Abstract
A tunneling rectifier prepared from vertically stacked two-dimensional (2D) materials composed of chemically doped graphene electrodes and hexagonal boron nitride (h-BN) tunneling barrier was demonstrated. The asymmetric chemical doping to graphene with linear dispersion property induces rectifying behavior effectively, by facilitating Fowler-Nordheim tunneling at high forward biases. It results in excellent diode performances of a hetero-structured graphene/h-BN/graphene tunneling diode, with an asymmetric factor exceeding 1000, a nonlinearity of ∼40, and a peak sensitivity of ∼12V -1, which are superior to contending metal-insulator-metal diodes, showing great potential for future flexible and transparent electronic devices.
| Original language | English |
|---|---|
| Article number | 053103 |
| Journal | Applied Physics Letters |
| Volume | 104 |
| Issue number | 5 |
| DOIs | |
| State | Published - 3 Feb 2014 |