Phthalate-derivative/TiO2-modified electrode for electrochromic application

Tanaka, Satomi; Watanabe, Yuichi; Nagashima, Takeshi; Kobayashi, Norihisa

doi:10.1016/j.solmat.2009.02.022

Cited by 8 publications

(12 citation statements)

References 12 publications

(12 reference statements)

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“…The ECD can save power in steady colored state by using memory effect under the no bias condition with driving technique. Similarly, the ECD can quickly switch to bleached state under the revers bias condition …”

Section: Resultsmentioning

confidence: 97%

High‐Performance Electrochromic Optical Shutter Based on Fluoran Dye for Visibility Enhancement of Augmented Reality Display

Kim

et al. 2018

Advanced Optical Materials

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In this paper, a high‐performance electrochromic optical shutter (ECOS) based on fluoran dye and an augmented reality (AR) display system comprising of ECOS are proposed. The electrochromic reactions of the fluoran dye that transmit or absorb visible light depending on its redox state are activated by the protons generated from hydroquinone derivatives, thereby significantly improved visible light absorption and decreased driving voltage. The visible light‐absorbing function of ECOS is a sole solution for overcoming the main issue of low visibility of displayed images under strong ambient light conditions in optical see‐through head‐mounted displays (OST‐HMDs) implementing augmented reality. The proposed AR display effectively solves the problem by significantly increasing the ambient contrast ratio and color gamut of the displayed image on OST‐HMD even in the strong ambient light condition due to the excellent visible light‐absorbing function of ECOS.

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Section: Resultsmentioning

confidence: 97%

High‐Performance Electrochromic Optical Shutter Based on Fluoran Dye for Visibility Enhancement of Augmented Reality Display

Kim

et al. 2018

Advanced Optical Materials

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“…We have focused our research on the use of Si coupling agents to connect EC materials to the device electrodes and have reported EC properties of phthalate derivatives connected to TiO 2 -modified electrodes via Si coupling agents. 24) The large surface area of the TiO 2 film enabled connection of a large amount of a Si coupling agent and hence the phthalate derivative, resulting in a large absorbance change of the device. However, the retention properties of the colored state were still insufficient for practical use because of back electron transfer from the reduced phthalate molecules to the conduction band of TiO 2 .…”

Section: Introductionmentioning

confidence: 99%

Advantage of Immobilization of Phthalate Derivatives on Indium Tin Oxide Electrode over TiO₂ Electrode in Their Electrochromic Properties

Ura¹,

Nakamura²,

Kobayashi³

2013

Jpn. J. Appl. Phys.

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Electrochromism is known as an electrochemical reaction exhibiting coloration and can be applied to imaging devices. We successfully prepared a novel indium tin oxide (ITO) electrode modified by electrochromic molecules that displayed a magenta color via electrochemical reduction. The electrochromic molecules of a phthalate derivative were connected to the surface of the ITO electrode by a Si coupling agent. The electrochromic properties of the film were investigated in terms of film thickness and were compared to those of a film using a TiO2 substrate. The thicker film showed larger absorption change and better memory retention than did the film with a TiO2 substrate.

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“…On this basis, we have already reported the electrochemical properties of phthalate derivatives. [3][4][5][6][7] In the literature, 5 the three primary colors (cyan, magenta and yellow) were electrochemically obtained for diacetyl benzene, dimethyl terephthalate and biphenyl dicarboxylic acid diethyl ester in the ITO sandwich cell, respectively. Each color obtained was regarded as one of the three primary colors from the CIE 1931 colorimetric measurement.…”

Section: Introductionmentioning

confidence: 99%

Multicolored electrochromism in 4,4′-biphenyl dicarboxylic acid diethyl ester

Imaizumi

Watanabe

Nakamura

et al. 2011

Phys. Chem. Chem. Phys.

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We investigated the properties of 4,4'-biphenyl dicarboxylic acid diethyl ester (PCE). The PCE underwent a 2-step reduction at -1.5 V and -2.2 V. The color of the PCE changed from colorless to yellow in the first step and consequently to red in the second reduction step. A PCE based EC cell using an NiO-modified electrode was also fabricated. The NiO electrode worked as a counter reaction material for PCE reduction. The PCE-NiO cell achieved multi-coloration ranging from colorless to yellow and red, and also achieved high coloration efficiency and long term switching stability.

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Phthalate-derivative/TiO2-modified electrode for electrochromic application

Cited by 8 publications

References 12 publications

High‐Performance Electrochromic Optical Shutter Based on Fluoran Dye for Visibility Enhancement of Augmented Reality Display

High‐Performance Electrochromic Optical Shutter Based on Fluoran Dye for Visibility Enhancement of Augmented Reality Display

Advantage of Immobilization of Phthalate Derivatives on Indium Tin Oxide Electrode over TiO₂ Electrode in Their Electrochromic Properties

Multicolored electrochromism in 4,4′-biphenyl dicarboxylic acid diethyl ester

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Phthalate-derivative/TiO2-modified electrode for electrochromic application

Cited by 8 publications

References 12 publications

High‐Performance Electrochromic Optical Shutter Based on Fluoran Dye for Visibility Enhancement of Augmented Reality Display

High‐Performance Electrochromic Optical Shutter Based on Fluoran Dye for Visibility Enhancement of Augmented Reality Display

Advantage of Immobilization of Phthalate Derivatives on Indium Tin Oxide Electrode over TiO2 Electrode in Their Electrochromic Properties

Multicolored electrochromism in 4,4′-biphenyl dicarboxylic acid diethyl ester

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Advantage of Immobilization of Phthalate Derivatives on Indium Tin Oxide Electrode over TiO₂ Electrode in Their Electrochromic Properties