通过本体聚合法，制备出以聚甲基丙烯酸甲酯（PMMA）为基底的PbSe量子点光纤材料PbSe/PMMA。用透射电镜（TEM）观测了PMMA中PbSe量子点的形貌特征，用紫外可见近红外分光光度仪和荧光光谱仪分析了吸收谱和荧光发射(PL)谱。结果表明，PbSe/PMMA材料中生成的PbSe量子点为近似球形、边界明晰、分布均匀和内部晶相结构明显。量子点尺寸主要与PbO与Se之间的反应温度有关，且随反应温度的增高而增大。在1064 nm激发光照射下，观测到有强的荧光辐射，其辐射峰的半峰全宽为100~300 nm，峰值波长1431~2365 nm。峰值波长与量子点尺寸密切相关，辐射与吸收波长峰值存在15~72 nm的斯托克斯频移。

PbSe quantum dot-doped polymethyl methacrylate (PbSe/PMMA QD) fiber material is prepared by using a bulk polymerization method. The crystallization, size and distribution of the PbSe/PMMA are investigated by transmission electron microscopy (TEM). The absorption and photoluminescence (PL) spectra of the PbSe/PMMA are also observed by an ultraviolet (UV)-visible-near-infrared spectrophotometer and a fluorescence spectrometer, respectively. Results show that PbSe QD are distributed uniformly in the PMMA basement. The generated QD size increases as the reaction temperature of PbO and Se increases. Strong PL emission is observed in the experiment with full width at half maximum (FWHM) achieving in the range of 100~300 nm, and peak wavelength locating in the range of 1431~2365 nm. Depending closely on the QD size, the Stokes shift of 15~72 nm is observed between the absorption peak and PL peak.