One-dimensional germanium nanostructures--formation and their electron field emission properties
Hung-Chi Wu1, Te-Chien Hou, Yu-Lun Chueh
1Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan, Republic of China.
Nanotechnology
|October 16, 2010
Abstract:
Ge nanostructures were synthesized by reduction of GeO(2) in H(2) atmosphere at various temperatures. Entangled and straight Ge nanowires with oxide shells were grown at high temperatures. Ge nanowires with various numbers of nodules were obtained at low temperatures. Ge nanowires without nodules exhibited remarkable field emission properties with a turn-on field of 4.6 V µm(-1) and field enhancement factor of 1242.
