电子束蒸发与磁控溅射制备Al/PI复合薄膜的性能研究

利用磁控溅射法和电子束蒸发法在聚酰亚胺(PI)薄膜基底上沉积了铝功能膜.测试了两种方法薄膜的膜厚、附着力、反射率、折射率和电导率.结果表明,磁控溅射法制备的铝膜的综合性能较电子束蒸制备的铝膜的性能优越.     

电子束蒸发制备纳米硅锥及其场发射性能研究

应用超高真空电子束蒸发方法，以铁作为催化剂，在硅和多孔硅衬底上生长纳米Si锥阵列。采用原子力显微镜表征生长在不同衬底上纳米硅的形貌特征，测试和比较了不同衬底上纳米硅的电子场发射性能。实验结果表明用这种方法形成了高度为10—35nm的锥状纳米结构，并且这些纳米硅锥阵列的场发射性能良好。比较生长不同衬底上的纳米锥形貌与场发射性能，发现多孔硅衬底上更适合生长这种纳米硅锥。     

用电子束蒸发法低温无损情况下在有机柔性衬底上制作ITO膜及其性能研究

在有机材料柔性衬底上沉积ITO膜,需要在低温及无损伤(即避免离子轰击及热损伤等)情况下进行.为满足此要求,采用电子束蒸发法来实现在PI衬底上沉积ITO膜,对沉积参数如电子束特性、氧分压及衬底温度对薄膜质量的影响进行了研究;对薄膜结构、表面形貌、电学及光学特性进行了检测.最后,在PI衬底上获得高质量ITO膜,其可见光透过率超过90%,电阻率低于5×10-4 Ω*cm.     

磁控溅射镀铝一锌镀层工艺试验

本文报告了不同基片偏压对磁控溅射Ａｌ－ｚｎ镀层成份的影响，用扫描电镜分析了不同偏压下沉积试样表面形貌，在３．５ｗｔ％ＮａＣｌ溶液中进行了镀层试样电化学实验。     

脉冲磁控溅射氮化铬薄膜及其性能研究

采用新型脉冲磁控溅射技术制备了一系列氯化铬膜，对所制备的不同厚度薄膜进行了AFM和SEM形貌等分析．测定了薄膜的膜基结合强度和硬度，并对薄膜的摩擦学性能进行了研究。结果表明：通过使用铬过渡层可以提高膜基结合强度，镀层厚度对镀层摩擦学性能有影响，膜厚为1200nm的氯化铬膜试样显示出来高硬度、低摩擦系数和良好的抗磨性。     

真空镀膜技术中的电子束加热式蒸发源

本文介绍了真空镀膜技术中电子束加热式蒸发源的结构、电子束加热原理、特点、优点和工作原理以及电子束加热源中电子枪坩埚的处理和电子枪冷却系统的供水问题。     

用电子束蒸发法制备ZrO2薄膜

采用电子束蒸发的方法制备ＺｒＯ２薄膜，经Ｘ射线衍射和Ｘ光电子能谱分析证实：薄膜为具有立方结构的ＺｒＯ２薄膜，薄膜中缺氧，Ｙ原子的百分含量比蒸发原料中高．     

超高真空电子束蒸发合成晶态AlN薄膜的研究

用超高真空蒸发Ａｌ膜，结合氮化合处理工艺在Ｓｉ（１００）衬底上制备了ＡｌＮ晶态薄膜，用Ｘ射线衍射，傅立叶变换红外光谱和Ｘ射线光电子能谱等测试分析技术研究了薄膜的微结构特征。结果表明：经过１０００℃分钟氮化处理后，能形成具有（００２）择优取向的ＡｌＮ薄膜。     

电子束蒸发氧化钛薄膜的化学成分与显微结构

用电子束蒸发的方法在Ti盘上沉积氧化钛薄膜。分别用场发射扫描电镜,X射线光电子谱和X射线衍射分析所制备薄膜的表面形貌、化学成分和晶体结构,所制备的氧化钛薄膜的晶体结构依赖于制备过程中的沉积参数,薄膜的成分主要为金红石结构,是包含TiO2,Ti2O3和TiO三种结构的多晶体,随着沉积过程中氧气流量的增加,所制备的薄膜中高价钛离子(如Ti4+)的含量不断增大,同时低价钛离子(如Ti2+)的含量不断减小。随着氧气流量的增加和后续热处理温度的升高,薄膜的结晶度不断增大,并呈现出单一金红石(101)相位的趋势。     

