Abstract
Understanding the transport across the contact between a metal electrode and ZnO is a key issue to fabricating high performance ZnO nanowire-based nanodevices. In this study, we have characterized the contact between the focused-ion-beam-microscopy-deposited Pt and ZnO nanowires. The dominant transport mechanism of the contact is the thermionic field emission (TFE) process. It is found that the presence of Ga plays an important role to tune the thermionic emission into TFE transport. The discovered phenomena and underlying mechanisms are not only of broad scientific interests but also of great technological significance, since understanding the transport of semiconductor nanostructures paves the way to fabricate high performance of nanowire-based devices.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 197-204 |
| Number of pages | 8 |
| Journal | Materials Research Society Symposium Proceedings |
| Volume | 1142 |
| State | Published - 2009 |
| Externally published | Yes |
| Event | 2008 MRS Fall Meeting - Boston, MA, United States Duration: Dec 1 2008 → Dec 5 2008 |
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering