The platinum/titanium-nitride interface: X-ray photoelectron spectroscopy studies

Nikola Mati, Gary S. Chottiner, Frank Ernst, Daniel Alberto Scherson

研究成果: Conference contribution

抄録

X-ray photoelectron spectroscopy (XPS) has been used to examine the nature of the interactions between Pt and Ti nitride formed in situ by Ti deposition in a nitrogen atmosphere on Si (111) surfaces in ultrahigh vacuum (UHV). The 4f 7/2 electron binding energy of the initially deposited Pt corresponded to that of the intermetallic compound PtTi. Increasing the amount of deposited Pt shifted the binding energy toward that of metallic Pt. Complementary angleresolved XPS revealed that Pt remains on the outer surface region of the resulting multicomponent film. The results show that TiN layers with a thickness of only ca. 1 nm already form an effective barrier to Pt diffusion at room temperature.

本文言語English
ホスト出版物のタイトルPolymer Electrolyte Fuel Cells 11
ページ865-874
ページ数10
1
DOI
出版ステータスPublished - 2011 12 1
外部発表はい
イベント11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting - Boston, MA, United States
継続期間: 2011 10 92011 10 14

出版物シリーズ

名前ECS Transactions
番号1
41
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

Conference

Conference11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting
CountryUnited States
CityBoston, MA
Period11/10/911/10/14

ASJC Scopus subject areas

  • Engineering(all)

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