High-Resolution Printing of Various Electronic Materials by Electrophotography

Electrophotography is a digital, on-demand, dry, and page printing technique that operates based on toner particles of electronic materials using an electrostatic force and generates an electrical circuit via distribution of the toner particles. We developed a 10 mu m linewidth resolution with various electronic materials, including conductors, semiconductors, and insulators, without any chemical pretreatments on the substrate films, while a 5 mu m resolution was also possible for limited materials. The electrical resistivity of the printed Ag-Ni after an intense pulse light sintering was comparable to that of commercial indium tin oxide transparent films.