以Y2O3、Er2O3、乙二醇(EG)和NH4VO3作为反应前体, 使用液相共沉淀法在低温下制备了多孔状的绿色发光材料YVO4:Er纳米片. 将YVO4:Er纳米片在300℃和600℃加热2 h, 通过傅里叶红外光谱(FTIR)、X--射线衍射(XRD)、透射电镜(TEM)和荧光光谱(PL)对合成的YVO4:Er纳米片进行了表征, 研究了加热温度对最终样品的形貌及多孔尺寸的影响. 结果表明: 由于Er 3+的绿光发射, YVO 4:Er在560 nm处有最强的发射峰.
simple low-temperature synthesis route of fabricating porous YVO4:Er nanoplates via a chemical co-precipitation method using Y2O3, NH4 VO3, Er2 O3 and ethylene glycol as the reacting precursors was proposed. The as-synthesized YVO4: Er was thermally treated at 300 and 600 for 2 h. The obtained samples were characterized by FTIR, XRD, TEM and PL. The results revealed that the luminescence intensity was significantly increased with increasing annealing temperature.
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