Semiconductor Nanowires

  • show all 0 hide
This is an excerpt from the content

Introduction to Nanowires

With the development of contemporary science and technology, one needs to synthesize and to well understand new materials of reduced dimensionality, such as two-dimensional quantum wells and one-dimensional wires, or zero-dimensional quantum dots. In the past few years, progress has been achieved in the synthesis, structure characterization, and physical property investigation of nanowires. A variety of quasi one-dimensional nano-sized materials, such as carbon nanotubes (Iijima, 1991), porous silicon (Canham, 1990), GaAs nanowires (Hiruma, et al., 1995), GaN nanorods (Han, et al., 1997a), and Si and Ge nanowires (Yu, et al., 1998a; 1998b; Morales, Lieber, 1998), GeO2 (Bai, et al., 1999), SiO2 (Yu, et al., 1998c), Ga2O3 (Zhang, et al., 1999) nanowires, and some metal nanowires have been synthesized (Martin, 1996; Wang, et al., 1996; Peng, et al., 1999). Due to their peculiar structure characteristics and size effect, these materials often show some novel physic ...