Topic
Electrochromism
About: Electrochromism is a research topic. Over the lifetime, 13097 publications have been published within this topic receiving 294637 citations.
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TL;DR: A series of dual polymer electrochromic devices (ECDs) based on 12 complementary pairs of conducting polymer films have been constructed using 3,4-ethylenedioxythiophene-containing conducting polymers as discussed by the authors.
Abstract: A series of dual polymer electrochromic devices (ECDs) based on 12 complementary pairs of conducting polymer films have been constructed using 3,4-ethylenedioxythiophene-containing conducting polymers. Poly[3,6-bis(2-(3,4-ethylenedioxythiophene))-N-methylcarbazole] (PBEDOT-NCH3Cz), poly[3,6-bis(2-(3,4-ethylenedioxythiophene))-N-eicosylcarbazole] (PBEDOT-NC20H41Cz), and poly[4,4‘-bis(2-(3,4-ethylenedioxythiophene))biphenyl] (PBEDOT-BP) were utilized as anodically coloring polymers that electrochemically switch between an oxidized deep blue absorptive state and a transmissive (orange or yellow) reduced state. Poly(3,4-ethylenedioxythiophene) (PEDOT) and its alkyl derivatives (PEDOT-C14H29 and PEDOT-C16H33) have been used as high-contrast cathodically coloring polymers that switch between a deep blue absorptive state in the reduced form and a sky blue, highly transmissive state in the oxidized form. The dual polymer ECDs were constructed by separating complementary pairs of EC polymer films, deposited on ITO...
423 citations
TL;DR: An organic electronic paper display technology (see Figure and also inside front cover) is presented in this article, where the electrochromic display cell together with the addressing electrochemical transistor form si...
Abstract: An organic electronic paper display technology (see Figure and also inside front cover) is presented. The electrochromic display cell together with the addressing electrochemical transistor form si ...
419 citations
TL;DR: It is demonstrated that ion-trapping-induced degradation, which is commonly believed to be irreversible, can be successfully eliminated by constant-current-driven de-Trapping, i.e., WO3 films can be rejuvenated and regain their initial highly reversible electrochromic performance.
Abstract: There is keen interest in the use of amorphous WO3 thin films as cathodic electrodes in transmittance-modulating electrochromic devices1–4. However, these films suer from ion-trapping-induced degra ...
415 citations
Book•
01 Jan 1998
TL;DR: The Structure of Bipyridilium Species as mentioned in this paper and the Radical Cation of Dimer Formation are discussed in detail in Section 2.2.1.1].
Abstract: Introduction and Overview. Synthesis of Viologens. Spectroscopic Properties of Viologen Species. The Structure of Bipyridilium Species. The Dication: Charge-transfer Equilibria. The Radical Cation: Dimer Formation. The Di-Reduced Bipyridilium Species: The Comproportionation Reaction. Adsorption of the Viologens. Electrochemistry and Electron-transfer Reactions. Photochemistry of the Viologens and Solar-energy Conversion. Electron Mediation, Herbicidal Activity and Toxicity. Electrochromism in Viologen-based Systems. Solid-state Conductivity and use of Viologens in Molecular Electronics. Supramolecular and Self Assembly Chemistry of the Viologens. Indexes.
411 citations
TL;DR: In this paper, uniform crystalline WO3 nanorods and their assembly without any surfactants were synthesized by using a facile hydrothermal process without employing lithium ions and sulfates.
Abstract: We report the synthesis of uniform crystalline WO3 nanorods and their assembly without any surfactants. WO3 nanorods have been synthesized by using a facile hydrothermal process without employing lithium ions and sulfates. Transparent WO3 nanorod film has been prepared by assembled coating of the as-synthesized WO3 nanorods suspension onto ITO coated glass. It is found that the assembly was not affected by the surface properties of substrates, but dependent on the drying rate of the film, the concentration of suspension, and the aspect ratio of nanorods. The assembly process is proposed to follow an aggregation−deposition mechanism. The resulting WO3 nanorod film exhibits high electrochromic stability and comparable color display, contrast, and coloration/bleaching response.
411 citations