通过两种方法将有机小分子八羟基喹啉铝 (Alq3)嵌入到用阳极腐蚀法制备的多孔硅中。一是浸泡法 ,将新鲜的多孔硅浸泡于 Alq3的氯仿溶液中 ,通过物理吸附使 Alq3嵌入到多孔硅的纳米孔中 ;二是反应法 ,先将多孔硅浸泡于硫酸铝的水溶液中 ,再在其中加入八羟基喹啉的甲醇溶液 ,使它们在多孔硅的纳米孔中反应产生 Alq3。两种方法得到的 Alq3的光致发光光谱均较硅片上蒸镀的 Alq3的光致发光光谱有所蓝移 ,半高宽有所减小。反应法比浸泡法得到的光致发光强得多 The organic small molecule octahydroquinoline aluminum (Alq3) was embedded into the porous silicon prepared by anodic etching method by two methods. First, the soaking method, the fresh porous silicon immersed in Alq3 chloroform solution, by physical adsorption Alq3 embedded in porous silicon nanopores; Second, the reaction method, the first porous silicon immersed in an aqueous solution of aluminum sulfate, and then A solution of octahydroquinoline in methanol was added thereto to react them in the nanopore of porous silicon to produce Alq3. The photoluminescence spectra of Alq3 obtained by the two methods all showed a blue shift compared with the photoluminescence spectra of Alq3 deposited on Si wafer, and the FWHM decreased. The reaction method is much stronger than the photoluminescence obtained by the soaking method