An optical absorption and electron spin resonance study in hydrogenated amorphous carbon prepared by radio frequency sputtering

被引：18
|
作者：
Zeinert, A
von Bardeleben, HJ
Bouzerar, R
机构：
[1] Univ Picardie, Phys Mat Condensee Lab, Fac Sci, F-80039 Amiens, France
[2] Univ Paris 06, Phys Solides Grp, F-75252 Paris 05, France
[3] Univ Paris 07, F-75252 Paris 05, France
来源：
DIAMOND AND RELATED MATERIALS | 2000年 / 9卷 / 3-6期
关键词：
amorphous hydrogenated carbon; defects; density of states; optoelectronic properties;
D O I：
10.1016/S0925-9635(99)00270-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, we investigated different hydrogenated amorphous carbon (a-C:H) films grown by radio frequency (RF) magnetron sputtering covering a large variety of films from polymer-like carbon (PLC) to diamond-like carbon (DLC). Photothermal deflection spectroscopy (PDS), transmission spectroscopy in the visible and near infrared (IR) region were combined ir with electron spin resonance (ESR) measurements. The optical absorption spectra were analysed assuming a distribution of two overlapping Gaussian bands near the Fermi lever in order to deduce the density of states (DOS) at the Fermi level. From the DOS and the density of paramagnetic states a correlation energy for midgap states is derived. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：728 / 731
页数：4
相关论文
共 50 条
  • [1] ELECTRON-SPIN-RESONANCE OF HYDROGENATED AMORPHOUS-SILICON CARBON ALLOY-FILMS PREPARED BY MAGNETRON SPUTTERING
    NAKAMURA, T
    SAITO, N
    SUZUKI, Y
    NAKANISHI, Y
    SHIMAOKA, G
    PHILOSOPHICAL MAGAZINE LETTERS, 1987, 56 (04) : 161 - 163
  • [2] ELECTRON-SPIN RESONANCE STUDY OF AMORPHOUS HYDROGENATED CARBON-FILMS
    MILLER, DJ
    MCKENZIE, DR
    THIN SOLID FILMS, 1983, 108 (03) : 257 - 264
  • [3] Hydrogenated amorphous and microcrystalline GaAs films prepared by radio-frequency magnetron sputtering
    Abraham-Shrauner, Barbara
    Ouyang, L.H.
    Rode, D.L.
    Zulkifli, T.
    Lewis, N.
    Freeman, M.R.
    1600, American Institute of Physics Inc. (91):
  • [4] Hydrogenated amorphous and microcrystalline GaAs films prepared by radio-frequency magnetron sputtering
    Ouyang, LH
    Rode, DL
    Zulkifli, T
    Abraham-Shrauner, B
    Lewis, N
    Freeman, MR
    JOURNAL OF APPLIED PHYSICS, 2002, 91 (05) : 3459 - 3467
  • [5] THE ORIGIN OF OPTICAL-ABSORPTION AND THE ELECTRON-SPIN-RESONANCE SIGNAL IN AMORPHOUS-CARBON AND AMORPHOUS HYDROGENATED CARBON - A PROPOSED DENSITY-OF-STATES MODEL
    DEMICHELIS, F
    PIRRI, CF
    TAGLIAFERRO, A
    DASGUPTA, D
    SURFACE & COATINGS TECHNOLOGY, 1991, 47 (1-3): : 740 - 745
  • [6] PROPERTIES OF AMORPHOUS HYDROGENATED SILICON-TIN ALLOYS PREPARED BY RADIO-FREQUENCY SPUTTERING
    WILLIAMSON, DL
    KERNS, RC
    DEB, SK
    JOURNAL OF APPLIED PHYSICS, 1984, 55 (08) : 2816 - 2824
  • [7] Spins and microstructure of hydrogenated amorphous carbon: A multiple frequency electron paramagnetic resonance study
    von Bardeleben, HJ
    Cantin, JL
    Zeinert, A
    Racine, B
    Zellama, K
    Hai, PN
    APPLIED PHYSICS LETTERS, 2001, 78 (19) : 2843 - 2845
  • [8] ELECTRICAL AND ELECTRON-SPIN-RESONANCE MEASUREMENTS OF AMORPHOUS HYDROGENATED CARBON NITRIDE
    LIN, S
    NOONAN, K
    FELDMAN, BJ
    DONG, M
    JONES, MT
    SOLID STATE COMMUNICATIONS, 1991, 80 (02) : 101 - 102
  • [9] PI-BANDS AND GAP STATES FROM OPTICAL-ABSORPTION AND ELECTRON-SPIN-RESONANCE STUDIES ON AMORPHOUS-CARBON AND AMORPHOUS HYDROGENATED CARBON-FILMS
    DASGUPTA, D
    DEMICHELIS, F
    PIRRI, CF
    TAGLIAFERRO, A
    PHYSICAL REVIEW B, 1991, 43 (03): : 2131 - 2135
  • [10] CHARACTERISTICS OF ELECTRON-SPIN RESONANCE IN HYDROGENATED AMORPHOUS SILICON-CARBON HYDROGENATED AMORPHOUS-SILICON HETEROJUNCTIONS
    CHEN, GG
    SUN, GS
    ZHANG, FQ
    APPLIED PHYSICS LETTERS, 1989, 54 (09) : 807 - 809
12345