Direct Patterning of Organic-Thin-Film-Transistor Arrays via a “Dry-Taping” Approach



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Dry patterning of a variety of solution- and vapor-deposited small-molecule organic semiconductors using adhesive tape is demonstrated. This technique allows direct fabrication of large-area arrays of bottom-contact high-performance organic- thin-film field-effect transistors with self-aligned electrodes. These patterned devices exhibit significantly higher on/off ratios and lower parasitic leakage currents than control unpatterned devices of the same materials.