纳米晶薄膜Li_xPb_(0.9-x)La_(0.1)TiO_3合成及离子电导特性

纳米晶薄膜LixPb0.9-xLa0.1TiO3（x=0，0．1，0．2，0．6）以普通玻璃为衬底通过溶胶—凝胶方法烧结制备而成。对LPLT薄膜进行DTA，XRD等测试手段分析。通过交流阻抗数据的分析，在室温下电导率高达2．3×10－3S·cm-1     

Application of Magnetron Sputtering in Fabricating MEMS Microbatteries

With the development of MEMS and the electronic devices's miniaturization and integration, a new kind of power sources that can satisfy the need for high energy density is required. Microbatteries are being researched abroad for their advantages of extreme thinness and long-term power supply. The development of MEMS microbatteries are reviewed and suggestedmagnetron sputtering in fabricating a high-performance microbattery. The technics as annealing are analyzed. The microbattery with a LiNi1-x Cox O2 cathode exhibited stable cycle ability and a high specific discharge capacity, which was attributed to the alloying effect of the LiNiO2and LiCoO2.     

Formation of structure of the CdTe film, recrystallized on Mo/glass substrate under high temperature and mechanical pressure

Large-grained and 7 μm thick CdTe film has been fabricated on top of Mo coated soda-lime glass substrate. As a new approach the dynamic recrystallization process (DRC) was used to form the structure of films. For the characterization of the structure and composition of the films a scanning electron microscopy (SEM), energy dispersive X-ray microanalysis (EDS) and X-ray diffraction (XRD) methods were used. The changes in the structure of films were studied in accordance with the process temperature, pressure and as-deposited film thickness. Significant changes in the CdTe film were observed after DRC of deposited films at the process temperatures between 450 °C and 550 °C. EDS quantitative analysis showed that during the recrystallization the Mo and CdTe films composition remained stable for all studied samples. The XRD results showed that the increase in the process temperature caused improvement in orientation of the films along direction of (111). The DRC temperature above 550 °C reduced the orientation again. The limits of the temperature and pressure in application of soda-lime glass in DRC were found and discussed.     

轿车发动机电控喷射系统用新型传感器的开发

天津大学在国家“８６３”新材料领域的资助下,研制开发新型氧敏薄膜材料,研制出近百个Ａ／Ｆ传感器样件。该样件材料新颖,结构简单,响应速度快,成本低,具有独立知识产权。装在夏利车上,与国外生产进行了排放控制试验比较。试验结果表明,控制能力达到国外生产件水平;响应速度比后者快。     

The Potential Role of SP-G as Surface Tension Regulator in Tear Film: From Molecular Simulations to Experimental Observations

The ocular surface is in constant interaction with the environment and with numerous pathogens. Therefore, complex mechanisms such as a stable tear film and local immune defense mechanisms are required to protect the eye. This study describes the detection, characterization, and putative role of surfactant protein G (SP-G/SFTA2) with respect to wound healing and surface activity. Bioinformatic, biochemical, and immunological methods were combined to elucidate the role of SP-G in tear film. The results show the presence of SP-G in ocular surface tissues and tear film (TF). Increased expression of SP-G was demonstrated in TF of patients with dry eye disease (DED). Addition of recombinant SP-G in combination with lipids led to an accelerated wound healing of human corneal cells as well as to a reduction of TF surface tension. Molecular modeling of TF suggest that SP-G may regulate tear film surface tension and improve its stability through specific interactions with lipids components of the tear film. In conclusion, SP-G is an ocular surface protein with putative wound healing properties that can also reduce the surface tension of the tear film.     

介质薄膜的透射光谱测量及其光学参数的分析

介绍介质薄膜透射光谱的测量以及基于分析薄膜透射光谱的计算薄膜光学参数的方法。对制备在玻璃基板上的二氧化钛、二氧化硅和氧化锌薄膜进行了可见光谱区的透射比测量，并用包络线方法和最优化方法对这些透明薄膜的光学参数进行了计算和分析。着重讨论了最优化方法在分析薄膜光学参数中的应用及其误差分析。此外，还对包络线方法和最优化方法进行了比较。     

Effect of Seed Layer on the Orientation of Zinc Oxide Film on Silicon Substrate

1. IntroductionZinc oxide films have been attracting more and moreattention because of their high diffractive index, low resis-tance, and photoluminescence properties, and are beingused as transparent electrodes, basis material for opti-cal wave guide devices, gas sensors and so on. Manymethods have been developed to prepare ZnO films, suchas chemical vapor deposition[1], reactive evaporation[2],pulsed laser ablation[3], sputtering[4], spray pyrolysis[5]and hydrothermal method[6]. There are a…     

魔芋葡甘聚糖抗菌复合膜的研制及其应用

以魔芋葡甘聚糖(Konjac Glucomannan,KGM)为基质,加入增塑剂、脂质、乳化剂、抗菌剂及生物抑制剂,在温度为50℃条件下干燥10 h,所制得的膜具有良好的阻湿阻气性能、可降解和抗菌性,有一定的强度.将该膜材料应用于龙眼保鲜上,效果优于普通聚乙烯薄膜袋.     

一种双靶磁控溅射制备的Mg掺杂的NiO薄膜

采用磁控溅射“共溅射”方法,将Ar气作为溅射气体,高纯NiO和MgO双陶瓷靶作为溅射靶材。当控制NiO和MgO靶的溅射功率分别为190 W和580 W,溅射真空度为2 Pa,衬底温度为300℃时,得到了Mg掺杂的NiO(Ni_0.61Mg_0.39O)薄膜。该薄膜是一种具有(200)择优取向的晶态薄膜。薄膜表面比较平整,晶粒分布致密,晶粒尺寸约46.9 nm。(200)衍射峰位置相对未掺杂的NiO薄膜向小角度偏移约0.2°。合金薄膜在可见光波段具有较大的透过率,而在300 nm附近透过率陡然下降,其光学带隙向高能方向移动到了3.95 eV。该研究为采用磁控溅射制备高质量的Mg掺杂的NiO薄膜提供了技术支撑。