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Studies of diamond-like carbon (DLC) films deposited on stainless steel substrate with Si/SiC intermediate layers 被引量:3
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作者 王静 刘贵昌 +2 位作者 王立达 邓新绿 徐军 《Chinese Physics B》 SCIE EI CAS CSCD 2008年第8期3108-3114,共7页
In this work, diamond-like carbon (DLC) films were deposited on stainless steel substrates with Si/SiC intermediate layers by combining plasma enhanced sputtering physical vapour deposition (PEUMS-PVD) and microwa... In this work, diamond-like carbon (DLC) films were deposited on stainless steel substrates with Si/SiC intermediate layers by combining plasma enhanced sputtering physical vapour deposition (PEUMS-PVD) and microwave electron cyclotron resonance plasma enhanced chemical vapour deposition (MW-ECRPECVD) techniques. The influence of substrate negative self-bias voltage and Si target power on the structure and nano-mechanical behaviour of the DLC films were investigated by Raman spectroscopy, nano-indentation, and the film structural morphology by atomic force microscopy (AFM). With the increase of deposition bias voltage, the G band shifted to higher wave-number and the integrated intensity ratio ID/IG increased. We considered these as evidences for the development of graphitization in the films. As the substrate negative self-bias voltage increased, particle bombardment function was enhanced and the sp^3-bond carbon density reducing, resulted in the peak values of hardness (H) and elastic modulus (E). Silicon addition promoted the formation of sp^3 bonding and reduced the hardness. The incorporated Si atoms substituted sp^2- bond carbon atoms in ring structures, which promoted the formation of sp^3-bond. The structural transition from C-C to C-Si bonds resulted in relaxation of the residual stress which led to the decrease of internal stress and hardness. The results of AFM indicated that the films was dense and homogeneous, the roughness of the films was decreased due to the increase of substrate negative self-bias voltage and the Si target power. 展开更多
关键词 diamond-like carbon dlc stainless steel substrate intermediate layers
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Nanomechanical and Electrochemical Properties of Diamond-Like Carbon (DLC) Films Deposited by Plasma Enhanced Chemical Vapor Deposition (PECVD) Technique
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作者 王静 刘贵昌 +2 位作者 徐军 邓新绿 王立达 《Plasma Science and Technology》 SCIE EI CAS CSCD 2010年第4期461-465,共5页
Diamond-like carbon (DLC) films was deposited successfully on stainless steel sub- strates with Si/SiC intermediate layers by combining plasma enhanced unbalanced magnetron sputtering physical vapor deposition (PEU... Diamond-like carbon (DLC) films was deposited successfully on stainless steel sub- strates with Si/SiC intermediate layers by combining plasma enhanced unbalanced magnetron sputtering physical vapor deposition (PEUMS-PVD) and microwave electron cyclotron resonance plasma enhanced chemical vapor deposition (MW-ECR PECVD) techniques. The effect of sil- icon dopant on the structure, morphology, nanomechanical properties and electrochemical be- havior of DLC films were investigated by Raman spectroscopy, nano-indentation, atomic force microscopy (AFM) and potentiodynamic method and electrochemical impedance spectroscopy (EIS). It showed that the incorporated silicon atoms substituted sp2-bonded carbon atoms in the ring structures, promoting the formation of sp3-bonds. The structural transition from C-C to C-Si bonds resulted in the relaxation of the residual stress, leading to the decrease in films hardness. The DLC films with Si/SiC intermediate layers led to significant improvement in the corrosion resistance of the stainless steel substrate due to effective isolation and good chemical inertness of the DLC films. 展开更多
关键词 PECVD diamond-like carbon dlc Si/SiC intermediate layers stainless steel substrates
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STUDY ON DIAMOND LIKE CARBON THIN FILM BY FILTERED VACUUM ARC DEPOSITION
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作者 朱纪军 左敦稳 王珉 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 1999年第1期102-106,共5页
Diamond like carbon thin film is successfully deposited on silicon, titanium and stainless steel substrate at low temperature in a filtered vacuum arc deposition system. Arc discharges are established on a graphite ... Diamond like carbon thin film is successfully deposited on silicon, titanium and stainless steel substrate at low temperature in a filtered vacuum arc deposition system. Arc discharges are established on a graphite cathode in the system with a toroidal macroparticle filter. A cathode activating magnetic field and a filtered magnetic field to collimate the plasma beam are applied. Ion current convected by the plasma beam is measured with a negatively biased probe. It is shown that the magnetic field of the coils located on the plasma duct has a strong influence on cathode spot behavior. Orthogonally the designed experiments are carried out to optimize the deposition parameters of arc stability. Finally, the diamond like carbon thin films are studied by scanning electron microscope (SEM) and Raman spectrum. 展开更多
