| Autor: |
Chihaya Adachi, Akio Toshimitsu, Takayoshi Takahashi, Tomo Sakanoue, Jeremy Burroughes, Noriyuki Shimoji, Yoshiaki Oku, Masayuki Yahiro |
| Jazyk: |
angličtina |
| Rok vydání: |
2008 |
| Předmět: |
|
| Zdroj: |
APPLIED PHYSICS LETTERS. 92(5) |
| ISSN: |
0003-6951 |
| Popis: |
We developed an alignment-free process for asymmetric contacts of Au and Al and applied it to light-emitting organic field-effect transistors. Because electrons were injected efficiently from Al contacts, the emission intensity and onset voltages for light were significantly better than those in a device with conventional Au/Cr contacts. Moreover, a device with 1 µm channel length asymmetric contacts of Au and Al showed about 50 times higher current than that of the device with conventional Au/Cr contacts. This significant improvement can be ascribed to both dual space-charge formation of holes and electrons and low carrier injection barriers. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
