CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
|
|
|
|
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
|
|
Cite this article: |
TAN Yu, WANG Yan-Guo 2013 Chin. Phys. Lett. 30 017902 |
|
|
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.
|
|
Received: 05 September 2012
Published: 04 March 2013
|
|
PACS: |
79.70.+q
|
(Field emission, ionization, evaporation, and desorption)
|
|
68.37.Hk
|
(Scanning electron microscopy (SEM) (including EBIC))
|
|
81.07.De
|
(Nanotubes)
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|