关键词 diamond like carbon thin film filtered vacuum arc deposition
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Study of relationship between structure and transmittance of diamond-like carbon (DLC) films
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作者 林松盛 侯惠君 +3 位作者 朱霞高 袁镇海 戴达煌 李洪武 《广东有色金属学报》 2005年第2期502-506,共5页
In this paper, the transparent hard diamond-like carbon (DLC) films were deposited on glass substrate by magnetic confined radio-frequency plasma chemical vapor deposition. The structure of films was studied by Raman ... In this paper, the transparent hard diamond-like carbon (DLC) films were deposited on glass substrate by magnetic confined radio-frequency plasma chemical vapor deposition. The structure of films was studied by Raman spectra and X-ray photoelectron spectra (XPS), the transmittance of films by Spectrophotometer. The mechanism of the influence of films structure on transmittance of the films was discussed. The results show that the thickness of films was lower than 100nm, and the transmittance was over 90% in 380-780 nm region. Discussion in theory on the influence of film structure on transmittance was correspondence to experiment results. 展开更多
关键词 薄膜 结构参数 人工合成
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Synthesis and Characteristics of Diamond-like Carbon Films Deposited on Quartz Substrate 被引量:2
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作者 黄卫东 丁鼎 詹如娟 《Plasma Science and Technology》 SCIE EI CAS CSCD 2004年第2期2255-2258,共4页
Diamond-like carbon (DLC) films are deposited on quartz substrate using pure CH4 in the surface wave plasma equipment. A direct current negative bias up to -90 V is applied to the substrate to investigate the bias eff... Diamond-like carbon (DLC) films are deposited on quartz substrate using pure CH4 in the surface wave plasma equipment. A direct current negative bias up to -90 V is applied to the substrate to investigate the bias effect on the film characteristics. Deposited films are characterized by Raman spectroscopy, infrared (IR) and ultraviolet-visible absorption techniques. There are two broad Raman peaks around 1340 cm-1 and 1600 cm-1 and the first one has a greater sp3 component with an increased bias. Infrared spectroscopy has three sp3 C-H modes at 2852 cm-1, 2926 cm-1 and 2962 cm-1, respectively and also shows an intensity increase with the negative bias. Optical band gap is calculated from the ultraviolet-visible absorption spectroscopy and the increased values with negative bias and deposition time are obtained. After a thermal anneal at about 500℃ for an hour to the film deposited under the bias of-90 V, we get an almost unchanged Raman spectrum and a peak intensity-reduced IR signal, which indicates a reduced H-content in the film. Meanwhile the optical band gap changed from 0.85 eV to 1.5 eV. 展开更多
关键词 diamond like carbon (dlc) Raman spectrum infrared absorption spectroscopy optical band gap
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Preparation of Diamond-like Carbon Films on the Surface of Ti Alloy by Electro-deposition 被引量:3
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作者 Fenglei SHEN Hongwei WANG Dijiang WEN School of Materials Engineering,Suzhou University,Suzhou 215021,China 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2004年第3期367-368,共2页
In this paper, diamond-like carbon (DLC) films were deposited on Ti alloy by electro-deposition. DLC films were brown andcomposed of the compact grains whose diameter was about 400 nm. Examined by XPS, the main compos... In this paper, diamond-like carbon (DLC) films were deposited on Ti alloy by electro-deposition. DLC films were brown andcomposed of the compact grains whose diameter was about 400 nm. Examined by XPS, the main composition of the filmswas carbon. In the Raman spectrum, there were a broad peak at 1350 cm^(-1) and a broad peak at 1600 cm^(-1), which indicatedthat the films were DLC films. 展开更多
关键词 diamond-like carbon film ELECTRO-DEPOSITION Ti alloy SURFACE
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Influence of Microwave Power on the Properties of Hydrogenated Diamond-Like Carbon Films Prepared by ECR Plasma Enhanced DC Magnetron Sputtering 被引量:2
