Hybrid materials-based rectifying diode fabricated by printing on a flexible substrate
Lin J., Cui Z.
In recent years, printing has received substantial attentions both in research community and industrial sectors for realizing low-cost and flexible electronics. One of the most critical components in printed flexible electronic circuits is the rectifying diode, which is proved to be extremely difficult due to problems in materials choice and printing. In this paper, we report to use hybrid materials based on poly-(3,4-ethylenedioxythiophene) (PEDOT) and copper phthalocyanine (CuPc) as active layer for printing diodes on a flexible substrate, though CuPc has poor solubility in most solvents. The current-voltage characteristics demonstrated that the printed diode has rectification ratio over 1000. These preliminary results are leading to deeper understanding of the hybrid CuPc material and its properties in printed flexible electronic devices.