title: Aerodynamically focused nanoparticle (AFN) printing: novel direct printing technique of solvent-free and inorganic nanoparticles.
abstract: Aerodynamically focused nanoparticle (AFN) printing was demonstrated for direct patterning of the solvent-free and inorganic nanoparticles. The fast excitation-purge control technique was proposed and investigated by examining the aerodynamic focusing of nanoparticles and their time-scale, with the analytical and experimental approaches. A series of direct patterning examples were demonstrated with Barium Titanate (BaTiO3) and Silver (Ag) nanoparticles onto the flexible and inflexible substrates using the AFN printing system. The capacitor and flexible conductive line pattern were fabricated as the application examples of the proposed technique. The results presented here should contribute to the nanoparticle manipulation, patterning, and their applications, which are intensely being studied nowadays.
authors.affiliation: Department of Mechanical and Aerospace Engineering and ‡Institute of Advanced Machinery and Design (IAMD), Seoul National University (SNU) , Seoul 151-742, Republic of Korea.
authors.forename: Gil-Yong
authors.initials: GY
authors.lastname: Lee
authors.forename: Jae-Il
authors.initials: JI
authors.lastname: Park
authors.forename: Chung-Soo
authors.initials: CS
authors.lastname: Kim
authors.forename: Hae-Sung
authors.initials: HS
authors.lastname: Yoon
authors.forename: Jinkyu
authors.initials: J
authors.lastname: Yang
authors.forename: Sung-Hoon
authors.initials: SH
authors.lastname: Ahn
keywords: aerodynamic focusing; direct printing; solvent-free nanoparticle; time-scaling