A method for preparing semiconducting porous germanium thin films was discussed. Quantum confinement effects of the nanowire skeleton and the state of the surface at the nanocrystal-oxide interface have been suggested to account for the visible luminescence of porous silicon. Relative to silicon, the excitation in germanium has larger effective Bohr radius, which causes quantum size effects to be achieved. It has been found that when the silicon nano-wire are annealed in hydrogen gas the bare nanowire tend to agglomerate.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering