A Lattice‐Strained Organic Single‐Crystal Nanowire Array Fabricated via Solution‐Phase Nanograting‐Assisted Pattern Transfer for Use in High‐Mobility Organic Field‐Effect Transistors

Abstract

A 50 nm-wide 6,13-bis(triisopropylsilylethynyl) pentacene nanowire (NW) array is fabricated on a centimeter-sized substrate via a facile nanograting-assisted pattern-transfer method. NW growth under a nanoconfined space adopts a lattice-strained packing motif of the NWs for strong intermolecular electronic coupling, and thus a NW-based organic field-effect transistor shows high field-effect mobility up to 9.71 cm(2) V(-1) s(-1) .

Geometrically Structured Nanomaterials for Nanosensors, NEMS, and Nanosieves

“…Copyright 2015, American Chemical Society. Second image to the left in the Template‐based hybrid approach box and OFET image : Reproduced with permission 71. Copyright 2016, Wiley‐VCH.…”

“…124–128 More recently, structuralizing nanomaterials based on a template have been actively researched to make precisely arranged structure with high throughput and cost effectiveness. A template is utilized to guide the material to the predefined form of the template to make nanomaterial structures with high resolution over a large area by applying simple processes, such as deposition or synthesis 5,64–76. In addition, the template‐based method is easy to combine with a transfer method, enabling the structuralization of nanomaterials on flexible and stretchable substrates 129,130.…”

“…The prepatterned sidewall is used to place the self‐assembly in a specific place and help the self‐assembly guide to be aligned, in sub‐65 nm hole patterns with a space of 10 nm (lower‐left quadrant in Figure 1). 70 Another method is guiding the dispersed materials in a solvent directly into the nanoscale trenches 71. In solution‐based material synthesizing methods, perfectly ordered structures with high crystallinity are almost impossible to achieve because of difficulty in controlling the shape of the liquid and solvent together.…”

“…The great interest in and demand for these nanomaterials have led to the development of diverse fabrication processes to produce them 54–63. Conventionally, nanomaterials have been synthesized based on bottom‐up processes, but more recently, there has been huge interest in advanced fabrication processes, including top‐down fabrication and hybrid fabrication combining bottom‐up and top‐down approaches to achieve high throughput and cost‐effectiveness, eventually finding a way to the industrialization of nanomaterials 5,64–76…”

Contact line curvature-induced molecular misorientation of a surface energy patterned organic semiconductor in meniscus-guided coating

“…Great expectations for next-generation electronics have prompted active research on solution-processed organic thin-film transistors (OTFTs) which can be front-running candidates for low-cost, large-area device manufacturing, and flexible active-matrix displays and sensors [1][2][3] . High electrical performance beyond that of amorphous silicon TFTs has been achieved in solution-processed OTFTs through the tuning of small molecule organic semiconductors (OSCs) [4][5][6][7] . One of the best tuning methods is to control the solution coating.…”