High-Performance, All-Solution-Processed Organic Nanowire Transistor Arrays with Inkjet-Printing Patterned Electrodes

Abstract

Organic nanowire (NW) transistor arrays with a mobility of as high as 1.26 cm(2)·V(-1)·S(-1) are fabricated by combining the dip-coating process to align the NW into arrays with the inkjet printing process to pattern the source/drain electrodes. A narrow gap of ~20 μm has been obtained by modifying the inkjet process. The all-solution process is proven to be a low-cost, high-yield, simple approach to fabricating high-performance organic NW transistor arrays over a large area.

Morphology control strategies for solution-processed organic semiconductor thin films

“…Another method to achieve alignment over a large area is to orient existing single crystals carried in the solution using ow eld. [111][112][113][114] The crystals aligned in this fashion are oen highly anisotropic in their shape, such as in the form of microwires. For example, a ltration-and-transfer (FAT) method was developed, which allows for efficient alignment of organic wires with controllable density over a large area ( Fig.…”

Source-gated transistors for order-of-magnitude performance improvements in thin-film digital circuits

“…Research has concentrated on improving material properties and refining device design, in order to improve power efficiency1, speed of operation2345 and stability of performance during and after electrical56 and mechanical78 stress. New forms of air-stable semiconductor materials, which allow low-temperature deposition from solution349101112, have been invented. Concurrently, conventional large-area technologies are being adapted to permit processing on plastic substrates with minimal performance loss213.…”

Growing low-dimensional supramolecular crystals directly from 3D particles

“…[10][11][12][13][14][15] Functional nanosystems, like nano-scale transistors, are created by the self-assembling of small organic molecules via programmable non-covalent interactions, as hydrogen bonding, Van-der-Waals, π-π stacking, and electrostatics. [10][11][12][13][14][15] Today's standard technologies for the bottom-up assembly of supramolecular arrays are mainly based either on vapour deposition 16 or on liquid phase deposition techniques. 17 However, processing organic semiconductors via vapour deposition methods, like the organic molecular beam deposition, [17][18] is often challenging due to their thermal instability during the vacuum sublimation process.…”