High thermal stable blue-emitting alkali silicate phosphor, Eu2+-activated Na2Mg2Si6O15
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
White LEDs based on near ultraviolet LED and red/green/blue phosphors have been attracted in terms of outstanding colorrendering index. In particular, we focus on the blue emitting phosphors because the commercial BaMgAl10O17:Eu2+ needs hightemperature in order to be obtained. In this study, we succeeded in synthesizing Eu2+-activated Na2Mg2Si6O15 phosphors asa single phase by the conventional solid state reaction. Eu2+-doped Na2Mg2Si6O15 phosphors showed the broad blue emissionfrom 400-550 nm due to the 4f-5d allowed transition of Eu2+ under the ultraviolet light excitation. Moreover, the emissionintensity of Eu2+-activated Na2Mg2Si6O15 phosphor at high temperature kept about 85% at 423 K, which indicated the thermalstability of Na2Mg2Si6O15:Eu2+ was extremely higher than that of other Eu2+-activated silicate phosphors. Thus, Eu2+-activatedNa2Mg2Si6O15 phosphor is able to become the novel luminescent material for White LED based on the near-ultraviolet LED.
Abstract
White LEDs based on near ultraviolet LED and red/green/blue phosphors have been attracted in terms of outstanding colorrendering index. In particular, we focus on the blue emitting phosphors because the commercial BaMgAl10O17:Eu2+ needs hightemperature in order to be obtained. In this study, we succeeded in synthesizing Eu2+-activated Na2Mg2Si6O15 phosphors asa single phase by the conventional solid state reaction. Eu2+-doped Na2Mg2Si6O15 phosphors showed the broad blue emissionfrom 400-550 nm due to the 4f-5d allowed transition of Eu2+ under the ultraviolet light excitation. Moreover, the emissionintensity of Eu2+-activated Na2Mg2Si6O15 phosphor at high temperature kept about 85% at 423 K, which indicated the thermalstability of Na2Mg2Si6O15:Eu2+ was extremely higher than that of other Eu2+-activated silicate phosphors. Thus, Eu2+-activatedNa2Mg2Si6O15 phosphor is able to become the novel luminescent material for White LED based on the near-ultraviolet LED.
참고문헌 (47)
- Z. Xia, , Dalt. Trans, 45, pp.11214~11232 (2016)
- C. C. Lin, , J. Phys. Chem. Lett, 2(11), pp.1268~1267 (2011)
- S. Lee, , J. Electrochem. Soc, 149(11), pp.J85~J88 (2002)
- J.H. Yum, , J. Electrochem. Soc, 150(2), pp.H47~H52 (2003)
- G. Li, , Chem. Soc. Rev, 44, pp.8688~8713 (2015)
- J. K. Sheu, , IEEE Photonics Technol. Lett, 15(1), pp.18~20 (2003)
- P. Wagatha, , Chem. Mater, 30(5), pp.1755~1761 (2018)
- C. C. Lin, , J. Phys. Chem. Lett, 7(3), pp.495~503 (2016)
- J.-C. Bünzli, "Handbook on the Physics and Chemistry of Rare Earths", pp.1~128 (2016), Elsevier press
- M. Xie, , RSC Adv, 6, pp.3390~3397 (2016)
- K. Li, , J. Mater. Chem. C, 4, pp.5507~5530 (2016)
- X. Zhang, , J. Phys. Chem. C, 118, pp.7591~7598 (2014)
- Y. Wei, , RSC Adv, 6, pp.43771~43779 (2016)
- K B. Kim, , Chem. Mater, 14(12), pp.5045~5052 (2002)
- T. L. Barry, , J. Electrochem. Soc, 115(11), pp.1181~1184 (1968)
- K. Uheda, , Electrochem. Solid State Lett, 9(4), pp.H22~H25 (2006)
- W. Lv, , J. Phys. Chem. C, 118(9), pp.4649~4655 (2014)
- J. Liao, , J. Alloy. Compd, 487, pp.758~762 (2009)
- Y. C. Chiu, , J. Mater. Chem, 20, pp.1755~1758 (2010)
- L. J. Yin, , J. Phys. Chem. C, 120(4), pp.2355~2361 (2016)
- W. Zhang, , J Phys. Chem. Solids, 75, pp.163~167 (2014)
- D. K. Kim, , J. Solid State Chem, 178, pp.1414~1421 (2015)
- S.W. Kim, , ECS Solid State Lett, 2(12), pp.R49~R51 (2013)
- W. Tang, , Lumin, 25(5), pp.364~366 (2009)
- Z. Xia, , J. Phys. Chem. C, 117(40), pp.20847~20854 (2013)
- X. Wang, , J. Mater. Chem. C, 4, pp.8795~8801 (2016)
- Y. H. Kim, , Nat. Mater, 16, pp.543~550 (2017)
- M. Zhao, , Chem. Mater, 29(15), pp.6552~6559 (2017)
- M. Iwaki, , J. Alloy. Compd, 776, pp.1016~1024 (2019)
- D. Dutzler, , Angew. Chem. Int. Ed, 130(41), pp.13865~13869 (2018)
- D. Dutzler, , Angew. Chem. Int. Ed, 57(41), pp.13676~13680 (2018)
- H. Liao, , Angew. Chem. Int. Ed, 130(36), pp.11902~11905 (2018)
- M. Zhao, , Adv. Mater, 30(38), pp.1802489~ (2018)
- M. -H. Fang, , ACS Energy Lett, 3(10), pp.2573~2586 (2018)
- M. E. Cradwick, , Acta Crystallogr. Sect. B. Struct. Sci, 28(12), pp.3583~3587 (1972)
- R. D. Shannon, , Acta Crystallogr., Sect. A, 32, pp.751~767 (1976)
- K. Momma, , J. Appl. Crystallog, 41, pp.653~658 (2008)
- M. Peng, , J. Mater. Chem, 13, pp.1202~1205 (2003)
- A. M. Pires, , Chem. Mater, 13(1), pp.21~27 (2013)
- G. Blasse, , J. Solid State Chem, 62, pp.207~211 (1986)
- T. Hasegawa, , J. Mater. Chem. C, 5, pp.9472~9478 (2017)
- G. Li, , New. J. Chem, 4, pp.5565~5571 (2017)
- B. Henderson, "Optical spectroscopy of Inorganic Solids", pp.68~76 (1989), Oxford science publications press
- X. Zhang, , J. Alloy. Compd, 575, pp.314~318 (2013)
- L. He, , Inorg. Chem, 57(7), pp.4146~4154 (2018)
- D. S. Jo, , Opt. Mater, 34, pp.696~699 (2012)
- J. Chen, , Inorg. Chem, 56(3), pp.1144~1151 (2017)