Effect of high-energy electron beam irradiation on the properties of AZO thin films prepared by rf magnetron sputtering

We investigated that high-energy electron beam irradiation (HEEBI) performed in air at room temperature affected remarkably the properties of Al-doped ZnO (AZO) films grown on SiO₂ substrates by radio frequency magnetron sputtering techniques. Hall and photoluminescence measurements revealed that the n-type conductivity was preserved in HEEBI treated films with low dose up to 10¹⁵ electrons/cm² and converted to p-type conductivity with further increase in the amount of dose. X-ray photoelectron spectroscopy confirmed the conversion of conductivity by showing that in-diffusion of O₂ from the ambient as well as out-diffusion of Zn from the films took place as a result of HEEBI treatment at high dose of 10¹⁶ electrons/cm². X-ray diffraction analysis indicated that all as-grown films were found to have compressive stress, which was enhanced by HEEBI treatment with the increase of doses. It was also found that worse crystallinity with a smaller grain size was observed in HEEBI treated films with a higher dose, which was correlated with rougher surface morphologies of films observed by an atomic force microscope.     

Effects of heat treatment on properties of ITO films prepared by rf magnetron sputtering

Indium tin oxide (ITO) films were deposited on glass substrates by rf magnetron sputtering using a ceramic target (In₂O₃-SnO₂, 90-10 wt%) without extra heating. The post annealing was done in air and in vacuum, respectively. The effects of annealing on the structure, surface morphology, optical and electrical properties of the ITO films were studied. The results show that the increase of the annealing temperature improves the crystallinity of the films, increases the surface roughness, and improves the optical and electrical properties. The transmittance of the films in visible region is increased over 90% after the annealing process in air or in vacuum. The resistivity of the films deposited is about 8.125×10⁻⁴ Ω cm and falls down to 2.34×10⁻⁴ Ω cm as the annealing temperature is increased to 500°C in vacuum. Compared with the results of the ITO films annealed in air, the properties of the films annealed in vacuum is better.     

钢基耐磨SiC薄膜制备研究

用磁控溅射的方法在40Cr钢的表面制得了SiC薄膜.通过X射线衍射、傅里叶红外光谱分析、摩擦磨损以及划痕试验研究了工艺参数、溅射方式对薄膜性能的影响.结果表明:室温下,用磁控溅射法制备的SiC薄膜具有非晶态结构;傅立叶红外光谱证实了薄膜中除了Si-C键的存在外还有大量的Si-Si键;在相同的工艺参数下用射频溅射法制备的薄膜表面更为光滑致密,与基体结合更好;采用射频溅射法,在功率200W,时间为2h,工作气压为0.1Pa条件下制备的SiC薄膜性能最佳.     

反应磁控溅射法沉积的氟化类金刚石薄膜的结构分析

以高纯石墨作靶、Ar／CHF3作源气体采用射频反应磁控溅射法室温下制备了氟化类金刚石薄膜(F-DLC)。发现随着射频功率的增加,F-DLC薄膜拉曼光谱的D峰与G峰强度之比ID／IG加大,薄膜中芳香环式结构比例上升。红外吸收光谱则显示射频功率增加导致薄膜中的氟含量上升．氟原子与碳原子以及芳香环的耦合加强。控制射频功率可以有效调制薄膜中的氟含量以及芳香环结构的比例,F—DLC可能成为热稳定性较好的碳氟薄膜。     

Effect of aluminum and indium co-doping on zinc oxide films prepared by dc magnetron sputtering

Aluminum and indium co-doped zinc oxide (AIZO) thin films were prepared by direct current (dc) magnetron sputtering on glass substrate in pure argon atmosphere. Three inches of zinc oxide ceramic with 0.5 wt.% of aluminum and indium doping was used as a target in static mode. The influence of sputtering conditions i.e. substrate-target distance, pressure and power on AIZO films was studied. The electrical resistivity and microstructure of thin films were investigated by the four point probe technique and the scanning electron microscope, respectively. The optical transmittance of AIZO films was measured by UV visible spectrophotometer in the wavelength of 300-1100 nm. Depending on the deposited conditions, highly transparent films up to 80% with low resistivities in the range of 2.6-7.9 × 10^− 4 Ω cm were achieved at room temperature. Possible mechanism in the processing which, ultimately, determines the physical properties of AIZO films will be discussed.     

