CdSe半导体纳米团簇在Y型沸石中的制备及其研究

The preparation and study of CdSe semiconductor clusters in zeolite Y

利用沸石分子筛中规则的孔洞,制备了CdSe半导体纳米团簇样品。正电子湮没寿命谱及高分辨透射电子显微镜表明CdSe团簇生长在沸石的笼内以及沸石的表面,随着CdSe在沸石分子筛中质量比的增加,CdSe更多的聚集在沸石的表面。

Using these channels and voids as templates, we have prepared CdSe nanoclusters in zeolite Y. The results of positron annihilation lifetime measurements and the observation by high-resolution transmission electron microscopy indicate CdSe cluster are located in supercages, sodalite cages and surfaces of zeolites. As CdSe loading concentration increases, CdSe clusters assemble on surfaces of zeolite Y.