title: Templated assembly of metal nanoparticles in nanoimprinted patterns for metal nanowire fabrication.
abstract: We have developed a new method that combines nanoimprint lithography and metal nanoparticle solution processing for fabricating metal nanowires. A polymer template with nanoscale features, fabricated by nanoimprint lithography, provided physical reservoirs which were filled with a silver nanoparticle solution during the spin-coating. After the lift-off process, the defined silver nanoparticle patterns were annealed to enhance the conductivity for use as electrodes. Silver nanowire patterns (500 nm linewidth with a 300 nm gap) were fabricated without using an expensive high-vacuum system for metal deposition. This method demonstrated pattern resolution enhancement compared with ink-jet printing which inherently suffers from ink spreading on the substrate surface. By using this method, organic thin film transistors composed of the solution-processed silver source/drain electrodes with a channel length of 300 nm were fabricated and showed comparable behaviors to those with vacuum-deposited electrodes.
authors: Department of Materials Science and Engineering and Program for Integrated System, Gwangju Institute of Science and Technology, Gwangju, Korea.
authors: Eun-Uk
authors: EU
authors: Kim
authors: Kang-Jun
authors: KJ
authors: Baeg
authors: Yong-Young
authors: YY
authors: Noh
authors: Dong-Yu
authors: DY
authors: Kim
authors: Takhee
authors: T
authors: Lee
authors: Inkyu
authors: I
authors: Park
authors: Gun-Young
authors: GY
authors: Jung