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作者 汝丽丽 黄建军 +1 位作者 高亮 齐冰 《Plasma Science and Technology》 SCIE EI CAS CSCD 2010年第5期551-555,共5页
Electron cyclotron resonance (ECR) plasma was applied to enhance the direct current magnetron sputtering to prepare hydrogenated diamond-like carbon (H-DLC) films. For different microwave powers, both argon and hy... Electron cyclotron resonance (ECR) plasma was applied to enhance the direct current magnetron sputtering to prepare hydrogenated diamond-like carbon (H-DLC) films. For different microwave powers, both argon and hydrogen gas are introduced separately as the ECR working gas to investigate the influence of microwave power on the microstructure and electrical property of the H-DLC films deposited on P-type silicon substrates. A series of characterization methods including the Raman spectrum and atomic force microscopy are used. Results show that, within a certain range, the increase in microwave power affects the properties of the thin films, namely the sp3 ratio, the hardness, the nanoparticle size and the resistivity all increase while the roughness decreases with the increase in microwave power. The maximum of resistivity amounts to 1.1×10^9 Ω.cm. At the same time it is found that the influence of microwave power on the properties of H-DLC films is more pronounced when argon gas is applied as the ECR working gas, compared to hydrogen gas. 展开更多
关键词 hydrogenated diamond-like carbon films ECR plasma magnetron sputtering microwave power
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Structure and Mechanical Performance of Nitrogen Doped Diamond-like Carbon Films 被引量:1
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作者 Huayu ZHANG Liang-xue LIU +2 位作者 Yulei WANG Hongtao MA Fanxin LIU 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2007年第4期491-494,共4页
Nitrogen doped diamond-like carbon (DLC:N) films were prepared by electron cyclotron resonance chemical vapor deposition (ECR-CVD) on polycrystalline Si chips. Film thickness is about 50 nm. Auger electron spectr... Nitrogen doped diamond-like carbon (DLC:N) films were prepared by electron cyclotron resonance chemical vapor deposition (ECR-CVD) on polycrystalline Si chips. Film thickness is about 50 nm. Auger electron spectroscopy (AES) was used to evaluate nitrogen content, and increasing N2 flow improved N content from 0 to 7.6%. Raman and X-ray photoelectron spectroscopy (XPS) analysis results reveal CN-sp^3C and N-sp^2C structure. With increasing the N2 flow, sp^3C decreases from 73.74% down to 42.66%, and so does N-sp^3C from 68.04% down to 20.23%. The hardness decreases from 29.18 GPa down to 19.74 GPa, and the Young's modulus from 193.03 GPa down to 144.52 GPa. 展开更多
关键词 Nitrogen doped diamond-like carbon films ECR-CVD STRUCTURE Mechanical performance
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Fabrication of Diamond-like Carbon Films by Ion Assisted Middle Frequency Unbalanced Magnetron Sputtering 被引量:1
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作者 ZHANG Yi-chen SUN Shao-ni +2 位作者 ZHOU Yi MA Sheng-ge BA De-chun 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2006年第B12期119-125,共7页
Diamond-like carbon (DLC) films are deposited by the Hall ion source assisted by the mid-frequency unbalanced magnetron sputtering technique. The effects of the substrate voltage bias, the substrate temperature, the... Diamond-like carbon (DLC) films are deposited by the Hall ion source assisted by the mid-frequency unbalanced magnetron sputtering technique. The effects of the substrate voltage bias, the substrate temperature, the Hall discharging current and the argon/nitrogen ratio on the DLC film's performance were studied. The experimental results show that the film's surface roughness, the hardness and the Young's modulus increase firstly and then decrease with the bias voltage incrementally increases. Also when the substrate temperature rises, the surface roughness of the film varies slightly, but its hardness and Young's modulus firstly increase followed by a sharp decrease when the temperature surpassing 120 ℃. With the Hall discharging current incrementally rising, the hardness and Young's modulus of the film decrease and the surface roughness of the film on 316L stainless steel firstly decreased and then remains constant. 展开更多
关键词 fluid machinery and engineering diamond-like carbon films middle frequency unbalanced magnetron sputtering hall ion source
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Effects of Adsorption of Albumin and Gamma-Globulin on the Tribological Performance of a Diamond-Like Carbon Film
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作者 WU Bingjie LENG Yongxiang 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2019年第5期1103-1108,共6页
