| 초록 |
Solution processed conjugated molecules enable to manufacture low cost various electronic devices by unconventional patterning methods such as inkjet, screen, or gravure printing with high throughput. Although the OFETs using conjugated molecules as an active layer are not suitable for electronics requiring high charge carrier mobility due to intrinsic limitation of those materials, the advantage in manufacturing processes make them ideal for large-area, flexible, and disposable electronic devices such as drivers for flexible or transparent displays, digital circuits for RFID tags, sensors, and memories. Here we demonstrate high performance inkjet printed p-channel and n-channel top-gate/bottom-contact polymer FETs, and applications to elementary organic complementary CMOS and ring oscillator circuits. We have obtained high field-effect mobility more than 0.1 cm2/Vs for both of p-channel and n-channel FETs, and the CMOS polymer ring oscillator showed high operating frequency of 10 KHz. |
