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

*この研究の対応する著者

研究成果査読

3 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)2419-2424
ページ数6
ジャーナルJournal of the Electrochemical Society
145
7
DOI
出版ステータスPublished - 1998 7

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 再生可能エネルギー、持続可能性、環境
  • 表面、皮膜および薄膜
  • 電気化学
  • 材料化学

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