The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Polyimides (PI) are widely used in microelectronic industries because of their outstanding characteristics such as good mechanical, thermal and dielectric properties. In this paper, a novel PI/SiO2-Al2O3 co-doped composite film was prepared. The inorganic phases of SiO2 were added to PAA solution by sol-gel method with TEOS as precursor, while the Al2O3 phase was added as particles by ultrasonic-mechanical...
In this paper we investigate the application of transparent conductive oxides (TCO) in plasmonic devices, and especially for the functionalization of surface plasmon resonance and metamaterial sensors. We analyzed fabrication of laminar nanocomposites obtained by the deposition of indium oxide, tin oxide and indium tin oxide nanoparticles from solution to ultrathin freestanding structures. We investigated...
We present a novel structure of the ZnO thin-film with high haze value. The thin-film was composed by appropriate amount of ZnO nanoparticle, ZnO hollow nanoparticle and ZnO sol-gel annealed at 500??C for 1 h. Therefore, the ZnO and ZnO hollow nanoparticle can be well-bounded in the ZnO thin-film. In this experiment, the haze of novel ZnO thin films are over 80% in visible range. It will be used for...
In this paper, polyimide/SiO2 (PI/SiO2) hybrid films were prepared via the Sol-Gel process and thermal imidization by the hydrolysis and condensation of triethoxysilane (TEOS), methyl-triethoxysilane (MTEOS) and dimethyldiethoxylsilane (DDS) served as inorganic precursor respectively. The coupling agent used in these hybrid films is 3-amionpropyltriethoxysilane (APrTEOS). The microstructure of hybrid...
In this work, we present a systematic investigation of the influence of mixed-phase TiO2 with various a-TiO2 to r-TiO2 ratio (A/R) toward the DSSCs efficiency. It was found that though a-TiO2 showed better performance than r-TiO2 in DSSCs, the Ru-bipyridine dye (N719) sensitized TiO2 films fabricated by mixed-phase TiO2 with A/R = 9 gives the highest cell efficiency.
The process of producing finely dispersed Ba1-xSrxTiO3, BaTiO3 and (Bi1-xLax)4Ti3O12 powders with ultra-and nanosized particles by chemical reactions in multi-component salt melts is developed. Also the opportunities of sol-gel method for the film structures formation are used by means of ferroelectric powders inclusion in an oxide silicate matrix. The optimal syntheses condition of film glass-ceramical...
In this paper fabrication of a 0-3 ceramic/ceramic composite lead zirconate titanate, Pb(Zr0.52Ti0.48)O3 thin film has been presented and then a pressure sensor based on multilayer thin-film PZT diaphragm contain of lead zirconate titanate nanocrystalline powders was designed, modeled and optimized. This multilayer diaphragm in general acts as sensor or actuator. ANSYS was used for simulation of diaphragm...
In this work, we report the fabrication process of nanostrutured powder using a Sol-Gel method and HfO2 nanofilms obtained via Pulsed-Laser-Ablation and Electron-Beam Evaporation. The results of the investigation of structural properties and defects of HfO2 nanoparticles and thin films are discussed in terms of the electric quadrupole interactions of the nuclear probe 181Ta within the sample volume...
ZnSe nanoparticles embedded in SiO2 thin films were prepared by sol-gel method using zinc acetate dihydrate, selenic acid and TEOS as source materials. The ZnSe nanoparticles/SiO2 thin film composites were deposited on the glass substrate by dip coating technique. FESEM images show that morphology of embedded ZnSe nanoparticles affected by ZnSe/SiO2 molar ratio. The optical properties of thin film...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.