Luminescence properties and energy transfer of a novel bluish-green tunable NaBa4(BO3)(3):Ce3+, Tb3+ phosphor

作者：Zhang, Mengfei; Liang, Yujun^*; Xia, Zhanggen; Yang, Fan; Yu, Dongyan; Li, Guogang

来源：Materials Research Bulletin, 2013, 48(11): 4749-4753.

DOI：10.1016/j.materresbull.2013.05.122

• Optical materials
• Luminescence
• Optical properties

A series of single-phased emission tunable NaBa4(BO3)(3):Ce3+, Tb3+ phosphors were synthesized by solid-state reaction. The crystal structure, photoluminescence properties, concentration quenching and energy transfer of NaBa4(BO3)(3):Ce3+, Tb3+ were systematically investigated. The wavelength-tunable bluish-green light can be realized by coupling the emission bands centered at 425 and 543 nm ascribed to the contribution from Ce3+ and Tb3+, respectively. The energy transfer from Ce3+ to Tb3+ in NaBa4(BO3)(3) host was studied and demonstrated to be a resonant type via a dipole-dipole interaction mechanism. The energy transfer efficiency (Ce3+ -> Tb3+) obtained by decay curves was consistent with the result calculated by the emission intensity, which gradually increased from 0% to 84.5% by increasing the Tb3+ doping content from 0 to 0.45. The results indicate that the NaBa4(BO3)(3):Ce3+, Tb3+ phosphors have potential applications as an ultraviolet-convertible phosphor due to its effective excitation in the ultraviolet rang.

• 出版日期2013-11
• 单位中国地质大学（北京）