Improving the luminescence properties of Ba₃Eu(PO₄)₃ by doping Sm³⁺ as sensitizer

Abstract

For enhancing the emission intensity and broadening the excitation region of Ba₃Eu(PO₄)₃ (BEP), Sm³⁺ is doped as sensitizer in this paper. BEP:Sm³⁺ can produce an obvious red emission at near ultraviolet (n-UV) radiation. An effective energy transfer from Sm³⁺ to Eu3+ is proved. The commission international de I’Eclairage (CIE) chromaticity coordinates of BEP:Sm³⁺ locate at red region. When the environment temperature is 150 °C, the emission intensity of BEP:0.10Sm³⁺ is decreased to 76% of the initial one at room temperature, and the activation energy is calculated to be 0.164 eV, which can prove the good thermal stability of BEP:Sm³⁺. The results indicate that BEP:Sm³⁺ may have potential applications in white light emitting diodes (LEDs).

References

[1] PangL.-b., GaoS.-j., GaoZ.-j., LiH.-l., WangZ.-j.. Optoelectronics Letters, 2013, 9: 282

[2] SunJ., ZhangX., XiaZ., DuH.. Journal of Applied Physics, 2012, 111: 013101

[3] LiuH.-y., ZhangK., PangL.-b., GaoS.-j., GaoZ.-j., DuanP.-g., ZhangZ.-c., WangZ.-j.. Optoelectronics Letters, 2014, 10: 451

[4] ZhouQ., ZhouY., LiuY., LuoL., WangZ., PengJ., YanJ., WuM.. Journal of Materials Cheistry C, 2015, 3: 3055

[5] ZhouX., WangX.. Luminescence, 2014, 29: 143

[6] ZhangJ., LiuY., LiL., ZhangN., ZouL., GanS.. RSC Advance, 2015, 5: 29346

[7] ShiS., HeL., GengL., JiangL., WangS., ZhangJ., ZhouJ.. Ceramics International, 2015, 41: 11960

[8] JiH., HuangZ., XiaZ., MolokeevM. S., JiangX., LinZ., AtuchinV. V.. Dalton Transactions, 2015, 44: 7679

[9] WangZ., LiangH., GongM., SuQ.. Optical Materials, 2007, 29: 896

[10] XuZ., LiC., LiG., ChaiR., PengC., YangD., LinJ.. Journal of Physical Chemistry C, 2010, 114: 2573

[11] LiG., LiL., LiM., BaoW., SongY., GanS., ZouH., XuX.. Journal of Alloys and Compounds, 2013, 550: 1

[12] WanL., LüS., SunL., QuX.. Optical Materials, 2014, 36: 628

[13] WuL., JiM., WangH., KongY., ZhangY.. Optical Materials Express, 2014, 4: 1535

[14] YangW. J., LuoL., ChenT. M., WangN. S.. Chemistry of Materials, 2005, 17: 3883

[15] DorenbosP.. Journal of Physics Condensed Mater, 2005, 17: 8103