The effects of surface adsorption of bovine serum albumin(BSA) and human gamma-globulin(HGG) on the tribological performance of a DLC film were investigated using a quartz crystal microbalance with dissipation(QCM-D),... The effects of surface adsorption of bovine serum albumin(BSA) and human gamma-globulin(HGG) on the tribological performance of a DLC film were investigated using a quartz crystal microbalance with dissipation(QCM-D), a ball-on-disk reciprocating tribometer, and a three-electrode electrochemical cell. The results showed that the wear depth in the BSA solution was higher than that in the HGG solution. In the HGG solution, the HGG-adsorbed layer could act as a lubricating layer and protect the DLC film from wear. The wear volume of DLC film in BSA and HGG mixture solution was higher than that in single HGG solution. This may be because the BSA molecules inhibit the formation of HGG adsorbed layer during sliding. 展开更多
关键词 diamond like carbon(dlc) Quartz crystal MICROBALANCE with dissipation(QCM-D) Adsorbed layer Wear
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Effect of Fe ion implantation on tribological properties and Raman spectra characteristics of diamond-like carbon film
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作者 JIAWen-Bao SUNZhuo 《Nuclear Science and Techniques》 SCIE CAS CSCD 2004年第2期95-98,共4页
Fe ions in the fluence range of 2×1015 to 1×1017 cm-2 were implanted into diamond-like carbon (DLC) thin film of 100 nm thick, which were deposited on silicon substrate by plasma enhanced chemical vapor depo... Fe ions in the fluence range of 2×1015 to 1×1017 cm-2 were implanted into diamond-like carbon (DLC) thin film of 100 nm thick, which were deposited on silicon substrate by plasma enhanced chemical vapor deposition. Effects of Fe ion implantation on microstructure and friction coefficient of the DLC were studied. With increasing Fe ion fluence, friction coefficient of the DLC film increased as compared with that of DLC without implantation, and then decreased. The Raman spectra characteristics also show a dependence on the Fe ion fluence. With increasing the ion fluence, the sp2 bonding increased in the DLC film, resulting in the decrease of friction coefficient of the film af- ter implantation. Substantial surface roughness was also measured. 展开更多
关键词 铁离子 类金刚石碳薄膜 摩擦学性质 Raman光谱特性 物理气相沉积 等离子体增强化学气相沉积
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Characterization and Application of Diamond-like Carbon Films
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作者 侯清润 高炬 +1 位作者 杨晔 迟宁 《Rare Metals》 SCIE EI CAS CSCD 1998年第3期48-53,共6页
Diamond like carbon films were synthesized by the pulsed laser deposition method under a magnetic filed. The magnetic field was used to enhance the hardness of the films. Analysis with transmission electron microscop... Diamond like carbon films were synthesized by the pulsed laser deposition method under a magnetic filed. The magnetic field was used to enhance the hardness of the films. Analysis with transmission electron microscopy and atomic force microscopy were carried out to characterize the films. As a protective coating, the film was deposited on porous silicon. The influence of the coating on the photoluminescence properties of porous silicon was studied. 展开更多
关键词 diamond like carbon films TEM AFM porous silicon PHOTOLUMINESCENCE
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Irradiation Effect of γ Rays on Diamond-Like Carbon Films
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作者 刘贵昂 王天民 《Journal of Modern Transportation》 2001年第1期75-80,共6页
Diamond like carbon films, prepared by RF glow discharge on glass substrates, were irradiated by γ rays. The as deposited and irradiated films were characterized by Raman spectroscopy, electrical resistivity, a... Diamond like carbon films, prepared by RF glow discharge on glass substrates, were irradiated by γ rays. The as deposited and irradiated films were characterized by Raman spectroscopy, electrical resistivity, and infrared transmittance. It is shown that the irradiation of the γ rays can lead to the breaking of SP 3 C H and SP 2 C H bonds, slight increasing of SP 3 C C bonds, and induced hydrogen recombination with H 2 molecules, subsequently diffusing to the surface of the films. When the γ rays irradiation dose reached 10×10 4 Gy, the numbers of SP 3 C H bonds was decreased by about 50%, the resistivity of irradiated DLC films was increased, and the diamond like character of the films became more obvious. The structure of DLC films was modified when irradiated by γ rays. The irradiation mechanisms are briefly discussed. 展开更多
关键词 RAY IRRADIATION diamond like carbon films SP 3 C H SP 2 C H and SP 3 C C bonds structure and property
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Diamond Like Carbon Film Deposited on Porous Silicon as Passivation Coating
