Open AccessTHE STUDY OF THE D.C. CONDUCTIVITY PROPERTIES OF DLC FILMS
Author(s) -
Guanghua Chen,
Lu Yang-Hua,
Guangjin Ma
Publication year - 1996
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.45.661
Subject(s) - materials science , conductivity , exponential function , electrical conductor , condensed matter physics , thermodynamics , composite material , physics , mathematics , mathematical analysis , quantum mechanics
In this paper, we have studied the temperature dependence of the d. c. conductivity of DLC films. The results show that there are obviously different conductive mechanism in the three tempera ture regions (i.e., low, room and high). In the low temperature region , it agrees with the logσ-T-1/4 rule, while in the room and the high temperature regions, it agrees with the logσ-T-1 rule, but the thermoactive energies and the pre-exponential coefficients are different. The experi-ment results are discussed using the two-phase model.