Scalability on roll-to-roll gravure printed dielectric layers for printed thin film transistors

The manufacture of thin film transistors with reliable electrical properties, via full-printing on plastic foils, is a key step for the realization of costless and flexible electronics. To reach this goal, the dielectric layers should be smooth and free from failure while maintaining a high capacitance. In this paper, the parameters, affecting the film quality and capacitance of dielectric layers in a roll-to-roll gravure process, were investigated and some parameters were optimized.