Lindblad A, Bergersen H, Rander T, Lundwall M, Ohrwall G, Tchaplyguine M, Svensson S, Björneholm O
Dept. of Physics, Uppsala University, Box 530, SE-751 21, Uppsala, Sweden.
Phys Chem Chem Phys. 2006 Apr 28;8(16):1899-905. doi: 10.1039/b517083d. Epub 2006 Mar 2.
Heterogeneous clusters created by doping Ar host clusters with Kr or Xe are shown to have radically different structures from the mixed clusters of the same type created by co-expansion of Ar-Kr or Ar-Xe gas mixtures. In contrast to the co-expansion case, the doped mixed clusters can be produced with Kr or Xe on the surface and Ar in the bulk. With the doping technique it is thus possible to control the surface composition of a specific cluster. A study of the cluster properties as a function of the doping pressure is also reported for the case of Ar clusters doped with Xe. The clusters have been studied by means of synchrotron radiation based X-ray photoelectron spectroscopy.
通过用氪或氙掺杂氩主体团簇所形成的异质团簇，与通过共膨胀氩 - 氪或氩 - 氙气体混合物所形成的相同类型的混合团簇相比，具有截然不同的结构。与共膨胀情况相反，掺杂的混合团簇可以使氪或氙在表面而氩在主体中。因此，利用掺杂技术可以控制特定团簇的表面组成。对于用氙掺杂的氩团簇，还报道了一项关于团簇性质随掺杂压力变化的研究。这些团簇已通过基于同步辐射的X射线光电子能谱进行了研究。
