Rheology and stability kinetics of bare silicon nanoparticle inks for low-cost direct printing

Priyesh V. More, Sunho Jeong, Yeong Hui Seo, Seong Jip Kim, Sahn Nahm, Beyong Hwan Ryu, Youngmin Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Highly dispersed and stable silicon nanoparticles ink is formulated for its application in direct printing or printable electronics. These dispersions are prepared from free-standing silicon nanoparticles which are not capped with any organic ligand, making it suitable for electronic applications. Silicon nanoparticles dispersions are prepared by suspending the nanoparticles in benzonitrile or ethanol by using polypropylene glycol (PPG) as a binder. All the samples show typical shear thinning behavior while the dispersion samples show low viscosities signifying good quality dispersion. Such thinning behavior favors in fabrication of dense films with spin-coating or patterns with drop casting. The dispersion stability is monitored by turbiscan measurements showing good stability for one week. A low-cost direct printing method for dispersion samples is also demonstrated to obtain micro-sized patterns. Low electrical resistivity of resulting patterns, adjustable viscosity and good stability makes these silicon nanoparticles dispersions highly applicable for direct printing process.

Original languageEnglish
Title of host publication3rd International Advances in Applied Physics and Materials Science Congress
PublisherAmerican Institute of Physics Inc.
Pages141-145
Number of pages5
Volume1569
ISBN (Electronic)9780735411975
DOIs
Publication statusPublished - 2013 Jan 1
Event3rd International Advances in Applied Physics and Materials Science Congress, APMAS 2013 - Antalya, Turkey
Duration: 2013 Apr 242013 Apr 28

Other

Other3rd International Advances in Applied Physics and Materials Science Congress, APMAS 2013
CountryTurkey
CityAntalya
Period13/4/2413/4/28

Keywords

  • direct-printing
  • dispersion stability
  • ink
  • resistivity
  • Silicon nanoparticles
  • turbiscan
  • viscosity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    More, P. V., Jeong, S., Seo, Y. H., Kim, S. J., Nahm, S., Ryu, B. H., & Choi, Y. (2013). Rheology and stability kinetics of bare silicon nanoparticle inks for low-cost direct printing. In 3rd International Advances in Applied Physics and Materials Science Congress (Vol. 1569, pp. 141-145). American Institute of Physics Inc.. https://doi.org/10.1063/1.4849245