Pyramid-Shape Tris(8-hydroxyquinoline) Aluminum Schottky Diode

摘要

We fabricated pyramid-shape tris(8-hydroxyquinoline) aluminum (Alq3) via a microemulsion process. The Alq3 Schottky diode with a single pyramid-shape Alq3 across the Ag electrodes was demonstrated. Rectifying and negative differential resistance (NDR) behavior with large peak-to-valley (PV) ratio of the device was obtained. The NDR behavior of the device was presented when the forward bias exceeded 4 V, and the PV ratio in the current was more than 10 at room temperature. The NDR behavior in the device was discussed. This work further suggests that the organic semiconductor can be synthesized to further explore applications for advanced electronic device.