Bi_4Ti_3O_(12)薄膜的结构与形貌分析

采用金属与金属氧化物复合靶的射频溅射法,在S_1,Au,Pt和Ti基片上沉积制备Bi_4Ti_3O_(12)(BTO)铁电薄膜,对不同基片沉积的BTO薄膜,以及不同退火温度下的薄膜的相结构、成分及形貌进行了分析。结果表明,BTO薄膜的结构与退火温度和沉积基片有关,不同基片上钙钛矿结构形成的温度按T_t相似文献   

金刚石膜合成条件下的鞘层与等离子体参数分布

本文报导了在用热阴极直流放电等离子体化学气相沉积（通常也称ＥＡＣＶＤ．即电子辅助化学气相沉积）方法合成金刚石的条件下的等离子体密度、电子温度、等离子体空间电位分布及基片附近等离子体鞘结构，并讨论其对成膜的影响．     

Photo-electrochemical properties of multi-layered thin films composed of chalcogenide and superionic conductor glasses

Multi-layered thin films, which consisted of metallic silver, GeSe₃ glass, and silver oxyhalide superionic conductor glass were prepared. Photo- and electrochemical reaction of metallic silver with the chalcogenide glass layer was studied by optical absorbance and cyclic-voltammetry. Photo-doping of silver through the superionic glass layer was observed using evaporated AgI---Ag₂MoO₄ film and it was partly undoped by electrochemical treatment. However, no photo-doping was observed for the cell consisting of a AgI---AgPO₃ dip-coated layer. The doped silver was dissolved into the GeSe₃ layer during the photo-doping process. However, it formed another intermediate compound layer (probably silver selenide) during the electrodoping process.     

一种新型叠层光敏全息记录软片

通过化学反应，在三醋酸纤维素睛基的正反两面同时生成具有感光活性的光敏层的方法，获得了一种具有叠层光敏性的全息记录软片：重铬酸盐－三醋酸纤维素酯。由该软片记录的叠层体积全息光栅，具有迄今为止，最高的一级实验衍射效率（５４％）。     

Wetting films of lipids in the development of sensitive interfaces. An electrochemical approach

Solid-supported thin liquid films of lipids, contacting an electrolyte phase, turned out to be a dependable system in the field of bosensors. The investigations of these objects during the past decade reveal some of their intriguing features enabling the application in constructions of receptor part with 'two-dimensional' arrangement. As a model system, complementary to the other artificial analogs of biomembranes, the wetting films of lipids offer certain advantages concerning the compromise between the stability and flexibility of the molecular structures involved in sensing. The basic principles underlaying the techniques of formation, as well as the conditions of the films stability are emphasized in the present consized review. While no limitations are imposed by the way of preparation, the films seem especially profitable in conjunction with methods for electrochemical signal transduction. In this regard some prominent examples are discussed.     

Design of a new thin-film electro-optic switch

A new thin-film electro-optic switch employing two stable states of polarization is proposed and investigated. The design can be further employed to realize a TE-TM polarization converter by constructing a Mach-Zehnder type interferometer integrated optical switch. The limitations and design procedures for electro-optic devices are also discussed.     

用于投影显示的分色合色膜系的消偏振设计

由于斜入射时,光学薄膜存在一定的偏振效应,将产生S-和P-偏振光的光谱分离.在Philips棱镜系统中,分色合色膜系通常分色时对S-光应用,合色时则对P-光应用.从提高光能利用率、减少杂散光和增加系统对比度等因素综合考虑,要求分色合色膜系的S-和P-偏振光的分离尽可能小.新设计方法采用宽带法布里－珀罗薄膜干涉滤光片中心波长两侧的干涉带作为长波通或短波通截止滤光片,可实现S-和P-偏振分量的分离几乎为零.     

Photoinduced Change in the Optical Constants of Thin Films

We propose and have realized experimentally a method for determining weak reversible photoinduced changes in the optical constants of high-refraction films based on the application of the envelope method to the photomodulation transmission spectrum of the film. __________ Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 72, No. 3, pp. 366–370, May–June, 2005.     

不同层显式格式及在微尺度热传导中的应用

基于指数拟合和牛顿插值多项式构造了用于数值计算偏微分方程的不同层显式格式,应用不同层显式格式可获得不同精度的数值计算结果,并将该算法应用于微结构热传导方程和薄膜强瞬态热传导方程中．     

Capacitive sensors using electropolymerized o-phenylenediamine film doped with ion-pair complex as selective elements for the determination of pentoxyverine

A capacitive sensing method based on electropolymerized o-phenylenediamine film doped with pentoxyverine ion-pair complex as selective element was successfully developed for the determination of pentoxyverine. Ion-pair complex, pentoxyverine-tetraphenylborate or pentoxyverine-picrolonate, was embedded in electropolymerized o-phenylenediamine film by electropolymerizing technique. The effects of working frequency and test solution pH on the detection of pentoxyverine were investigated in detail and optimized. For the sensor modified with pentoxyverine-tetraphenylborate, calibration curve was linear over the concentration range of 5.0×10⁻⁷ to 1.0×10⁻⁴ M with a detection limit of 1.0×10⁻⁷ M at pH 7. The proposed sensor exhibited high selectivity and sensitivity to pentoxyverine. The results in sample analysis confirmed the usefulness of the proposed ISC sensor for quantitative analysis, and also indicated that this method might find applications in the assay of other drugs.