Elimination of the Schottky Barrier at an Au-ZnSe Nanowire Nanocontact via in Situ Joule Heating
TAN Yu1, WANG Yan-Guo2**
1Science College, Hunan Agricultural University, Changsha 410128 2Beijing Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P. O. Box 603, Beijing 100190
Abstract：In order to improve electron transport, in situ Joule heating of an Au-ZnSe nanowire-Au (M-S-M) nanostructure is conducted inside transmission electron microscopy (TEM) until the Au metal is molten at the reversely biased Au-ZnSe nanowire (M-S) nanocontact. The observed microstructural evolution is responsible for the electron transport property changes, i.e. a nonlinear to linear transformation in the current-voltage (I–V) relationship was measured in situ before and after the Joule annealing. The linear characteristic in the I–V relationship confirms elimination of the Schottky barrier at the M-S nanocontact and formation of ohmic contacts. Consequently, electron transport at the M-S nanocontact can be significantly improved by the removal of the Schottky barrier via in situ Joule heating.
. [J]. Chin. Phys. Lett., 2013, 30(1): 17902-017902.
TAN Yu, WANG Yan-Guo. Elimination of the Schottky Barrier at an Au-ZnSe Nanowire Nanocontact via in Situ Joule Heating. Chin. Phys. Lett., 2013, 30(1): 17902-017902.
2013, Vol. 30 
