Luminescence Enhancement by Ga3+ Codoping of BaTiO3:Pr3+ Phosphors
Luminescence Enhancement by Ga3+ Codoping of BaTiO3:Pr3+ Phosphors
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DOI：
10.1143/jjap.48.052301
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发表时间：
2009-05
影响因子：
1.5
通讯作者：
Seung-Youl Kang;Yong Hae Kim;Jaehyun Moon;Kyong Soo Suh;Dong Joo Lee;S. Kang
中科院分区：
文献类型：
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作者：
Seung-Youl Kang;Yong Hae Kim;Jaehyun Moon;Kyong Soo Suh;Dong Joo Lee;S. Kang
研究了Pr掺杂和Ga共掺杂对BaTiO_3荧光粉发光性能的影响。在Pr浓度为0.011摩尔%时观察到红色发射的最大发光强度，该浓度比先前关于磷光体的发光特性的报道中的浓度低得多。Ga共掺杂BaTiO_3：Pr ~（3+）荧光粉的发光强度显著提高。从对称性的观点解释了这一结果，这使得带-带跃迁的发生成为可能。
The effects of dopant Pr and codopant Ga on the luminescence of BaTiO3 phosphors have been investigated. The maximum luminescence intensity of red emission was observed at a Pr concentration of 0.011 mol %, which is a much lower concentration than those in previous reports on the luminescence characteristics of phosphors. Ga codoping into BaTiO3:Pr3+ phosphors results in a marked increase in luminescence. This result has been interpreted from the viewpoint of symmetry, which makes the occurrence of band-to-band transition probable.