A new multicolored and near-infrared electrochromic material based on triphenylamine-containing poly(3,4-dithienylpyrrole)

Lai, Jian‐Cheng; Lu, Xueliang; Qu, Botao; Feng, Liang; Li, Chenghui; You, Xiao‐Zeng

doi:10.1016/j.orgel.2014.10.033

Cited by 31 publications

(12 citation statements)

References 45 publications

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“…The first oxidation peaks of the polymer P(DTP-TPA)s are at 0.91V, 0.85V, 0.65V, 0.67V, 0.62V respectively, which are ascribed to the radical cation (TPA + ) formation which are similar to the reported TPA derivatives [44]. The peak appeared at 1.36V, 1.34V, 1.20, 0.97V, 1.00V respectively, maybe occur from DTP unit [31]. All these observation are proved that the polymers are synthesized successfully.…”

Section: 1synthesis and Characterizationsupporting

confidence: 73%

“…Especially, Hsiao's group has done some electropolymerization of poly(amide-triarylamine)s containing triptycene units, which exhibit reversible electrochemical oxidation process, higher coloration efficiency and stronger color changes [30]. In addition, You's group synthesized poly-DTP-Ph-TPA by electropolymerization, which proved the polymer has the high contrast and a very short response time [31]. In J. S. Zhao's group, they obtained a kind of polymer based on 4,4'-di(N-carbazoyl)biphenyl and 2, 2'-bithiophene units by electropolymerization in 2011 [32].…”

Section: Introductionmentioning

confidence: 99%

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Electrochromic polymers electrochemically polymerized from 2, 5–dithienylpyrrole (DTP) with different triarylamine units: Synthesis, characterization and optoelectrochemical properties

Cai

Wen

Wang

et al. 2017

Electrochimica Acta

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Section: 1synthesis and Characterizationsupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Electrochromic polymers electrochemically polymerized from 2, 5–dithienylpyrrole (DTP) with different triarylamine units: Synthesis, characterization and optoelectrochemical properties

Cai

Wen

Wang

et al. 2017

Electrochimica Acta

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“…Most electropolymerized electrochromes consist of aniline, , triphenylamine, − thiophene, , or 3,4-ethylenedioxythiophene (EDOT) , moiety and their EC properties are realized by reversible electrochemical oxidation of the electron-donating groups. Among them, triphenylamine derivatives have been extensively investigated as polymeric electrochromes prepared by electropolymerization method due to their unique properties, such as reversible redox property, strong electron-donating ability, and high color contrast between neutral and oxidized states.…”

Section: Introductionmentioning

confidence: 99%

Colorless-to-Black Electrochromism from Binary Electrochromes toward Multifunctional Displays

Chang

Chen

et al. 2020

ACS Appl. Mater. Interfaces

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Cyclohexane-1,2,4,5-tetracarboxylic diimide with a nonconjugated core has been incorporated to bridge two conventional triphenylamine units. The obtained monomer has successfully hypsochromically shifted the maximum absorption wavelength by 10 nm in comparison to the one with a pyromellitic diimide bridge. Consequently, a colorless electrochromic (EC) polymer poly(bis(N,N-diphenyl-4-aminophenyl)cyclohexane-1,2,4,5tetracarboxylic diimide) (PTPA-HDI) was electropolymerized on indium tin oxide (ITO)coated glass. The morphology, absorption, and spectroelectrochemistry properties of polymer PTPA-HDI films electropolymerized by different scan cycles have been systematically investigated. It is found that comprehensive properties, such as color contrast and initial transparence, can be achieved for the polymer film electropolymerized by 15 scan cycles. Moreover, to realize colorless-to-black electrochromism, an asymmetric viologen derivative 1-(4-cyanophenyl)-1′-hexyl-4,4′-bipyridinium dihexafluorophosphate (HVCN) has been designed and straightforward synthesized. With the introduction of a cyanophenyl group and a hexyl chain on the two pyridinium units, colorless-to-green electrochromism can be realized for this processible viologen derivative. The absorption band at 495 nm of colorated PTPA-HDI compensates well for the valley in the absorption spectrum of colorated HVCN. Therefore, different types of colorless-to-black electrochromic devices (ECDs) are fabricated using polymer PTPA-HDIdeposited ITO electrode and HVCN-based gel electrolyte. Such a supporting electrolyte-free ECD with binary electrochromes exhibits fast coloration, high color contrast, and excellent reversibility. Furthermore, an encryption ECD is demonstrated by switching a black two-dimensional code. In addition, an autodigital display is integrated on a smart window and hence different functions can be realized in a single ECD. Overall, this study may facilitate the understanding of the EC behaviors of binary electrochromes and present a new path to design multifunctional displays.

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“…In general, the PSNS homopolymers displayed a yellow to blue coloration with a short switching time. In addition, the electrochemical and electrochromic properties can be easily adjusted by attaching a second electroactive moiety such as triarylamine on the side chain [43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Electrosynthesis and Electrochromism of a New Crosslinked Polydithienylpyrrole with Diphenylpyrenylamine Subunits

2020

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A new electroactive monomer with two 2,5-di(2-thienyl)pyrrole (SNS) units and one diphenylpyrenylamine (DPPA) subunit, namely N,N-bis(4-(2,5-di(2-thienyl)-1H-pyrrol-1-yl)-phenyl)-1-aminopyrene (DPPA-2SNS), was synthesized from 1,4-di-(2-thienyl)butane-1,4-dione with N,N-di(4-aminophenyl)-1-aminopyrene through the Paal–Knorr condensation reaction. Visible and near-infrared (NIR) electrochromic polymer films could be facilely generated on the ITO-glass surface by the electrochemical polymerization of DPPA-2SNS in an electrolyte solution. The electro-synthesized polymer films exhibit multi-staged redox processes and multi-colored anodic electrochromic behavior. A multi-colored electrochromism, with yellowish orange, greyish blue, and purplish black colors, was observed in the polymer film by applying a positive potential. The polymer films exhibit reasonable coloration efficiency, fast response time, and good cycling stability, especially when switched between neutral and the first oxidation states. For comparison, N-(1-pyrenyl)-2,5-di(2-thienyl)pyrrole (Py-SNS) was also prepared and characterized with electrochemical and electro-optical properties.

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A new multicolored and near-infrared electrochromic material based on triphenylamine-containing poly(3,4-dithienylpyrrole)

Cited by 31 publications

References 45 publications

Electrochromic polymers electrochemically polymerized from 2, 5–dithienylpyrrole (DTP) with different triarylamine units: Synthesis, characterization and optoelectrochemical properties

Electrochromic polymers electrochemically polymerized from 2, 5–dithienylpyrrole (DTP) with different triarylamine units: Synthesis, characterization and optoelectrochemical properties

Colorless-to-Black Electrochromism from Binary Electrochromes toward Multifunctional Displays

Electrosynthesis and Electrochromism of a New Crosslinked Polydithienylpyrrole with Diphenylpyrenylamine Subunits

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