Sun Jia-Lin, Zhao Xingchen, Zhu Jia-Lin
Department of Physics and Key Laboratory of Atomic and Molecular Nanoscience of Education Ministry, Tsinghua University, Beijing 100084, People's Republic of China.
Nanotechnology. 2008 Feb 27;19(8):085703. doi: 10.1088/0957-4484/19/8/085703. Epub 2008 Feb 4.
Macroscopically long Ag core/Ni shell nanoheterojunctions have been well prepared by a dynamic growth approach. The structure characterized in detail by scanning electron microscopy reveals that the Ag nanowire bundles are wrapped in Ni nanoshields and form multicore coaxial cable frames. Notable photoinduced voltage with a fine repeatability, for irradiation with a laser, is exhibited compared with the case for bulk Ag pole/Ni shell heterojunctions and Ag nanowire bundle/bulk Ni heterojunctions. The prominent photoinduced voltage and the substantial metal nanoscale Ohmic interconnects provided by this kind of nanoheterojunction may have a wide range of applications in the future.
