Surface electronic properties of discontinuous pd films during hydrogen exposure

Ming Zhao, Shinji Nagata, Tatsuo Shikama, Aichi Inouye, Shunya Yamamoto, Masahito Yoshikawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

This paper explored the change in the surface resistance of the discontinuous palladium (Pd) films during hydrogen exposure. In our experiments, we observed a remarkable rise in the electrical resistance of the discontinuous film which consists of nano-sized particles, when it was exposed to thin hydrogen. By studying the resistance change ratio before and after hydrogen exposure, we have found that it demonstrates an inverse exponential relationship with the ratio of on-film particle radius to the inter island separation. This suggests that the change in the film resistance under hydrogen exposure is primarily associated with the variation of surface work function which is caused by the hydrogen absorption on the Pd surface.

Original languageEnglish
Article number01BE08
JournalJapanese journal of applied physics
Volume50
Issue number1 PART 3
DOIs
Publication statusPublished - 2011 Jan 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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