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Laser‐Printed Organic Thin‐Film Transistors
Author(s) -
Diemer Peter J.,
Harper Angela F.,
Niazi Muhammad R.,
Petty Anthony J.,
Anthony John E.,
Amassian Aram,
Jurchescu Oana D.
Publication year - 2017
Publication title -
advanced materials technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.184
H-Index - 42
ISSN - 2365-709X
DOI - 10.1002/admt.201700167
Subject(s) - materials science , pentacene , thin film transistor , organic semiconductor , transistor , laser , substrate (aquarium) , optoelectronics , semiconductor , layer (electronics) , deposition (geology) , photonics , nanotechnology , thin film , organic electronics , printed electronics , inkwell , composite material , optics , electrical engineering , paleontology , oceanography , physics , engineering , voltage , sediment , geology , biology
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.