Abstract

Flexible electronics offer exciting prospects for devices that could be rolled up, folded, or worn. Conventional methods for printing electronics on plastic films, such as gravure or inkjet techniques, use special inks made of organic semiconductors in environmentally unfriendly solvents. The authors demonstrate that thin-film transistors can be fabricated by the principle of laser printing, based on toner rather than solvent, in a digital process akin to that of 3D printing. As a next step, the authors envision all-toner printing of not just the semiconductor, but also metal electrodes and insulator layers.

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