Zener tunneling in one-dimensional organic semiconductors |
| |
Authors: | W Liu Z Sun SJ Xie |
| |
Institution: | a School of Physics, Shandong University, Jinan 250100, China b Department of Physics, Jining University, Qufu 273155, China |
| |
Abstract: | Tunneling effect in one-dimensional organic semiconductors in the presence of an external electric field is studied within the framework of a tight-binding model and a nonadiabatic dynamical method. It is found that under a high electric field, electrons can transit from the valence band (VB) to the conduction band (CB), which is demonstrated to be Zener tunneling in organic semiconductors. The results also indicate a field-induced insulator-metal transition accompanied by the vanishing of the energy gap. It is found that, after the field is turned off, the Peierls phase cannot be recovered. |
| |
Keywords: | 72 80 Le 71 30 +h |
本文献已被 ScienceDirect 等数据库收录! |
|