Effects of catalyst introduction methods on metal pattern structure and selectivity using dendrimer/polyelectrolyte multilayer coated substrates

Troy R. Hendricks, Ilsoon Lee

Research output: ResearchConference contribution

Abstract

Modern nano and microelectronic research is heading toward flexible substrates combined with inexpensive metal patterning techniques that have high selectivity. We demonstrate novel versatile processes for creating selective metal patterns on various substrates by utilizing various generations of dendrimers and/or polyelectrolyte multilayer (PEM) coatings, microcontact printing (uCP), and electroless and/or electro depositions. Optical microscopy, quartz crystal microbalance, atomic force microscopy, contact angle measurements, ellipsometry, electron microscopy and energy dispersive x-ray spectroscopy were used to analyze the selectivity and structure of the deposited metal (e.g., copper, nickel, and gold) that were created by different methods of patterning palladium catalysts on PEM surfaces. The different methods include direct stamping of the palladium catalyst, directed self-assembly of the catalyst, and encapsulation of the catalyst in a carrier molecule. In the directed self-assembly approach positively charged poly(amidoamine) (PAMAM) dendrimers were uCP onto a negatively charged surface and utilized as a template to direct the negatively charged catalyst to specific regions on the surface. Different generations of PAMAM dendrimers were used as carrier molecules to encapsulate palladium catalyst ions and nanoparticles before μCP onto the PEM surface. The direct catalyst stamping method was determined as the most selective method. The catalyst stamping method was further studied with electro or electroless deposition.

LanguageEnglish (US)
Title of host publicationAIChE Annual Meeting, Conference Proceedings
Pages1295
Number of pages1
StatePublished - 2005
Externally publishedYes
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: Oct 30 2005Nov 4 2005

Other

Other05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
CountryUnited States
CityCincinnati, OH
Period10/30/0511/4/05

Profile

Catalyst selectivity
Dendrimers
Polyelectrolytes
Multilayers
Catalysts
Substrates
Metals
Stamping
Palladium
Electrodeposition
Self assembly
Molecules
Electroless plating
Quartz crystal microbalances
Ellipsometry
Angle measurement
Encapsulation
Microelectronics
Electron microscopy
Contact angle

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Effects of catalyst introduction methods on metal pattern structure and selectivity using dendrimer/polyelectrolyte multilayer coated substrates. / Hendricks, Troy R.; Lee, Ilsoon.

AIChE Annual Meeting, Conference Proceedings. 2005. p. 1295.

Research output: ResearchConference contribution

Hendricks, TR & Lee, I 2005, Effects of catalyst introduction methods on metal pattern structure and selectivity using dendrimer/polyelectrolyte multilayer coated substrates. in AIChE Annual Meeting, Conference Proceedings. pp. 1295, 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States, 10/30/05.
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