Synthesis and Characterization of Sn Coating on MWCNT Using DBA as a Capping Agent

M. W. Frischa, Kwang Lung Lin

Research output: Contribution to journalArticlepeer-review

Abstract

The good conductivity and low melting temperature of Sn is beneficial for interconnect applications. This study was an attempt to optimize the Sn coating process on multi-walled carbon nanotubes (MWCNTs) (Sn/MWCNT). Sn/MWCNT was synthesized from SnCl2 solution using 3,5-diaminobenzoic acid (DBA) as the capping agent with varying mass ratios. MWCNTs were dispersed in a DBA solution incorporating 83% polyphosphoric acid and phosphorus pentoxide (P2O5) while being purged with N2. The DBA-MWCNT suspension was then added into the SnCl2 solution, followed by titration with a NaBH4 solution to produce a uniform Sn coating. The Sn/MWCNTs were analyzed using scanning electron microscope-energy dispersive x-ray spectroscopy, transmission electron microscopy, raman spectroscopy, thermogravimetric analysis and fourier transform infrared spectroscopy. The influence of DBA addition on Sn coating performance was investigated. The Sn-coated MWCNTs exhibited enhancement in resistance to thermal decomposition, as indicated by an increasing decomposition temperature compared to that of pristine MWCNTs.

Original languageEnglish
JournalJournal of Electronic Materials
DOIs
Publication statusAccepted/In press - 2015 Oct 28

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Materials Chemistry

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