Gravure printed low voltage polymer transistors and inverters

We present a gravure printed low voltage transistor using commercial polymer materials. Patterned thin layers (down to 200 nm) were formed by single printing steps on polyethylene terephthalate substrates which had pre-patterned metal electrodes. Materials were air stable and there was no need for substrate or metal electrode pre-treatment. Good electrical performance with minimal hysteresis was achieved. Low voltage operation is demonstrated with inverter circuits, which operate down to 5 volts.