White light obtainment via tricolor luminescent centers and energy transfer in Ca3ZrSi2O9:Eu3+,Bi3+,Tb3+ phosphors
White light obtainment via tricolor luminescent centers and energy transfer in Ca3ZrSi2O9:Eu3+,Bi3+,Tb3+ phosphors
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DOI：
10.1364/ome.8.003526
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发表时间：
2018-10
影响因子：
2.8
通讯作者：
Zhenzhen Zhou;Guanghui Liu;Jianzuan Ni;Wanlu Liu;Qian Liu
中科院分区：
文献类型：
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作者：
Zhenzhen Zhou;Guanghui Liu;Jianzuan Ni;Wanlu Liu;Qian Liu
成功合成了Bi3+、Eu3+、Tb3+三掺杂白光发光荧光粉Ca3ZrSi2O9:Eu3+、Bi3+、Tb3+。在Bi3+和Eu3+共掺荧光粉Ca2.83-yZrSi2O9:0.17Eu3+，yBi3+中，Bi3+离子同时发出蓝光和Eu3+离子同时发出红光。在荧光粉Ca2.68ZrSi2O9:0.17Eu3+，0.15Bi3+中存在Bi3+向Eu3+离子的能量转移，能量转移效率为19.58%。Bi3+和Eu3+共掺杂荧光粉的CIE色度坐标Ca2.83-yZrSi2O9:0.17Eu3+，yBi3+刚好位于橙色和粉色区域。在Eu3+， Bi3+， Tb3+三掺杂荧光粉Ca2.74-zZrSi2O9:0.17Eu3+,0.09Bi3+，zTb3+中，通过进一步掺杂绿色发光的Tb3+离子（5D3,4 - 7FJ '跃迁），最终获得白光。在荧光粉Ca2.61ZrSi2O9:0.17Eu3+,0.09Bi3+，0.13Tb3+中，Bi3+离子向Tb3+离子也存在能量转移，能量转移效率为11.95%。三掺杂荧光粉Ca2.24ZrSi2O9:0.17Eu3+,0.09Bi3+，0.50Tb3+的CIE色度坐标在25 ~ 275℃范围内始终处于白光区。
Bi3+, Eu3+ and Tb3+ triple-doped white light emitting phosphors Ca3ZrSi2O9:Eu3+,Bi3+,Tb3+ were successfully synthesized. In Bi3+ and Eu3+ co-doped phosphors Ca2.83-yZrSi2O9:0.17Eu3+,yBi3+, the blue light from Bi3+ ions and red light from Eu3+ ions are simultaneously observed. Energy transfer exists from Bi3+ to Eu3+ ions, and the energy transfer efficiency is 19.58% in phosphor Ca2.68ZrSi2O9:0.17Eu3+,0.15Bi3+.The CIE chromaticity coordinates of Bi3+ and Eu3+ co-doped phosphors, Ca2.83-yZrSi2O9:0.17Eu3+,yBi3+, are just located in the orange and pink region. White light emitting was finally obtained in Eu3+, Bi3+, Tb3+ triply doped phosphors Ca2.74-zZrSi2O9:0.17Eu3+,0.09Bi3+,zTb3+, through further doping green light emitting Tb3+ ions (5D3,4 - 7FJ’ transitions). Energy transfer also exists from Bi3+ to Tb3+ ions, and this energy transfer efficiency is 11.95% in phosphor Ca2.61ZrSi2O9:0.17Eu3+,0.09Bi3+,0.13Tb3+. The CIE chromaticity coordinates are always in the white light region from 25 °C to 275 °C for the triply doped phosphor Ca2.24ZrSi2O9:0.17Eu3+,0.09Bi3+,0.50Tb3+.