Fluorescent and electrochromic polymers from 2,8-di(carbazol-9-yl)dibenzothiophene and its  S,S -dioxide derivative

Hsiao, Sheng‐Huei; Wu, Li-Chu

doi:10.1016/j.dyepig.2016.06.043

Cited by 37 publications

(19 citation statements)

References 55 publications

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“…As shown in Figure 6a, the PtnCz film does not show a distinct absorption peak in its neutral state. Nevertheless, new absorption bands appear at 430 and 750 nm after a potential of more than 1.2 V was applied, which can be ascribed to the generation of polaron and bipolaron bands for the PtnCz film [34]. Table 2.…”

Section: Spectroelectrochemical Characterizations Of Ptncz P(tncz-btmentioning

confidence: 99%

Electrosynthesis of Copolymers Based on 1,3,5-Tris(N-Carbazolyl)Benzene and 2,2′-Bithiophene and Their Applications in Electrochromic Devices

Kuo

Lee

2017

Polymers

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Poly(1,3,5-tris(N-carbazolyl)benzene) (PtnCz) and three copolymers based on 1,3,5-tris(N-carbazolyl)benzene (tnCz) and 2,2 -bithiophene (bTp) were electrochemically synthesized. The anodic P(tnCz1-bTp2) film with a tnCz/bTp feed molar ratio of 1/2 showed four colors (light orange at 0.0 V, yellowish-orange at 0.7 V, yellowish-green at 0.8 V, and blue at 1.1 V) from the neutral state to oxidized states. The optical contrast (∆T%) and coloration efficiency (η) of the P(tnCz1-bTp2) film were measured as 48% and 112 cm 2 ·C −1 , respectively, at 696 nm. Electrochromic devices (ECDs) based on PtnCz, P(tnCz1-bTp1), P(tnCz1-bTp2), P(tnCz1-bTp4), and PbTp films as anodic polymer layers and poly (3,4-dihydro-3,3-dimethyl-2H-thieno[3,4-b-1,4]dioxepin) (PProDOT-Me 2 ) as cathodic polymer layers were assembled. P(tnCz1-bTp2)/PProDOT-Me 2 ECD showed three various colors (saffron yellow, yellowish-blue, and dark blue) at potentials ranging from −0.3 to 1.5 V. In addition, P(tnCz1-bTp2)/PProDOT-Me 2 ECD showed a high ∆T% value (40% at 630 nm) and a high coloration efficiency (519 cm 2 ·C −1 at 630 nm).

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Section: Spectroelectrochemical Characterizations Of Ptncz P(tncz-btmentioning

confidence: 99%

Electrosynthesis of Copolymers Based on 1,3,5-Tris(N-Carbazolyl)Benzene and 2,2′-Bithiophene and Their Applications in Electrochromic Devices

Kuo

Lee

2017

Polymers

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“…After the pioneeristic works reported by Kuo and coworkers, many triphenylamine-based polymers were proposed, where the TPA moiety is generally integrated into the polymer backbone. [112][113][114][115][116][117][118][119] Actually, most of these polymers show low fluorescence contrast due to the intrinsic nature to exhibit the ACQ. The strategies used to afford highly emissive polymers in the solid state are: fluorescence enhancement by the introduction of AIE groups either as pendant of the diphenylamine unit (Scheme 2b) or integrated into the arylamine-polymer backbone (Scheme 2c), or mitigation of the ACQ effect by bulky pendant substituents attached to the diphenylamine-polymer backbone (Scheme 2b), or as conjugation extension of the diphenyl moiety (Scheme 2b).…”

Section: Polymers Based On Triphenylamine and Aie Active Unitsmentioning

confidence: 99%

Overview on the Recent Progress on Electrofluorochromic Materials and Devices: A Critical Synopsis

Corrente

Beneduci

2020

Advanced Optical Materials

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case of electroluminochromism (ELC), which includes tuning of the phosphorescence. This is mainly observed in metal organic complexes based on metals with d 6 , d 8 , and d 10 configuration such as Ir III , Ru II , and Eu III that, in contrast to entirely organic systems, exhibit emission lifetimes of several seconds. [19,20] Metal complexes generally have also rich excited state properties, good redox reversibility, high emission quantum yields, thereby showing electroluminochromic response with multicolor tunable emission in a wide wavelength range. [19,20] This interesting class of ELC materials has been extensively discussed in a some very recent reviews [19,20,21] to which the reader is reminded. EFC technology is highly desirable in electro-optic applications [8-10] as well as in fluorescent imaging. [22-24] For most of the above applications, EFC materials and devices should possess ideal properties such as high contrast of optical response, rapid switching time, long-term stability,

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“…To pander to the fast development of various fields, highly urgent demand is to design and synthesize new molecules used as CP precursors according to the principle of adjustable band gap that affects optical and electrical properties . So far, the CPs based on thiophene units such as bithiophenes, 2‐(thiophen‐2‐yl)furan, dibenzothiophenes, thieno[3,2‐ b ]thiophenes, benzodithiophenes, and cyclopentadithiophenes have been fabricated and constructed various organic electronic and photonic devices.…”

Section: Introductionmentioning

confidence: 99%

High‐quality freestanding flexible poly(5‐(2,3‐dihydrothieno[3,4‐b][1,4]dioxin‐5‐yl)‐1H‐indole) film: Electrosyntheses, characterization, and optical properties

Wang

Zhou

et al. 2018

J of Applied Polymer Sci

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A novel co-monomer 5- (2,3-dihydrothieno[3,4-b] [1,4]dioxin-5-yl)-1H-indole (EDTI), based on the combinations of indole and 3,4-ethylenedioxythiophene (EDOT) groups, was synthesized and electrodeposited into flawless free-standing flexible poly (5-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-1H-indole) (PEDTI) film by Rui Wang, Guo Ye, Weiqiang Zhou and their colleagues. The colors of as-prepared PEDTI film could switch reversibly from purple to brown during the n-and p-doping. Fluorescence spectral studies revealed PEDTI was good blue-green light emitter with the best emission wavelength 461 nm and 488 nm. These results implied that PEDTI had potential applications for photoelectric devices.46929 Thermal conductivity improvement in electrically insulating silicone rubber composites by the construction of hybrid three-dimensional filler networks with boron nitride and carbon nanotubes 47016 High-quality freestanding flexible poly (5-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-1H-indole) film: Electrosyntheses, characterization, and optical properties

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Fluorescent and electrochromic polymers from 2,8-di(carbazol-9-yl)dibenzothiophene and its S,S -dioxide derivative

Cited by 37 publications

References 55 publications

Electrosynthesis of Copolymers Based on 1,3,5-Tris(N-Carbazolyl)Benzene and 2,2′-Bithiophene and Their Applications in Electrochromic Devices

Electrosynthesis of Copolymers Based on 1,3,5-Tris(N-Carbazolyl)Benzene and 2,2′-Bithiophene and Their Applications in Electrochromic Devices

Overview on the Recent Progress on Electrofluorochromic Materials and Devices: A Critical Synopsis

High‐quality freestanding flexible poly(5‐(2,3‐dihydrothieno[3,4‐b][1,4]dioxin‐5‐yl)‐1H‐indole) film: Electrosyntheses, characterization, and optical properties

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