Laser‐Printed Organic Thin‐Film Transistors. Issue 11 (20th September 2017)

• Record Type: Journal Article
• Authors: Diemer, Peter J.; Harper, Angela F.; Niazi, Muhammad R.; Petty, Anthony J.; Anthony, John E.; Amassian, Aram; Jurchescu, Oana D.
• Is Part Of: Advanced materials technologies. Volume 2:Issue 11(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-09-20
• Subjects: charge carrier mobility -- organic semiconductors -- organic thin‐film transistors -- printed electronics; Materials science -- Periodicals; Technological innovations -- Periodicals; Materials science; Technological innovations; Periodicals; 620.1105
• DOI: 10.1002/admt.201700167
• Languages: English
• ISSNs: 2365-709X

Abstract

Abstract: Solution deposition of organic optoelectronic materials enables fast roll‐to‐roll manufacturing of photonic and electronic devices on any type of substrate and at low cost. But controlling the film microstructure when it crystallizes from solution can be challenging. This represents a major limitation of this technology, since the microstructure, in turn, governs the charge transport properties of the material. Further, the solvents typically used are hazardous, which precludes their incorporation in large‐scale manufacturing processes. Here, the first ever organic thin‐film transistor fabricated with an electrophotographic laser printing process using a standard office laser printer is reported. This completely solvent‐free additive manufacturing method allows for simultaneous deposition, purification, and patterning of the organic semiconductor layer. Laser‐printed transistors using triisopropylsilylethynyl pentacene as the semiconductor layer are realized on flexible substrates and characterized, making this a successful first demonstration of the potential of laser printing of organic semiconductors. Abstract : Organic thin‐film transistors are fabricated by laser printing and are characterized . This solvent‐free additive manufacturing method allows for simultaneous deposition, purification, and patterning of the organic semiconductor layer in field‐effect transistors realized on flexible substrates, making this a successful first demonstration of the use of laser printing for organic device processing.