Geng Jun, Liu Bo, Xu Lang, Hu Fang-Neng, Zhu Jun-Jie
Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, PR China.
Langmuir. 2007 Sep 25;23(20):10286-93. doi: 10.1021/la701299w. Epub 2007 Aug 24.
A convenient chemical conversion method that allows the direct preparation of nanocrystalline ZnE (E = O, S, Se) semiconductor spheres and hollow spheres as well as their core/shell structures is reported. By using monodisperse ZnO nanospheres as a starting reactant and in situ template, ZnS, ZnSe solid and hollow nanospheres, and ZnO/ZnS and ZnO/ZnSe core/shell nanostructures have been obtained through an ultrasound-assisted solution-phase conversion process. The formation mechanism of these nanocrystals is connected with the sonochemical effect of ultrasound irradiation. The photoluminescence and electrogenerated chemiluminescence properties of the as-prepared nanocrystals were investigated.
报道了一种便捷的化学转化方法，该方法能够直接制备纳米晶ZnE（E = O、S、Se）半导体球体、空心球体及其核壳结构。通过使用单分散的ZnO纳米球体作为起始反应物和原位模板，经由超声辅助的溶液相转化过程，已获得了ZnS、ZnSe实心和空心纳米球体以及ZnO/ZnS和ZnO/ZnSe核壳纳米结构。这些纳米晶体的形成机制与超声辐照的声化学效应相关。对所制备纳米晶体的光致发光和电致化学发光性质进行了研究。
