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采用一种简单的低温固相法制备了YF3∶Yb,Er纳米晶,重点探究了烧结温度、烧结时间对纳米晶微结构及发光性能的影响。通过XRD、SEM和FA对样品进行了表征。XRD结果表明:烧结温度达到400℃,烧结时间达到1h,即可获得正交相的YF3∶Yb,Er纳米晶;SEM分析表明:制备的YF3∶Yb,Er纳米晶呈现光滑的类球形,粒径随烧结温度升高及烧结时间增加而变大;FA结果显示:在980nm红外激光激发下,样品的可见光发射峰分别位于波长409、524、547和657nm处,其强度与烧结温度、烧结时间正相关。
YF3: Yb and Er nanocrystals were prepared by a simple low temperature solid state method. The effects of sintering temperature and sintering time on the microstructure and luminescent properties of nanocrystals were investigated. The samples were characterized by XRD, SEM and FA. The XRD results show that the YF3: Yb, Er nanocrystals in the orthorhombic phase can be obtained when the sintering temperature reaches 400 ℃ and the sintering time reaches 1 h. SEM analysis shows that the prepared YF3: Yb, Er nanocrystals exhibit smooth spheroidal shape, The results show that the visible light emission peaks of the samples are located at the wavelengths of 409, 524, 547 and 657 nm respectively under the excitation of 980 nm infrared laser, the intensity and the sintering temperature, the sintering time Positive correlation.