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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

Synthesis of Platinum Nanowires in Organic−Inorganic Mesoporous Silica Templates by Photoreduction: Formation Mechanism and Isolation

TL;DR: In this paper, the formation mechanism and isolation of the wires have been studied, and it is suggested that Pt ions migrate in the water/methanol phase and are catalytically reduced on Pt particles to grow to wires.
Journal ArticleDOI

Direct X-ray photoconversion in flexible organic thin film devices operated below 1 V.

TL;DR: This work proposes a model, based on the accumulation of photogenerated charges and photoconductive gain, able to describe the magnitude as well as the dynamics of the X-ray-induced photocurrent, and fabricate and test a flexible 2 × 2 pixelated X-rays detector.
Journal ArticleDOI

Calibrated NEXAFS spectra of common conjugated polymers.

TL;DR: A set of NEXAFS spectra from 23 semiconducting polymers and some related materials that are frequently used in organic device research are reported.
Journal ArticleDOI

X-ray diffraction study of the structure of thin polyfluorene films

TL;DR: In this paper, the molecular arrangement in thin films of poly(9,9-dioctylfluorene) and poly( 9, 9-dihexylfluoresine) deposited on silicon substrates has been investigated with grazing incidence X-ray diffraction.
Journal ArticleDOI

Benzodithiophene Copolymer—A Low‐Temperature, Solution‐Processed High‐Performance Semiconductor for Thin‐Film Transistors

TL;DR: In this paper, a self-assembled poly(4,8-didodecyl-2,6-bis-(3-methylthiophen-2-yl)-benzo[1,2-b:4,5-b′]dithiophene) self-assembles on appropriate substrates from solution and formed highly structured thin films at low temperatures.
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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