期刊文献+

Photoluminescence properties of a novel orange-red emitting Ba_2CaZn_2Si_6O_(17):Sm^(3+)phosphor 被引量:2

Photoluminescence properties of a novel orange-red emitting Ba_2CaZn_2Si_6O_(17):Sm^(3+) phosphor
原文传递
导出
摘要 Novel orange-red emitting Ba_2Ca_(1–x)Zn_2Si_6O_(17):x Sm^(3+)(0.02≤x≤0.08) phosphors were synthesized using conventional solid-state reaction method under air atmosphere. The phase formation of the samples was characterized by powder X-ray diffraction patterns. Scanning electron microscopy(SEM) and photoluminescence properties were also investigated. The narrow excitation and emission spectra indicated the typical 4f-4f transitions of Sm^(3+). The dominant excitation line was around 405 nm attributed to ~6H_(5/2)→ ~4F_(7/2) and the emission spectrum consisted of four emission peaks at 562, 600, 647, and 708 nm corresponding to the various transitions ~4G_(5/2) to ~6HJ(J=5/2, 7/2, 9/2 and 11/2) of the Sm^(3+) ions in the same order. The strongest emission band located at 600 nm was attributed to ~4G_(5/2)→~6H_(7/2) transition of Sm^(3+), producing bright orange-red color emission. The optimal dopant concentration of Sm3+ ion in Ba_2CaZn_2Si_6O_(17):x Sm^(3+) phosphor was around 4 mol.% and the critical transfer distance(Rc) of Sm^(3+) was calculated to be 2.65 nm. Decay time varied with the Sm^(3+) concentrations in Ba_2 CaZn_2Si_6O_(17) phosphors. In addition, the Commission International del'Eclairagethe(CIE) chromaticity coordinates of Ba_2Ca_(0.96)Zn_2Si_6O_(17):0.04Sm^(3+) phosphor was located in the orange-red region(0.547, 0.450) and the correlated color temperature(CCT) was 2543 K. The present results indicated that Sm^(3+) activated Ba_2CaZn_2Si_6O_(17) phosphors may be used as an orange-red emitting phosphor for near-ultraviolet(n-UV) based white light emitting diodes(WLEDs) applications. Novel orange-red emitting Ba_2Ca_(1–x)Zn_2Si_6O_(17):x Sm^(3+)(0.02≤x≤0.08) phosphors were synthesized using conventional solid-state reaction method under air atmosphere. The phase formation of the samples was characterized by powder X-ray diffraction patterns. Scanning electron microscopy(SEM) and photoluminescence properties were also investigated. The narrow excitation and emission spectra indicated the typical 4f-4f transitions of Sm^(3+). The dominant excitation line was around 405 nm attributed to ~6H_(5/2)→ ~4F_(7/2) and the emission spectrum consisted of four emission peaks at 562, 600, 647, and 708 nm corresponding to the various transitions ~4G_(5/2) to ~6HJ(J=5/2, 7/2, 9/2 and 11/2) of the Sm^(3+) ions in the same order. The strongest emission band located at 600 nm was attributed to ~4G_(5/2)→~6H_(7/2) transition of Sm^(3+), producing bright orange-red color emission. The optimal dopant concentration of Sm3+ ion in Ba_2CaZn_2Si_6O_(17):x Sm^(3+) phosphor was around 4 mol.% and the critical transfer distance(Rc) of Sm^(3+) was calculated to be 2.65 nm. Decay time varied with the Sm^(3+) concentrations in Ba_2 CaZn_2Si_6O_(17) phosphors. In addition, the Commission International del'Eclairagethe(CIE) chromaticity coordinates of Ba_2Ca_(0.96)Zn_2Si_6O_(17):0.04Sm^(3+) phosphor was located in the orange-red region(0.547, 0.450) and the correlated color temperature(CCT) was 2543 K. The present results indicated that Sm^(3+) activated Ba_2CaZn_2Si_6O_(17) phosphors may be used as an orange-red emitting phosphor for near-ultraviolet(n-UV) based white light emitting diodes(WLEDs) applications.
出处 《Journal of Rare Earths》 SCIE EI CAS CSCD 2016年第6期576-582,共7页 稀土学报(英文版)
关键词 Sm^(3+) PHOSPHORS PHOTOLUMINESCENCE WLEDs rare earths Sm^(3+) phosphors photoluminescence WLEDs rare earths
  • 相关文献

参考文献36

  • 1Zhang J C, Wu X L, Zhu J F, Ren Q. Luminescence prop- erties of a novel CaLa4Si3Ol3:Sm3+ phosphor for white light emitting diodes. Opt. Commun., 2014, 332: 223.
  • 2Dillip G R, Mohan Kumar P, Deva Prasad Raju B, Dhoble S J. Synthesis and luminescence properties of a novel Na6CaP209:Sm3+ phosphor. J. Lumin., 2013, 134: 333.
  • 3Xiao Q, Zhou Q T, Li M. Synthesis and photolurnines- cence properties of Sm3+-doped CaWO4 nanoparticles. J. Lumin., 2010, 130(6): 1092.
  • 4Yang Z P, Dong H Y, Liu P F, Hou C C, Liang X S, Wang C, Lu F C. Photoluminescence properties of Sm3+-doped LiY(MoO4)2 red phosphors. J. Rare Earths, 2014, 32(5):404.
  • 5Gu X G, Fu R L, Jiang W, Zhang P, Ye T A, Co,gun A. Photoluminescence properties of an orange-red LaSr2A1Os:Sm3+ phosphor prepared by the pechini-type sol-gel process. J. Rare Earths, 2015, 33(9): 954.
  • 6Wei R F, Ma C G, Wei Y L, Gao J Y, Guo H. Tunable white luminescence and energy transfer in novel Cu+, Sm3+ co-doped borosilicate glasses for W-LEDs. Opt. Ex- press, 2012, 20(28): 29743.
  • 7Nakamura S. GaN growth using GaN buffer layer. Jpn. J. Appl. Phys., 1991, 30: L1707.
  • 8Nakamura S, Fasol G. The blue laser diode: GaN based light emitters and lasers. Berlin, Germany: Springer, 1997. 221.
  • 9Li K, Geng D L, Shang M M, Zhang Y, Lian H Z, Lin J. Color-tunable luminescence and energy transfer properties of CagMg(POa)6F2:Eu2+,Mn2+ phosphors for UV-LEDs. J. Phys. Chem. C, 2014, 118(20): 11026.
  • 10Huang C H, Wang D Y, Chiu Y C, Yeh Y T, Chen T M. Sr8MgGd(PO4)7:Eu2+:yellow-emitting phosphor for appli- cation in near-ultraviolet-emitting diode based white-light LEDs. RSCAdv., 2012, 2(24): 9130.

同被引文献5

引证文献2

二级引证文献3

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部