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Volumn 45, Issue 20, 1992, Pages 11975-11981

Correlation of the electrical properties of metal contacts on diamond films with the chemical nature of the metal-diamond interface. II. Titanium contacts: A carbide-forming metal

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EID: 0043020804     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevB.45.11975     Document Type: Article
Times cited : (148)

References (28)
  • 28
    • 84911679417 scopus 로고
    • The work function of the polycrystalline diamond used in the present study is unknown. However, is assumed that the Fermi level lies app 0.4 eV above the valence-band maximum (the activation energy of boron is 0.37 eV) and that the polycrystalline diamond has a positive electron affinity (i.e., the vacuum level is above the conduction-band minmum). The latter assumption is reasonable because diamond shows a negative electron affinity only for a clean (111) surface. Then, the work function of the diamond, which is equal to the sum of the electron affinity plus the difference between the conduction-band minimum and the Fermi level, is estimated to be 5.1 eV or larger, using a band gap of 5.5 eV. The work functions of gold and titanium are 5.1 and 4.3 eV, respectively. For titanium carbide, is estimated to be app 2.6 eV from an experimentally measured value for monocrystalline titanium carbide
    • (1977) Bull. Electrotech. Lab. Jpn. , vol.41 , pp. 593
    • Senzaki, K.1    Kumashiro, Y.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.