Polymer nanocomposite patterning by dip-pen nanolithography

Kandemir A. Ç., Erdem D., Ma H., Reiser A., Spolenak R.

Nanotechnology, cilt.27, sa.13, 2016 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Sayı: 13
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1088/0957-4484/27/13/135303
  • Dergi Adı: Nanotechnology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: dip-pen nanolithography, polymer nanocomposite, atomic force microscopy, surface patterning, polymer patterning, PEN-NANOLITHOGRAPHY, DIRECT DEPOSITION, INK, NANOSTRUCTURES, OLIGONUCLEOTIDES, NANOPARTICLES, FABRICATION, NANOWIRES, SURFACES
  • TED Üniversitesi Adresli: Hayır

Özet

© 2016 IOP Publishing Ltd.The ultimate aim of this study is to construct polymer nanocomposite patterns by dip-pen nanolithography (DPN). Recent investigations have revealed the effect of the amount of ink (Laplace pressure) on the mechanism of liquid ink writing. In this study it is shown that not only the amount of ink, but also physisorption and surface diffusion are relevant. After a few writing steps, physisorption and surface diffusion outweigh the influence of the amount of ink, allowing consistent patterning governed by dwell times and writing speeds. Polymer matrices can be utilized as a delivery medium to deposit functional particles. DPN patterning of polymer nanocomposites allows for local tuning of the functionality and mechanical strength of the written patterns in high resolution, with the benefit of pattern flexibility. Typically polymer matrices with volatile components are used as a delivery medium for nanoparticle deposition, with subsequent removal of loosely bound matrix material by heating or oxygen plasma. In our study, nanocomposite patterns were constructed, and the differences between polymer and nanocomposite patterning were investigated. Cross-sectional SEM and TEM analysis confirmed that nanoparticles can be deposited with the liquid-polymer ink and are evenly distributed in the polymer matrix.