磁控溅射ITO薄膜的退火处理

采用直流磁控溅射方法在室温下玻璃基板上制备ITO(Indium tin oxide)薄膜,并在真空中不同温度(100℃~400℃)下退火处理.研究了退火对薄膜表面形貌、电光特性的影响.XRD测试发现薄膜在200℃退火后结晶,优选晶向为(222).随退火温度升高,方块电阻迅速下降,表面更加平整,薄膜在可见光范围平均透过率提高到85%.     

Al-Mg-B thin films prepared by magnetron sputtering

Hard, nanocomposite aluminum magnesium boride thin films were prepared on Si (100) substrates with a three target magnetron sputtering system. The films were characterized by X-ray diffraction, atomic force microscope, electron micro-probe, Fourier transform infrared spectroscopy and nanoindentation. The results show that the maximum hardness of the as-deposited films is about 30.7 GPa and these films are all X-ray amorphous with smooth surfaces. The influences of substrate temperature and boron sputtering power on the quality of the films are discussed. From the results of this work, magnetron sputtering is a promising method to deposit Al-Mg-B thin films.     

In-situ deposition of superconducting YBCO thin films by magnetron sputtering from powder target

We have used stoichiometric Y₁Ba₂Cu₃O_7–x powder as magnetron sputtering target to deposit high-quality high-T _c superconducting thin films on MgO, SrTiO₃, and ZrO₂ substrates. The zero-resistance temperatures are 86–88 K, and the 77 K zero-field critical current density is 8 × 10⁵ A/cm². The films are highlyc-axis oriented. Films deposited on 10 × 10 × 1 mm³ ZrO₂ substrates have surface resistances below 25 m at 77 K and 94 GHz. Using powder targets instead of bulk targets has the following advantages: simple and low-cost target preparation, simple target replacement, and versatility for large-area deposition.     

Hydrogen-free diamond-like carbon films prepared by microwave electron cyclotron resonance plasma-enhanced direct current magnetron sputtering

Hydrogen-free diamond-like carbon (DLC) films were prepared by means of microwave electron cyclotron resonance plasma enhanced direct current magnetron sputtering. To study the influence of enhanced plasma on film fabrication and properties, the structures as well as mechanical and electrical properties of these films were studied as a function of applied microwave power. Results showed that higher microwave power could induce higher plasma density and electron temperature. The hardness increased from 3.5 GPa to 13 GPa with a variation of microwave power from 0 W to 1000 W. The resistivity showed a drastic increase from 4.5 × 10⁴ Ωcm at 0 W to 1.3 × 10¹⁰ Ωcm at 1000 W. The variation of the intensity ratio I(D)/I(G) and the position of the G-peak of the DLC films with respect to changes in microwave power were also investigated by Raman spectroscopy.     

反应射频磁控溅射法制备HfTaO薄膜的热稳定性和光学性能

采用反应射频磁控溅射技术制备HfTaO薄膜,利用X射线衍射(XRD)分析了薄膜的微结构,通过紫外-可见光分光光度计测量了薄膜的透过谱,计算了薄膜的折射率和禁带宽度,利用原子力显微镜观察了薄膜的表面形貌。结果表明,随着Ta掺入量(10%,26%,50%)的增加,HfTaO薄膜的结晶化温度分别为800、900、950℃,Ta掺入量继续增加到72%,经过950℃退火处理的HfTaO薄膜仍然保持非晶态,具有优良的热稳定性。AFM形貌分析显示非晶HfTaO薄膜表面非常平整。在550nm处薄膜折射率n随着Ta掺入量的增大而增大,n的变化区间为1.90～2.15。同时HfTaO薄膜的光学带隙Eg随着Ta掺入量的增大而逐渐减小,Eg的变化区间为4.15～5.29eV。