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Cu2CoSnS4 (CCTS) nanoparticles with 8–12 nm were synthesized by a robust, solvent free, single step, thermal decomposition process for the first time. Nanoparticle based ink was coated over fluorine doped tin oxide (FTO), soda lime glass (SLG) substrate via an inexpensive spin coating process to form films. The diffusion of sodium from SLG substrate was found to have an effect on band gap and resistivity...
A novel nanocomposite material was designed and synthesized for potential use in energy storage devices. It comprises of gold nanoparticles of diameter 5nm and SU-8 polymer. Scanning Electron Microscopy, Transmission Electron Microscopy and Energy Dispersive X-ray Spectroscopy techniques were used for the characterization of the nanocomposite material. The presented work represents a major first step...
This paper reports a new class of biosensors based on composite nanomaterial thin film. The composite nanomaterial film is synthesized using a simple vacuum filtration method. Using composite nanomaterial film, we can not only simplify the positioning and integration fabrication process of nanoscale materials into a functional device, but also enhance the sensing surface area significantly, which...
Results related to synthesis, characterization and applications of Ag nanoclusters for Si porosification and SnO2-based gas sensors optimization are presented in given report. It is shown that concentration and size of the silver nanoparticles deposited on a surface of monocrystalline silicon can be controlled by SILD conditions.
Gold nanoneedles arrays were fabricated on glass substrates using an ion-beam sputtering technique. Gold nanoneedles with a tunable length and base diameter of 200 nm were formed with a density of 20 ??m-2. The sharp tips of the nanoneedles exhibited an apex diameter of 20 nm and an apex angle of 20??. These arrays were evaluated as potential surface-enhanced Raman scattering (SERS) substrates using...
In summary, we presented plasmonic high-efficiency Au-CdTe nanocomposite films in a three-dimensional construction of repeating layers. These composites integrate Au nanoparticles at a fixed optimal dielectric spacing and plasmon-couple them with CdTe nanocrystal emitters for significantly enhanced emission. In the Au-CdTe nanocomposite film, we showed that the emission of CdTe NCs is increased by...
Highly conductive films are crucial for the development of flexible electronics which are necessary components of flexible display device. In this work, the ink-jet printed nanosilver films were prepared with a relatively low sheet electrical-resistance of 0.96 Omega/square after heat-treated at the temperature 200degC for 30 min. The conductive mechanism of the nanosilver films was studied under...
In the present study, non-stoichiometric tungsten oxide (WO3-x) nanomaterials synthesized by a modified plasma arc gas condensation technique were added into anatase titanium oxide (a-TiO2) which was used as photoanode materials in dye-sensitized solar cells (DSSC). The WO3-x/a-TiO2 sample was characterized by FESEM, XRD, HRTEM, XPS and UV-visible spectra techniques. The photovoltaic efficiency of...
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...
Improvement of dye sensitized solar cell was investigated using methyl-violet dye and nanocrystalline ZnO thin film electrodes. A low cost fabrication method and low cost materials were used to prepare this photocell. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to characterize the microstructure and surface properties of dye coated ZnO electrodes. According to the...
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