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作者 QU Jian-hua XIA Yi-ben +3 位作者 WANG Lin-jun MO Yao-wu TANG Ding-yuan (College of Material Science and Engineering, Shanghai University, Shanghai 201800, CHN National lab. of Infrared Physics, Chinese Academy of Sciences, Shanghai 200083, CHN) 《Semiconductor Photonics and Technology》 CAS 2000年第2期100-104,共5页
By depositing diamond like carbon (DLC) film with radio frequency plasma chemical vapor deposition (RFPCVD) method, a new surface passivation technique for photoluminescence porous silicon (PS) has been studied. The s... By depositing diamond like carbon (DLC) film with radio frequency plasma chemical vapor deposition (RFPCVD) method, a new surface passivation technique for photoluminescence porous silicon (PS) has been studied. The surface microstructure and photoelectric properties of both porous silicon and DLC coated PS have been analyzed by using AFM, FTIR and PL spectrotrieters. The results show the DLC film with dense and homogenous nanometer grains can be deposited on the PS used as passivation coating as it can terminate oxide reaction on the surface of the PS. Furthermore, certain ratio of hydrogen existed in the DLC film can be improved to form hydride species on the DLC/PS interface as the centers of the luminescence so that the DLC coating is of benefit not only to the passivation of the PS but also to the improvement of its luminescent intensity. 展开更多
关键词 diamond like carbon film Passivation coating Porous silicon PHOTOLUMINESCENCE
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Surface properties of diamond-like carbon films prepared by CVD and PVD methods
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作者 刘东平 刘艳红 陈宝祥 《Chinese Physics B》 SCIE EI CAS CSCD 2006年第3期575-579,共5页
Diamond-like carbon (DLC) films have been deposited using three different techniques: (a) electron cyclotron resonance——plasma source ion implantation, (b) low-pressure dielectric barrier discharge, (c) fil... Diamond-like carbon (DLC) films have been deposited using three different techniques: (a) electron cyclotron resonance——plasma source ion implantation, (b) low-pressure dielectric barrier discharge, (c) filtered——pulsed cathodic arc discharge, The surface and mechanical properties of these films are compared using atomic force microscopebased tests. The experimental results show that hydrogenated DLC films are covered with soft surface layers enriched with hydrogen and sp^3 hybridized carbon while the soft surface layers of tetrahedral amorphous carbon (ta-C) films have graphite-like structure, The formation of soft surface layers can be associated with the surface diffusion and growth induced by the low-energy deposition process. For typical CVD methods, the atomic hydrogen in the plasmas can contribute to the formation of hydrogen and sp^3 hybridized carbon enriched surface layers, The high-energy ion implantation causes the rearrangement of atoms beneath the surface layer and leads to an increase in film density. The ta-C films can be deposited using the medium energy carbon ions in the highly-ionized plasma. 展开更多
关键词 diamond-like carbon film film deposition atomic force microscope
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Effects of nitrogen content on structure and electrical properties of nitrogen-doped fluorinated diamond-like carbon films
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作者 肖剑荣 李新海 王志兴 《中国有色金属学会会刊:英文版》 EI CSCD 2009年第6期1551-1555,共5页
Nitrogen-doped fluorinated diamond-like carbon(FN-DLC)films were prepared on single crystal silicon substrate by radio frequency plasma enhanced chemical vapor deposition(RF-PECVD)under different deposited conditions ... Nitrogen-doped fluorinated diamond-like carbon(FN-DLC)films were prepared on single crystal silicon substrate by radio frequency plasma enhanced chemical vapor deposition(RF-PECVD)under different deposited conditions with CF4,CH4 and nitrogen as source gases.The influence of nitrogen content on the structure and electrical properties of the films was studied.The films were investigated in terms of surface morphology,microstructure,chemical composition and electrical properties.Atomic force microscopy(AFM)results revealed that the surface morphology of the films became smooth due to doping nitrogen.Fourier transform infrared absorption spectrometry(FTIR)results showed that amouts of C=N and C≡N bonds increased gradually with increasing nitrogen partial pressure r(r=p(N2)/p(N2+CF4+CH4)).Gaussian fit results of C 1s and N 1s in X-ray photoelectron spectra (XPS)showed that the incorporation of nitrogen presented mainly in the forms ofβ-C3N4 and a-CNx(x=1,2,3)in the films.The current-voltage(I-V)measurement results showed that the electrical conductivity of the films increased with increasing nitrogen content. 展开更多
