Triphenylamine-based multielectrochromic material and its neutral green electrochromic devices

Xu, Caixia; Zhao, Jinsheng; Cui, Chuansheng; Wang, Min; Kong, Ying; Zhang, Xianxi

doi:10.1016/j.jelechem.2012.07.002

Cited by 41 publications

(60 citation statements)

References 31 publications

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“…During routine measurements aimed at discerning the mechanism of doping/dedoping, multi‐electrochromic behavior has been observed. These systems exhibit four stable colors, fast switching times, high contrast, and good redox stability . Carbazole derivatives ( 68 ), which have lately attracted wide research attention have also been investigated as materials for electrochromic applications .…”

Section: Star‐shaped Compounds As Precursors Of π‐Conjugated Polymersmentioning

confidence: 99%

“…Star‐shaped conjugated polymers typically possess a drawback, also found in linear polymers, even if less common, namely their poor processability and, hence, issues with their characterization and further application. In the reviewed works, their application was limited to the use of polymers deposited directly on the electrode surface, for example in electrochromic devices …”

Section: Star‐shaped Versus Linear π‐Conjugated Systemsmentioning

confidence: 99%

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Advances in Star‐Shaped π‐Conjugated Systems: Properties and Applications

Jarosz

Łapkowski

Ledwon

2014

Macromol. Rapid Commun.

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Until recently π-conjugated organic materials are based mainly on linear systems. Recent years, however, have brought about increasing interest in molecules boasting a dendritic, branched, or star-shaped architecture. This tendency is a direct result of the ongoing search for materials with progressively better properties. Such compounds, featuring novel, 3D architectures, exhibit a multitude of interesting qualities, making them stand out from well-known materials. The direction of star-shaped compound application is determined by whether they are able to form aggregates, π-stacks. This feature is a source of some astounding properties, coveted in numerous applications. Among this class of compounds high charge mobility, high fluorescence efficiency, and good charge separation are all found. Depending on the structure of the core, the molecule may adopt various types of symmetry. Similarly, the conjugation of orbitals may extend over the whole structure or be interrupted at chosen segments. The number of papers pertaining to star-shaped oligomers and polymers is ascending with each year, evidencing a growing interest in them. Consequently, this Review focuses particularly on the most recent reports concerning modification of the structure and properties of the aforementioned type of compounds, as well as on the development of devices based on them.

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Section: Star‐shaped Compounds As Precursors Of π‐Conjugated Polymersmentioning

confidence: 99%

Section: Star‐shaped Versus Linear π‐Conjugated Systemsmentioning

confidence: 99%

Advances in Star‐Shaped π‐Conjugated Systems: Properties and Applications

Jarosz

Łapkowski

Ledwon

2014

Macromol. Rapid Commun.

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“…In addition, its wheel structure and high hole mobility make TPA a right choice as the central core for a three‐dimensional conjugated system. In addition, benzotriazole (BTz) is a conventional electron acceptor entity, which can be combined with an electron donor entity to manufacture low band gap D–A structured utilitarian organic semiconductor materials …”

Section: Introductionmentioning

confidence: 99%

Synthesis and electrochromic properties of triphenylamine containing copolymers: Effect of π-bridge on electrochemical properties

Hacıoğlu

Toksabay

Sendur

et al. 2013

J. Polym. Sci. Part A: Polym. Chem.

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In this study, a series of benzotriazole (BTz) and tri phenylamine (TPA)-based random copolymers; poly4-(5-P3) were synthesized to investigate the effect of TPA unit and p-bridges on electrochemical and spectroelectrochemical properties of corresponding polymers. The synthesis was carried out via Stille coupling for P1, P3, and Suzuki coupling for P2. Elec-trochemical and spectral results showed that P1 has an ambipolar character, in other words it is both p-type and n-type dopable, whereas P2 and P3 have only p-doping property. Effect of different p-bridges and TPA unit on the HOMO and LUMO energy levels, switching time, and optical contrast were discussed. All polymers are promising materials for electrochromic devices. V C 2013

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“…5(b)), PG1 thin film remained 82.7% of its initial ΔT. Several literatures have been focusing on the study of triphenylamine-based electrochromic thin films [39][40][41][42][43][44][45][46][47][48][49][50][51][52]. Toppare et al [53] recently synthesized triphenylamine-based electrochromic thin film by copolymerizing with a series of benzotriazole.…”

Section: Characterization Of Pg1 Filmmentioning

confidence: 99%