Eu3+/Eu2+掺杂荧光粉中的电荷转移和铕捕获激子态

International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014) Pub Date : 2014-05-26 DOI:10.1109/OMEE.2014.6912370

A. Baran, S. Mahlik, M. Grinberg, J. Barzowska, K. Szczodrowski, S. I. Kim, H. Seo

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引用次数: 1

摘要

研究了温度对掺杂Eu3+和Eu2+的LiMgPO4和β-Ca2SiO4发光性能的影响。在β-Ca2SiO4:Eu2+/Eu3+中，Eu3+在Ca2+位点上的短距离补偿和在LiMgPO4:Eu2+/Eu3+中Mg2+或其他位点上的长距离补偿是导致两种材料发光温度行为不同的原因。讨论了费米能级能量的重要性。

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Charge transfer and europium trapped exciton states in Eu3+/Eu2+ doped phosphors

Effects of temperature on the luminescence of LiMgPO₄ and β-Ca₂SiO₄ doped with Eu³⁺ and Eu²⁺ is presented. The short distance compensation of the Eu³⁺ in the Ca₂+ sites in β-Ca₂SiO₄:Eu²⁺/Eu³⁺ and the long distance compensation of Eu³⁺ in the Mg²⁺ or other sites in LiMgPO₄:Eu²⁺/Eu³⁺ is responsible for different temperature behaviour of the luminescence in both materials. The importance of the energy of the Fermi level is also discusses.

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International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)

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