 424

    [8]

    Chen D, Zhou Y, Zhong J 2016 RSC Adv. 6 86285

    [9]

    Judd B R 1966 J. Chem. Phys. 44 839

    [10]

    Li L, Chang W, Chen W, Feng Z, Zhao C, Jiang P, Wang Y, Zhou X, Suchocki A 2017 Ceram. Int. 43 2720

    [11]

    Sharits A R, Khoury J F, Woodward P M 2016 Inorg. Chem. 55 12383

    [12]

    Liu Q, Wang L, Huang W, Li X, Yu M, Zhang Q 2018 Ceram. Int. 44 1662

    [13]

    Li X, Liu Q, Huang W, Chen S, Wang L, Yu M, Zhang Q 2018 Ceram. Int. 44 1909

    [14]

    Zhong J S, Gao H B, Yuan Y J, Chen L F, Chen D Q, Ji Z G 2018 J. Alloys Compd. 735 2303

    [15]

    Yin X, Wang Y, Huang F, Xia Y, Wan D, Yao J 2011 J. Solid State Chem. 184 3324

    [16]

    Fu A, Guan A, Gao F, Zhang X, Zhou L, Meng Y, Pan H 2017 Opt. Laser Technol. 96 43

    [17]

    Yin X, Yao J, Wang Y, Zhao C, Huang F 2012 J. Lumin. 132 1701

    [18]

    Zhang L, Sun B, Shao C, Zhen F, Wei S, Bu W, Yao Q, Jiang Z, Chen H 2018 Ceram. Int. 44 17305

    [19]

    Sivakumar V, Varadaraju U V 2008 J. Solid State Chem. 181 3344

    [20]

    Li X, Li X, Wang X, Tong L, Cheng L, Sun J, Zhang J, Xu S, Chen B 2017 J. Mater. Sci. 52 935

    [21]

    Sun H, Zhang Q, Wang X, Zhang T 2014 Mater. Lett. 131 164

    [22]

    Liu Q, Wang L, Huang W, Zhang L, Yu M, Zhang Q 2017 J. Alloys Compd. 717 156

    [23]

    Li Q, Zhang L, Zhen F, Wei S, Bu W, Yao Q, Jiang Z, Chen H 2018 Ceram. Int. 44 15565

    [24]

    Jiao M, Yang C, Liu M, Xu Q, Yu Y, You H 2017 Opt. Mater. Express 7 2660

    [25]

    Liang Y, Noh H M, Ran W, Park S H, Choi B C, Jeong J H, Kim K H 2017 J. Alloys Compd. 716 56

    [26]

    Sletnes M, Lindgren M, Valmalette J C, Wagner N P, Grande T, Einarsrud M A 2016 J. Solid State Chem. 237 72

    [27]

    Yu R, Wang C, Chen J, Wu Y, Li H, Ma H 2014 ECS J. Solid State SC 3 R33

    [28]

    Nguyen H, Kim S, Yeo I, Mho S 2012 J. Electrochem. Soc. 159 J54

    [29]

    López M L, Alvarez I, Gaitán M, Jerez A, Pico C, Veiga M L 1993 Solid State Ionics 63–65 599

    [30]

    Amrithakrishnan B, Subodh G 2017 Mater. Res. Bull. 93 177

    [31]

    Park J H, Woodward P M 2000 Int. J. Inorg. Mater. 2 153

    [32]

    Korotkov A S, Atuchin V V 2010 J. Phys. Chem. Solids 71 958

    [33]

    Judd B R 1962 Phys. Rev. 127 750

    [34]

    Ofelt G S 1962 J. Chem. Phys. 37 511

    [35]

    Werts M H V, Jukes R T F, Verhoeven J W 2002 Phys. Chem. Chem. Phys. 4 1542

    [36]

    Tanner P A 2013 Chem. Soc. Rev. 42 5090

    [37]

    Wiglusz R J, Pazik R, Lukowiak A, Strek W 2011 Inorg. Chem. 50 1321

    [38]

    Jørgensen C K, Reisfeld R 1983 J. Less-Comm. Met. 93 107

    [39]

    Blasse G 1968 Phys. Lett. A 28 444

    [40]

    van Uitert L G 1967 J. Electrochem. Soc. 114 1048

    [41]

    Riseberg L A, Moos H W 1968 Phys. Rev. 174 429

    [42]

    Fonger W H, Struck C W 1970 J. Chem. Phys. 52 6364

    [43]

    Liu Q, Li X, Zhang B, Wang L, Zhang Q, Zhang L 2016 Ceram. Int. 42 15294

    [44]

    Liang J, Zhao S, Yuan X, Li Z 2018 Opt. Laser Technol. 101 451

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Publishing process
  • Received Date:  13 August 2018
  • Accepted Date:  21 October 2018
  • Published Online:  20 December 2019

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