Study of the structural change due to heat-treatment in high resistivity electroless NiPC film

Tetsuya Osaka, Taichi Higashikawa, Atsushi Iizuka, Madoka Takai, Man Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Structural changes caused by heat-treatment of newly developed electroless NiPC films were investigated. The NiPC films containing a few atom percent of carbon, which exhibit an exceptionally high resistivity (p) and an excellent temperature coefficient of resistance value were prepared by using diethylenetriamine and β-alanine as complexing agents. The p value of this film decreased upon heat-treatment. The differential scanning calorimetry measurements showed that the NiPC films exhibit peaks which are distinct from the peaks of the conventional NiP film. The X-ray diffraction results indicated that these peaks could be associated with structural changes. In fact, observed crystallization temperatures of the NiPC films were higher than that of the NiP film. Gas components desorbed from the NiPC films during annealing were identified. It is evident that the NiPC films contain various organic elements and water. Transmission electron microscope bright-field images for the NiPC films reveal unique bean-like features. The bean-like features are retained even after crystallization and presumably affect the resistivity. The high resistivity is associated with organic elements incorporated in the film as well as the bean-like features.

Original languageEnglish
Pages (from-to)2419-2424
Number of pages6
JournalJournal of the Electrochemical Society
Volume145
Issue number7
Publication statusPublished - 1998 Jul

Fingerprint

heat treatment
Heat treatment
electrical resistivity
Crystallization
crystallization
alanine
Alanine
Differential scanning calorimetry
Electron microscopes
Carbon
heat measurement
electron microscopes
Gases
Annealing
X ray diffraction
Atoms
Temperature
annealing
scanning
temperature

ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Study of the structural change due to heat-treatment in high resistivity electroless NiPC film. / Osaka, Tetsuya; Higashikawa, Taichi; Iizuka, Atsushi; Takai, Madoka; Kim, Man.

In: Journal of the Electrochemical Society, Vol. 145, No. 7, 07.1998, p. 2419-2424.

Research output: Contribution to journalArticle

Osaka, Tetsuya ; Higashikawa, Taichi ; Iizuka, Atsushi ; Takai, Madoka ; Kim, Man. / Study of the structural change due to heat-treatment in high resistivity electroless NiPC film. In: Journal of the Electrochemical Society. 1998 ; Vol. 145, No. 7. pp. 2419-2424.
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