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Publikationer - Tekniska sektionen - Uppsala universitet

Tungsten oxide-based materials have drawn huge attention for their versatile uses to construct various energy storage devices. Particularly, their electrochromic devices and optically-changing devices are intensively studied in terms of energy-saving. Furthermore, based on close connections in the forms of device structure and working mechanisms between these two main applications Refractive-index-matched indium–tin-oxide (ITO) electrode for thin-film transistor liquid crystal displays is presented to reduce optical losses caused by Fresnel reflections. Simulations show a 24% improvement in optical transmittance when the conventional dense ITO is An optical sensor device includes an optical waveguide portion having a core, the core having a first refractive index, and a functional material layer coupled to the optical fiber portion, the functional material layer being made of a metal oxide material, the functional material layer being structured to have a second refractive index, the second refractive index being less than the first This study investigates the electrical characteristics and physical analysis for an amorphous tungsten-doped indium-zinc oxide thin film transistor with different backchannel passivation layers (BPLs), which were deposited by an ion bombardment-free process. A … A high-refractivity low-Ba glass micro-bead is a TiO2-ZrO2-SiO2 system and is proportionally prepared from TiO2, ZrO2, SiO2, Al2O3, B2O3, ZnO and BaO. The content of its free Ba is less than 1000 mg/kg. Extinction coefficient [ i ] k = 2.9043. Created with Highcharts 5.0.14.

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Blue-colored samples exhibit a broad Title: Microsoft Word - ISCA-RJCS-2011-193 Done.docx Author: Admin Created Date: 1/17/2012 6:39:26 PM Both types of tungsten oxide films showed low absorption and high transparency in the visible range. As expected, we found that the film density, and hence the refractive index and extinction coefficient, depended on coating solution chemistry, hydration, and densification procedures. Refractive-index-matched indium–tin-oxide (ITO) electrode for thin-film transistor liquid crystal displays is presented to reduce optical losses caused by Fresnel reflections. Simulations show a 24% improvement in optical transmittance when the conventional dense ITO is Therefore, refractive index is used to qualify not only the ˝nal product for supply, but also to monitor batch to batch variation of incoming raw slurry and validate the blend addition steps. In long-term studies at a leading-edge analog device fab, refractive index measurements have replaced auto-titration in qualifying H2O2 concentration in slurry delivery systems.

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1995-11-01 We investigated, for the first time, the use of tungsten oxide (WO 3) and calcium fluoride (CaF 2) as high (2.15) and low (1.4) refractive index materials, respectively, for DBR fabrication. They consist of nine pairs of WO 3 /CaF 2 layers, with a central wavelength λ c … The refractive index of tungsten oxide thin film was found to increase with sputtering power but decreased with wavelength as shown in figure 4. Increase in refractive index can be associated with physical and compositional changes (Smith, 1995) at higher sputtering power resulting to a higher packing density of the deposited film. Refractive Index of W, Tungsten.

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Tungsten oxide films were prepared by a complexing agent-assisted sol-gel process. All the films were at 500°C were crystalline and transparent. The refractive index n and extinction coefficient k of the films were calculated from the transmittance and reflectance spectra in the visible and infrared regions. [Show full abstract] The refractive index of the films was found to be in the range of 1.7–2.3 and the optical band gap energy, Eog, estimated from the absorption analysis, was in the range of 2 film thickness knowing the refractive index (which is about 2.20 [18, 19]). The tungsten oxides were observed by SEM and showed as expected smooth surfaces with no cracks because of the low oxidation temperature. XRD shows a monoclinic (m-WO 3) or orthorhombic (o-WO 3) nanocrystal-line structure.

CTK8B2846. 5068AF. More The optical band gap of the films increased from 3.00 to 3.14 eV and the refractive index of the films decreased from 2.26 to 2.08 with the increase of oxygen partial pressure from to Pa, Refractive Index Database. The table below contains links to refractive index data for common materials. Each material in the database has refractive index listed as a function of wavelength over a range typically required for thin-film thickness measurement. λ (nm) Tungsten oxide films were prepared by sol-gel and sputtering processes. The refractive index of the film increased with increasing wavelength in the visible and infrared region.
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1988: n,k 0.667-200 µm. Wavelength: µm (0.667 – 200) Complex refractive index (n+ik) TUNGSTEN OXIDE, WO 3. CAS 1314-35-8 Melting Point (0 C) 1473 Evaporation Temperature (0 C) 1460 Density (g/cm 3) 7.1 Refractive Index: 1.7 Tungsten trioxide (WO 3) is the most widely used material for the active layer of electrochromic devices.

2019: monolayer film; n,k 0.38-0.89 µm.
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Akademiska meriter: Docent i teknisk fysik med inriktning mot elektronik  in noblemetal nanostructures are sensitive to refractive index changes close to the Electrochromic Nickel – Tungsten Oxides : Optical, Electrochemical and  Tungsten oxide based sensor for oxygen detection The sensors Controlling the refractive index of glass is important to develop a photosensitive paste for  description 20; GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound a core coated with only one layer having a high or low refractive index Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide,  copper alloys, stainless steel, aluminium, aluminium oxide, aluminium alloys, 1C004Uranium titanium alloys or tungsten alloys with a "matrix" based on iron, a measuring range, when compensated for the refractive index of air; or | d. Få leverantör notering av Barium oxide anhydrous och lika produkt. Refractive Index: 1.98.

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If the file is not available for download, you can request our proprietary file by clicking "Request". Colored state, Complex refractive index, electrochromic, tungsten oxide: Abstract: Tungsten trioxide (WO3) is the most widely used material for the active layer of electrochromic devices. Knowledge of the complex refractive index over the range of coloration states is required for device design. Tungsten oxide films were prepared by sol-gel and sputtering processes. The refractive indices and extinction coefficients of the films were calculated from the transmittance and reflectance spectra in the visible and infrared regions. The concept is demonstrated by tungsten trioxide inverse opal structure as optical transducer material for hydrogen sensing.

More The optical band gap of the films increased from 3.00 to 3.14 eV and the refractive index of the films decreased from 2.26 to 2.08 with the increase of oxygen partial pressure from to Pa, Refractive Index Database.