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Journal ArticleDOI

High-Resolution Inkjet Printing of All-Polymer Transistor Circuits

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TLDR
It is shown that the use of substrate surface energy patterning to direct the flow of water-based conducting polymer inkjet droplets enables high-resolution definition of practical channel lengths of 5 micrometers, and high mobilities were achieved.
Abstract
Direct printing of functional electronic materials may provide a new route to low-cost fabrication of integrated circuits. However, to be useful it must allow continuous manufacturing of all circuit components by successive solution deposition and printing steps in the same environment. We demonstrate direct inkjet printing of complete transistor circuits, including via-hole interconnections based on solution-processed polymer conductors, insulators, and self-organizing semiconductors. We show that the use of substrate surface energy patterning to direct the flow of water-based conducting polymer inkjet droplets enables high-resolution definition of practical channel lengths of 5 micrometers. High mobilities of 0.02 square centimeters per volt second and on-off current switching ratios of 10 5 were achieved.

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Citations
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Journal ArticleDOI

Uniaxial Alignment of Conjugated Polymer Films for High‐Performance Organic Field‐Effect Transistors

TL;DR: An overview on the processing-structure-property relationships that enable the controlled and uniform alignment of polymer films over large areas with scalable processes is provided with a focus on specific molecular structures, such as planarized backbones with a reduced degree of conformational disorder, solution formulation with controlled aggregation, and deposition techniques inducing suitable directional flow.
Journal ArticleDOI

Inkjet printed (bio)chemical sensing devices

TL;DR: It is demonstrated that inkjet printing is already a routine tool for the fabrication of some (bio)chemical sensing devices, but also that novel applications are being continuously developed.
Journal ArticleDOI

Completely Printed, Flexible, Stable, and Hysteresis-Free Carbon Nanotube Thin-Film Transistors via Aerosol Jet Printing

TL;DR: In this paper, the authors reported hysteresis-free carbon nanotube thin-film transistor (CNT-TFTs) fabricated entirely using an aerosol jet printing technique; this includes the printing of all layers: semiconducting CNTs, metallic electrodes and insulating gate dielectrics.
Journal ArticleDOI

Patterning organic–inorganic thin-film transistors using microcontact printed templates

TL;DR: In this paper, a simple, low-cost, and parallel fabrication of patterned organic-inorganic thin-film transistors (TFTs) by microcontact printing a molecular template on the substrate surface prior to film deposition is reported.
Patent

Appendage Mountable Electronic Devices COnformable to Surfaces

TL;DR: In this article, a flexible or stretchable substrate has an inner surface for receiving an appendage and an opposed outer surface that is accessible to external surfaces, and the electronic device in combination with the substrate provides a net bending stiffness to facilitate conformal contact between the inner surface and a surface of the appendage provided within the enclosure.
References
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Journal ArticleDOI

Two-dimensional charge transport in self-organized, high-mobility conjugated polymers

TL;DR: In this article, the authors used thin-film, field effect transistor structures to probe the transport properties of the ordered microcrystalline domains in the conjugated polymer poly(3-hexylthiophene), P3HT.
Journal ArticleDOI

Integrated Optoelectronic Devices Based on Conjugated Polymers

TL;DR: An all-polymer semiconductor integrated device is demonstrated with a high-mobility conjugated polymer field-effect transistor driving a polymer light-emitting diode (LED) of similar size, which represents a step toward all- polymer optoelectronic integrated circuits such as active-matrix polymer LED displays.
Journal ArticleDOI

Ultrahigh-Density Nanowire Arrays Grown in Self-Assembled Diblock Copolymer Templates

TL;DR: A simple, robust, chemical route to the fabrication of ultrahigh-density arrays of nanopores with high aspect ratios using the equilibrium self-assembled morphology of asymmetric diblock copolymers is shown.
Journal ArticleDOI

All-polymer field-effect transistor realized by printing techniques

TL;DR: A field-effect transistor has been fabricated from polymer materials by printing techniques, which shows high current output, and opens the way for large-area, low-cost plastic electronics.
Journal ArticleDOI

A soluble and air-stable organic semiconductor with high electron mobility

TL;DR: A crystallographically engineered naphthalenetetracarboxylic diimide derivative is reported that allows us to fabricate solution-cast n-channel FETs with promising performance at ambient conditions and to produce a complementary inverter circuit whose active layers are deposited entirely from the liquid phase.
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