采用溶胶凝胶法合成ＺｎＳ∶ＴＭ（ＴＭ＝ Ｍｎ， Ｃｕ）水溶胶， 研究了它们的光学性质． 通过吸收光谱计算得到微粒的尺寸约为３～４ｎｍ ． 光致发射光谱中给出了所对应掺杂中心的发射带， 其能量来源于基质ＺｎＳ的吸收． 通过旋涂法制备了ＺｎＳ∶Ｃｕ 纳米微粒ＥＬ器件， 测定了其启动电压和耐压值以及ＥＬ光谱强度与电压的关系， 初步探讨了可能的发光机理 ZnS:TM (TM = Mn, Cu) aqueous sols were synthesized by sol-gel method and their optical properties were studied. The size of the particles calculated by absorption spectrum is about 3 ~ 4nm. The photoemission spectrum shows the emission band of the corresponding doping center, whose energy is derived from the absorption of matrix ZnS. The ZnS:Cu nanoparticle EL devices were prepared by spin-coating method. The relationship between the starting voltage, the breakdown voltage and the intensity of EL spectra and the voltage were measured. The possible luminescent mechanism