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Synthesis and characterization of Er:Yb3Al5O12 nanopowder

机译:Er:Yb3Al5O12纳米粉的合成与表征

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Er:Yb1Al5O12 (Er:YbAG) nanopowder was prepared by carbonate coprecipitation method. Highpurity Er:YbAG powder was obtained after calcination at as low as 1000A degrees C with an average particle size of 70 nm. The Al-O-Yb phonon vibrations were investigated and the absorption band arisen from interaction between lattice vibration and photon in YbAG is located around 610 cm(-1). A strong emission peak of powder was observed at 1.53 A mu m with 980 nm laser excitation. An energy transfer mechanism between Yb3+ and Er3+ states responsible for the peak emission was proposed. An optimum Er3+ dopant concentration was determined.
机译:通过碳酸盐共沉淀法制备了Er:Yb1Al5O12(Er:YbAG)纳米粉。在低至1000A的温度下煅烧后获得高纯度的Er:YbAG粉,平均粒径为70 nm。研究了Al-O-Yb声子振动,YbAG中晶格振动和光子之间相互作用产生的吸收带位于610 cm(-1)附近。在980nm的激光激发下,在1.53μm处观察到粉末的强发射峰。提出了Yb3 +和Er3 +态之间负责峰发射的能量转移机制。确定了最佳的Er3 +掺杂剂浓度。

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