USE OF SPACE-CHARGE-LIMITED CURRENT TO EVALUATE THE ELECTRONIC DENSITY-OF-STATES IN DIAMOND-LIKE CARBON THIN-FILMS

被引：35
|
作者：
SILVA, SRP
AMARATUNGA, GAJ
机构：
[1] Engineering Department, University of Cambridge, Cambridge, Cambs. CB2 1PZ, Trumpington Street
来源：
THIN SOLID FILMS | 1994年 / 253卷 / 1-2期
关键词：
AMORPHOUS MATERIALS; CARBON; CHEMICAL VAPOR DEPOSITION; ELECTRICAL PROPERTIES AND MEASUREMENTS;
D O I：
10.1016/0040-6090(94)90310-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Diamond-like carbon thin films are characterized using the space-charge limited current (SCLC) under electron and hole injection. An electronic density of states diagram derived using SCLC shows similarities to the Davies-Mott model, with localized states within the midgap region and band tailing at the edges of the gap. The density of midgap states for diamond-like carbon is of the order of 10(18) cm(-3) eV(-1) and increases to 10(21) cm(-3) eV(-1) at the localized states associated with the pi-pi* bands. Activation energy and SCLC analysis show a defect state density of the order of 10(19) cm(-3) eV(-1) close to the centre of the band gap.
引用
收藏
页码：146 / 150
页数：5
相关论文
共 50 条
  • [1] SPACE-CHARGE-LIMITED CURRENT FLOW IN GALLIUM NITRIDE THIN-FILMS
    VESELY, JC
    SHATZKES, M
    BURKHARDT, PJ
    [J]. PHYSICAL REVIEW B, 1974, 10 (02) : 582 - 590
  • [2] SPACE-CHARGE-LIMITED CURRENT FLOW AND TRAP DENSITY IN UNDOPED DIAMOND FILMS
    WERNER, M
    DORSCH, O
    HINZE, A
    OBERMEIER, E
    HARPER, RE
    JOHNSTON, C
    CHALKER, PR
    BUCKLEYGOLDER, IM
    [J]. DIAMOND AND RELATED MATERIALS, 1993, 2 (5-7) : 825 - 828
  • [3] Thickness dependence of density of gap states in diamond films studied using space-charge-limited current
    Gan, B
    Ahn, J
    Rusli
    Zhang, Q
    Yoon, SF
    Ligatchev, VA
    Yu, J
    Chew, K
    Huang, QF
    [J]. JOURNAL OF APPLIED PHYSICS, 2001, 89 (10) : 5747 - 5753
  • [4] APPLICATIONS OF DIAMOND-LIKE CARBON THIN-FILMS
    LETTINGTON, AH
    [J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1993, 342 (1664): : 287 - 290
  • [5] CARBON THIN-FILMS WITH DIAMOND-LIKE PROPERTIES
    MORAVEC, TJ
    SCHMIDT, P
    SPENCER, EG
    [J]. AMERICAN CERAMIC SOCIETY BULLETIN, 1980, 59 (03): : 329 - 329
  • [6] SPACE-CHARGE-LIMITED CURRENT IN THIN-FILM DIAMOND
    ASHOK, S
    SRIKANTH, K
    BADZIAN, A
    BADZIAN, T
    MESSIER, R
    [J]. APPLIED PHYSICS LETTERS, 1987, 50 (12) : 763 - 765
  • [7] SPACE-CHARGE-LIMITED CONDUCTION IN NEODYMIUM OXIDE THIN-FILMS
    DHARMADHIKARI, VS
    [J]. THIN SOLID FILMS, 1983, 103 (03) : 311 - 317
  • [8] ELECTRIC CONDUCTIVITY OF NITROGEN-DOPED DIAMOND-LIKE CARBON FILMS: II. SPACE-CHARGE-LIMITED CURRENTS
    Evtukh, A. A.
    [J]. UKRAINIAN JOURNAL OF PHYSICS, 2009, 54 (03): : 308 - 314
  • [9] SPACE-CHARGE-LIMITED CURRENTS IN AMORPHOUS GALLIUM SULFIDE THIN-FILMS
    MICOCCI, G
    TEPORE, A
    RELLA, R
    SICILIANO, P
    [J]. JOURNAL OF APPLIED PHYSICS, 1991, 69 (01) : 320 - 323
  • [10] OHMIC AND SPACE-CHARGE-LIMITED CONDUCTION IN LEAD PHTHALOCYANINE THIN-FILMS
    AHMAD, A
    COLLINS, RA
    [J]. PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1991, 123 (01): : 201 - 211
12345