关键词 氟化类金刚石薄膜 氮掺杂 射频等离子体增强化学气相沉积 电学特性 结构 氮素 原子力显微镜 红外吸收光谱
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Structural characteristics of surface-functionalized nitrogen-doped diamond-like carbon films and effective adjustment to cell attachment
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作者 刘爱萍 刘敏 +2 位作者 郁建灿 钱国栋 唐为华 《Chinese Physics B》 SCIE EI CAS CSCD 2015年第5期473-478,共6页
Nitrogen-doped diamond-like carbon (DLC:N) films prepared by the filtered cathodic vacuum arc technology are functionalized with various chemical molecules including dopamine (DA), 3-Aminobenzeneboronic acid (A... Nitrogen-doped diamond-like carbon (DLC:N) films prepared by the filtered cathodic vacuum arc technology are functionalized with various chemical molecules including dopamine (DA), 3-Aminobenzeneboronic acid (APBA), and adenosine triphosphate (ATP), and the impacts of surface functionalities on the surface morphologies, compositions, microstructures, and cell compatibility of the DLC:N films are systematically investigated. We demonstrate that the surface groups of DLC:N have a significant effect on the surface and structural properties of the film. The activity of PC12 cells depends on the particular type of surface functional groups of DLC:N films regardless of surface roughness and wettability. Our research offers a novel way for designing functionalized carbon films as tailorable substrates for biosensors and biomedical engineering applications. 展开更多
关键词 surface functionalization nitrogen-doped diamond-like carbon film MICROSTRUCTURE
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A Study of Diamond-Like Carbon Thin Films Prepared by Microwave Plasma Chemical Vapour Deposition
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作者 赖秀琼 陈俊芳 +4 位作者 符斯列 李炜 张茂平 史磊 杨春林 《Plasma Science and Technology》 SCIE EI CAS CSCD 2007年第4期444-447,共4页
In order to deposit good films, we need to study the uniformity of plasma density and the plasma density under different gas pressures and powers. The plasma density was diagnosed by a Langmuir probe. The optical emis... In order to deposit good films, we need to study the uniformity of plasma density and the plasma density under different gas pressures and powers. The plasma density was diagnosed by a Langmuir probe. The optical emission spectroscopy (OES) of CH4 and H2 discharge was obtained with raster spectroscopy, with characteristic peaks of H and CH achieved. Diamond-like carbon films were achieved based on the study of plasma density and OES and characterized by atomic force microscope (AFM), X-ray diffraction instrument (XRD), Raman spectroscope and profiler. 展开更多
关键词 plasma density Langmuir probe OES diamond-like carbon thin films
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STUDY OF RAY IRRADIATION ON DIAMOND-LIKE CARBON FILMS
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作者 G.A. Liu T.M. Wang E.Q 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2002年第1期26-32,共7页
Diamond-like carbon (DLC) films have been deposited on glass substrates usingradio-frequency (rf) plasma deposition method. Gamma -ray, ultraviolet (UV) ray were used toirradiate the DLC films. Raman spectroscopy and ... Diamond-like carbon (DLC) films have been deposited on glass substrates usingradio-frequency (rf) plasma deposition method. Gamma -ray, ultraviolet (UV) ray were used toirradiate the DLC films. Raman spectroscopy and infrared (IR) spectroscopy were use to characterizethe changing characteristics of SP^3 C-H bond and hydrogen content in the films due to theirradiations. The results show that, the damage degrees induced by the UV ray on the SP^3 C-H bondsare much stronger than that by the gamma -ray. When the irradiation dose of gamma -ray reaches 1 OX10^4 Gy, the SP^3 C-H bond reduces about 50 percent in number. The square electrical resistance ofthe films is reduced due to the irradiation of UV ray and this is caused by severe oxidation of thefilms. By using the results on optical gap of the films and the fully constrained network theory,the hydrogen content in the as-deposited films is estimated to be l0-25at. percent. 展开更多
关键词 diamond-like carbon film gamma -ray irradiation ultraviolet rayirradiation SP^3 C-H bond infrared transmittance
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Anomalous Electronic Transport in Diamond-Like-Carbon Films of Different Thickness
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作者 Soma Mukherjee Bijay Krishna Chaudhuri +1 位作者 Hironobu Sakata Moriaki Wakaki 《材料科学与工程(中英文B版)》 2011年第5期649-656,共8页
关键词 类金刚石碳薄膜 电子输运 厚度 金属绝缘体转变 X射线光电子能谱 扫描电子显微镜 薄膜半导体 反常
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