Patterned by Printing—a New Approach to Printed Electronics
Abstract:Today's printed electronic elements are formed by printing the active materials in the desired patterns, requiring that the active materials be formulated into a printable form. We explore an alternative approach to printed electronics where the patterning is achieved by printing, but the active material is deposited via atomic layer deposition (ALD). We thus separate the ink-like requirements from the active materials requirements. In this “patterned by printing” approach to printed electronics, a director material is printed that inhibits the deposition of the functional material. The active material is globally applied but only deposits in the areas where the director is not present—and as such is patterned at the time of deposition. In our work, the active materials are deposited by an atmospheric pressure, roll-compatible spatial ALD (SALD) process. Details on the director materials and printing techniques are discussed, and results from thin film transistors (TFTs) will be presented.
Document Type: Research Article
Publication date: 2012-01-01
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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