Indium Tin Oxide
Mostrando 1-12 de 32 artigos, teses e dissertações.
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1. Dendritic Gold Nanoparticles Towards Transparent and Electroactive Electrodes
Abstract: The combination of UV-visible absorption and electrochemical experiments (spectroelectrochemistry) enables to obtain highly specific spectroscopic information (in situ and operando) from modified surfaces. However, such application can be limited by the self-absorbance, for example, when metallic nanoparticles are present on modified surfaces. Indi
An. Acad. Bras. Ciênc.. Publicado em: 28/11/2019
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2. Transmissive to Dark Electrochromic and Fluorescent Device Based on Poly(fluorene-bisthiophene) Derivative
Films of a poly(fluorene-bisthiophene) derivative, named PFBT, were electrodeposited onto indium tin oxide (ITO) electrodes and their electrochromic and fluorescence properties were investigated. Such films displayed color variation from yellow, in the neutral state, to green, in the oxidized state, as shown by tracking of the CIE (Commission Internationale
J. Braz. Chem. Soc.. Publicado em: 24/10/2019
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3. Influence of pH in Obtaining Indium Tin Oxide Nanoparticles by Microwave Assisted Solvothermal Method
A systematic study about synthesis of In1-xSnxO2 (ITO) nanostructured crystals by microwave-assisted solvothermal method is reported. Different solutions using InCl3.4H2O and SnCl4.5H2O precursors in ethylene glycol solvent were prepared in distinct pHs (acid and basic ones). The syntheses were performed at 200 ºC using a heating rate of 50 ºC min-1 and so
Mat. Res.. Publicado em: 22/01/2018
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4. ITO Obtained by Spray Pyrolysis and Coating on Glass Substrate
Conductive thin films have various applications in different technological fields. Indium tin oxide (ITO) is a mixed oxide. In the film form, ITO has been widely employed as electrode in many optoelectronic devices. Methods like thermal evaporation, sputtering, chemical vapor deposition (CVD), electron beam, spray coating, and sol-gel synthesis give ITO thin
J. Braz. Chem. Soc.. Publicado em: 2017-12
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5. Electrochromic Properties of Polyaniline-Based Hybrid Organic/Inorganic Materials
Hybrid materials based on polyaniline (PAni) were obtained by in situ polymerization of aniline with chitosan and/or organically modified clay (nanomer I-24) in HCl. The samples were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM) and direct current (DC) electrical conductivity. Thi
J. Braz. Chem. Soc.. Publicado em: 2016-10
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6. Ultrafast Dynamics of Au Nanopyramid Interfaces Prepared by Nanosphere Lithography: Effect of Substrate Chemical Composition
This work describes ultrafast spectroscopy studies of Au triangular pyramid particle arrays deposited over glass (termed Au/glass), and 190 nm indium tin oxide (ITO) film (termed Au/ITO/glass) prepared by nanosphere lithography. The linear absorption spectra of Au/glass and Au/ITO/glass exhibit surface plasmon resonances at 800 and 870 nm, respectively, in g
J. Braz. Chem. Soc.. Publicado em: 2016-02
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7. Study on Needles and Cracks of Tin-doped Indium Oxide Tablets for Electron Beam Evaporation Process
Tin-doped indium oxide (ITO) tablets were used to deposit ITO films on p-GaN layer of light-emitting diodes. Needles and cracks in ITO tablets generated during electron beam evaporation process were deeply investigated. The formation of needles is predominantly resulted from the scanning trace, which is controlled by x and y axes scanning singles. The needle
Mat. Res.. Publicado em: 2015-06
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8. Optimisation of an asymmetric polymerase chain reaction assay for the amplification of single-stranded DNA from Wuchereria bancrofti for electrochemical detection
Single-stranded DNA (ssDNA) is a prerequisite for electrochemical sensor-based detection of parasite DNA and other diagnostic applications. To achieve this detection, an asymmetric polymerase chain reaction method was optimised. This method facilitates amplification of ssDNA from the human lymphatic filarial parasite Wuchereria bancrofti. This procedure prod
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-09
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9. Indium tin oxide synthesized by a low cost route as SEGFET pH sensor
Polycrystalline ITO films with good optoelectronics characteristics and homogeneous surface has been obtained upon annealing at 550 °C in N² atmosphere using a low-cost chemical vapor deposition (CVD) system. The films were evaluated as pH sensors in separative extended gate field-effect transistor (SEGFET) apparatus, exhibiting a sensitivity of 53 mV/pH,
Mat. Res.. Publicado em: 02/07/2013
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10. Synthesis of indium tin oxide nanoparticles by a nonhydrolytic sol-gel method
Indium tin oxide nanoparticles were synthesized in two different sizes by a nonhydrolytic sol-gel method. These powders were then transformed into ITO via an intermediate metastable state at between 300 and 600 ºC. The presence of characteristic O-In-O and O-Sn-O bands at 480 and 670 cm-1 confirmed the formation of ITO. The X-ray diffraction patterns indica
Química Nova. Publicado em: 2012
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11. Estudo das propriedades elétricas de células eletroquímicas emissoras de luz de derivados de polifluoreno / Electric properties study of polymer light-emitting electrochemical cells based on polyfluorene derivatives
Polymer light emitting electrochemical cells, PLECs, are organic electronic devices that have attracted commercial interest because they operate at low voltage and exhibit high performance without the need of specific electrodes such as indium tin oxide (ITO), calcium and others. This feature provides low cost of fabrication and exible devices. The charge in
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/11/2011
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12. Preparação e caracterização eletroquímica de filmes finos de nanotubos de carbono depositados sobre ITO / Preparation and electrochemical characterization of thin films of carbon nanotubes deposited on ITO
In this work were carried out some studies on electrochemical properties of carbon nanotubes (CNT) thin films deposited on ITO (Indium Tin Oxide) electrodes by electrophoretic deposition (EPD). Capacitance and electrochemical area measurements were made with films of three types of nanotubes with different dimensions and previous treatments. All measurements
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/07/2011