Synthetic strategies, molecular engineering and applications of semiconducting polymers based on diarylethylene units in electronic devices

Zhang, Yunchao; Zhang, Weifeng; Wang, Liping; Yu, Gui

doi:10.1039/d2tc04383a

Cited by 6 publications

(6 citation statements)

References 182 publications

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“…Conjugated polymer photocatalysts can be synthesized by Suzuki coupling, Stille coupling, the Sonogashira coupling reaction, direct C-H arylation polymerization (DArP), etc. Among them, the DarP strategy has the advantages of simplified synthetic steps, higher atomic economy, and lower cost, which conforms well to the 12 principles of green chemistry for avoiding side effects and using toxic reagents [33][34][35]. In continuation of our previous efforts on diarylethene-based D-A CP photocatalysts [31,32], here, we try to disclose the effect of different thiophene-based building blocks on the PHP of D-A conjugated polymers.…”

Section: Introductionmentioning

confidence: 80%

Effect of Controlling Thiophene Rings on D-A Polymer Photocatalysts Accessed via Direct Arylation for Hydrogen Production

Liu

Peng

et al. 2023

Molecules

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Conjugated polymer photocatalysts for hydrogen production have the advantages of an adjustable structure, strong response in the visible light region, adjustable energy levels, and easy functionalization. Using an atom- and step-economic direct C–H arylation method, dibromocyanostilbene was polymerized with thiophene, dithiophene, terthiophene, and fused thienothiophene and dithienothiophene, respectively, to produce donor–acceptor (D-A)-type linear conjugated polymers containing different thiophene derivatives with different conjugation lengths. Among them, the D-A polymer photocatalyst constructed from dithienothiophene could significantly broaden the spectral response, with a hydrogen evolution rate up to 12.15 mmol h−1 g−1. The results showed that the increase in the number of fused rings on thiophene building blocks was beneficial to the photocatalytic hydrogen production of cyanostyrylphene-based linear polymers. For the unfused dithiophene and terthiophene, the increase in the number of thiophene rings enabled more rotation freedom between the thiophene rings and reduced the intrinsic charge mobility, resulting in lower hydrogen production performance accordingly. This study provides a suitable process for the design of electron donors for D-A polymer photocatalysts.

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Section: Introductionmentioning

confidence: 80%

Effect of Controlling Thiophene Rings on D-A Polymer Photocatalysts Accessed via Direct Arylation for Hydrogen Production

Liu

Peng

et al. 2023

Molecules

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“…As a result, its applications in chaotic systems lead to more complex dynamical features. Memristors offer a wide range of applications in numerous fields, including memory storage [12], artificial neural networks [13], biomedical sensors [14], and chaotic circuits [15]. Memristors have recently been used in chaotic systems in two different approaches.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of memristive Liu system and its DSP implementation

Tayyab,

Sun,

Yao

et al. 2024

Phys. Scr.

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In this paper, a novel four-dimensional memristive system is investigated to generate abundant dynamical behaviors. By Combining the Liu chaotic system with an ideal memristor, an enhanced chaotic system is proposed. Dynamical analysis indicates that the new system sustains stable chaotic states and exhibits complex behaviors, with the help of the Lyapunov exponents, bifurcation diagrams, Poincaré section, parametric offset boosting, and SE complexity. The coexistence of attractors is investigated by the variation of parameters. The chaotic performance is enhanced in the proposed system, broadens the range of parameters for chaotical oscillations, and transforms periodic and quasiperiodic states into chaos. The practical applicability and feasibility of the system are validated via NIST testing and DSP implementation. The system exhibits resilient dynamical characteristics that make it highly suitable for deployment in various domains, including secure communication and signal detection.

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“…Their molecular design strategies are listed as follows: (1) NBDO- alt -DTE, the main component of these conjugated polymers, is responsible for providing a planar polymeric conjugated backbone, strong intra- and intermolecular interactions, preferable molecular self-assembly properties, and thus high charge transport properties (Figure b). The NBDO unit owns a strong electron-deficient, rigid, and planar conjugated backbone, and most NBDO-based D–A conjugated polymers exhibited high charge mobilities, indicating that NBDO is an excellent electron-withdrawing building block for constructing high-mobility conjugated polymers. , Meanwhile, DTE has also been proven by many studies that it is an outstanding and highly planar electron-donating building block. , Therefore, the NBDO- alt -DTE D–A pair has great potential to exhibit high charge transport properties. (2) BBT is responsible for providing an open-shell characteristic.…”

Section: Introductionmentioning

confidence: 99%

“…37,38 Meanwhile, DTE has also been proven by many studies that it is an outstanding and highly planar electron-donating building block. 39,40 All of the conjugated polymers showed unique n-type charge transport characteristics with the maximum mobilities (μ e,max ) of 0.64−0.12 cm 2 V −1 s −1 , respectively. Note that the μ e of P2−P4 are higher than or comparable to those of BBTcontaining conjugated polymers reported so far.…”

Section: ■ Introductionmentioning

confidence: 99%

Incorporation of the Benzobisthiadiazole Unit Leads to Open-Shell Conjugated Polymers with n-Type Charge Transport Properties

et al. 2023

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Herein, we report a novel method for constructing polymeric conjugated radicals, introducing an open-shell benzobisthiadiazole (BBT) unit to a (3E,7E)-3,7-bis(2-oxo-1H-pyrrolo-[2,3-b]pyridine-3(2H)ylidene)benzo[1,2-b:4,5-b′]difuran-2,6-(3H,7H)-dione-alt-(E)-1,2-di(thiophen-2-yl)ethene polymeric conjugated backbone (P1 with closed-shell structure) affording conjugated polymers P2−P4 with open-shell characteristics.Through this method, the spin characteristic of the polymer conjugated radicals can also be easily tuned, in which the spin concentration of P2−P4 increases with the increase of the BBT ratio. Moreover, P2−P4 have narrowed energy gaps and n-type charge transport properties with electron mobilities of 0.12−0.35 cm 2 V −1 s −1 , comparable to or higher than those of BBT-containing conjugated polymers reported so far. Microstructural investigations indicated that the gradual decrease of μ e from P1 to P4 originates from their BBT-caused deteriorating molecular aggregations in solid thin films. Our results show that incorporating an open-shell moiety into a high-performance conjugated backbone is a promising method for developing polymeric conjugated radicals with high mobility and tunable open-shell character.

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Synthetic strategies, molecular engineering and applications of semiconducting polymers based on diarylethylene units in electronic devices

Abstract: The past four decades have witnessed the dynamism of polymer semiconductors in organic electronics, from incipient polyacetylene to current donor−acceptor polymers. In order to further promote the development of organic...

Cited by 6 publications

References 182 publications

Effect of Controlling Thiophene Rings on D-A Polymer Photocatalysts Accessed via Direct Arylation for Hydrogen Production

Effect of Controlling Thiophene Rings on D-A Polymer Photocatalysts Accessed via Direct Arylation for Hydrogen Production

Dynamics of memristive Liu system and its DSP implementation

Incorporation of the Benzobisthiadiazole Unit Leads to Open-Shell Conjugated Polymers with n-Type Charge Transport Properties

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