微波辅助共沉淀法制备橙红色Zn3(PO4)2: Eu3+, Gd3+发光材料及其性能研究
首发时间:2016-05-17
摘要:本文采用微波辅助共沉淀法制备了橙红色Zn3(PO4)2: Eu3+, Gd3+发光材料,对其物相和发光性能进行了表征,并探讨了Gd3+-Eu3+在Zn3(PO4)2体系中的能量传递过程。研究结果表明:在煅烧温度为900℃时保温15min即可制备出Zn3(PO4)2: 0.24Eu3+, 0.30Gd3+的橙红色发光材料。Gd3+-Eu3+之间的非辐射能量传递和Eu3+-O2-电荷迁移跃迁的协同作用,提高了Eu3+离子的发射强度。样品在77 K-423 K的测试温度下,表现出良好的发光热稳定性。
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Synthesis and luminescence properties of orange-red Zn3(PO4)2: Eu3+, Gd3+ phosphor for microwave-assistant co-precipitation method
Abstract:Novel orange-red light emitting phosphor Zn3(PO4)2: Eu3+, Gd3+ was synthesized by the microwave-assistant co-precipitation method and characterized by X-ray powder diffraction and photoluminescence spectroscopy. The Gd3+-Eu3+ in Zn3(PO4)2 system in the energy transfer process are also discussed in detail. When the calcination temperature is 900℃ hold temperature for 15 min was Zn3(PO4)2: 0.24Eu3+, 0.30Gd3+ orange red phosphor luminescence intensity is the best. The no-radiation energy transfer between Gd3+-Eu3+ and Eu3+-O2- charge transfer transition synergies are improved the Eu3+ ion emission intensity. The novel phosphor showed weak thermal quenching and excellent luminescence properties, and are therefore of high potential as orange-red phosphor in lighting field.
Keywords: Microwave-assistant method Rare earth doped Energy transfer
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微波辅助共沉淀法制备橙红色Zn3(PO4)2: Eu3+, Gd3+发光材料及其性能研究
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