Electrochromic Effect
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Monochromatic double coloring effect on V2O5 thin films deposited by electron beam
ABSTRACT Electrochromic material is a thin film technology that has a close relationship with environmental sustainability since they can control the light and heat that enter and leave a building. Vanadium oxide films are electrochemically active for lithium and electron co-intercalation, presenting low optical variation in the low energy visible light, whi
Matéria (Rio J.). Publicado em: 25/11/2019
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2. Síntese e caracterização de compósito polipirrol/botriosferana : um estudo físico-químico
The polypyrrole films were electropolymerized on the surface of FTO. From two solutions: (i) pyrrole 0.025 M and KCl 0,1 M; (ii) pyrrole 0.025 M and botriospherana 0,5 mg ml-1 applying a potential of + 0,7 V, the polymeric film was deposited until reach a relative thickness of 20 µC cm-2. The spectrophotometric measurements were carried out with the Genesys
Publicado em: 2007
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3. Estudo da difusão química de íons Li + em filmes finos de materiais de intercalação
Este trabalho teve como objetivo principal o estudo da difusão de íons Li+ em filmes finos de óxidos de W, Mo e no óxido misto W-Mo. Foi realizado um estudo conceitual da termodinâmica básica de uma cela eletroquímica e da cinética da difusão em um eletrodo de intercalação. As soluções da segunda lei de Fick para duas condições de contorno na
Publicado em: 2006
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4. Estudo das propriedades eletro- e fotoeletroquimicas do composito TiO2/PPi
Great advances were reached in the last three decades in the development of materials which bring together properties that are of interest in technological applications. The conducting polymers, since their discovery in 1977, were extensively studied in order to be used, e.g., in battery and electrochromic devices. Nowadays, the reseach about this matter is
Publicado em: 2002
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5. Sintese, propriedades e aplicações do poli-pirrol dopado com anions anfifilicos
Research on intrinsically conducting polymers has grown in the last years due their potential technological applications. They can be reversively driven to their conductive or insulator states by a redox process. This involves the introduction or ions into the material in order to maintain the charge eletroneutrality and, generally, occurs during polymer syn
Publicado em: 1992
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6. Propriedades eletroquimicas e eletrocromicas de poli(anilina) preparada quimicamente
Poly(aniline), PANI, is known since the last century. It is one of the most stable and attractive conducting polymers. PANI is generally prepared by oxidation of aniline in acid medium, using a chemical oxidant or by electrochemical oxidation. For technological purposes and large scale synthesis the chemical method is more adequate. As a consequence, in this
Publicado em: 1991
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7. Ultrasensitive two-color fluorescence probes for dipole potential in phospholipid membranes
The principle of electrochromic modulation of excited-state intramolecular proton-transfer reaction was applied for the design of fluorescence probes with high two-color sensitivity to dipole potential, Ψd, in phospholipid bilayers. We report on the effect of Ψd variation on excitation and fluorescence spectra of two new 3-hydroxyflavone probes, which poss
National Academy of Sciences.
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8. Acridones: a chemically new group of protonophores.
Although the interaction of proton-conducting ionophores (protonophores) with photosynthetic electron transport has been extensively studied during the past decade, the mode of action of protonophores remained uncertain. For a better understanding of the molecular mechanism of the action of protonophores, the introduction of chemically new types of molecules