Tuning of electrochromic properties of electrogenerated polythiophenes through Ru(II) complex tethering and backbone derivatization

Guven, Nese; Sultanova, Hajar; Ozer, B.; Yucel, Baris; Çamurlu, Pınar

doi:10.1016/j.electacta.2019.135134

Cited by 17 publications

(4 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…So far, EC materials can be generally divided into organic and inorganic materials. Typically, organic EC materials such as PANI, PPy, and PEDOT, which are normally in an amorphous state, exhibit poor environmental and EC stability due to the instability of the doped state . In comparison, inorganic EC materials including NiO, V 2 O 5 , WO 3 , etc., which are normally crystalline materials, show better environmental stability. − However, their dense lattice structures with narrow spacings of <5 Å are difficult to insert and extract for ions, resulting in a long switching time and poor cycling stability.…”

Section: Introductionmentioning

confidence: 99%

“…We envisioned that emerging conductive MOFs, with retained tunable porous crystal structures and improved electronic conductivities, 27−29 are promising to achieve high electron and ion transport simultaneously in an EC process, yet it has never been explored previously. As a proof of concept demonstration, the conductive MOF Ni 3 (2,3,6,7,10,11-hexaiminotriphenylene) 2 (Ni 3 (HITP) 2 , with high conductivity and electrochemical activity) films are assembled at the liquid− air interface in this work (conductivity of ∼100 S m −1 ). The reversible EC behavior of the MOF is systematically explored and further explained as the redox of Ni nodes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Redox-Active Ni(II) Nodes Induced Electrochromism in a Two-Dimensional Conductive Metal–Organic Framework

Pan

Zhang

et al. 2022

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

Metal–organic frameworks (MOFs) are highly desired for electrochromic (EC) applications because of their designable porous structures for fast ionic transport. However, the intrinsic low electronic conductivity of traditional MOF-based EC materials leads to a slow switching speed, poor coloration efficiency, and unfavorable cyclability. Conductive MOFs, with a tunable porous crystal structure and highly improved electronic conductivity, are proposed as promising candidates to achieve synchronous high-speed transport of electrons and ions in the EC process. Here we demonstrate fast and high-coloration-efficiency EC electrodes based on interfacially assembled conductive MOF Ni3(HITP)2 films. The reversible EC behavior of Ni3(HITP)2 is systematically explored and elaborated as the redox of Ni nodes in the crystal. Finally, we demonstrate MOFs-based devices that could potentially be used in fields such as digital displays and optical modulation.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Redox-Active Ni(II) Nodes Induced Electrochromism in a Two-Dimensional Conductive Metal–Organic Framework

Pan

Zhang

et al. 2022

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

show abstract

“…There are many different electropolymerized coatings which exert their own redox activity and take part in electron transfer within the layer and on the electrode interface. Pyrrole [1], aniline [2], thiophene [3] and their derivatives [4][5][6] are the most popular precursors that are electrochemically polymerized and show electroconductive properties. The performance of electropolymerized layers depends on the monomer structure, pH, electrodeposition conditions and electrolyte content of the reaction media.…”

Section: Introductionmentioning

confidence: 99%

Impedimetric DNA Sensor Based on Electropolymerized N-Phenylaminophenothiazine and Thiacalix[4]arene Tetraacids for Doxorubicin Determination

et al. 2023

View full text Add to dashboard Cite

Electrochemical DNA sensors are highly demanded for fast and reliable determination of antitumor drugs and chemotherapy monitoring. In this work, an impedimetric DNA sensor has been developed on the base of a phenylamino derivative of phenothiazine (PhTz). A glassy carbon electrode was covered with electrodeposited product of PhTz oxidation obtained through multiple scans of the potential. The addition of thiacalix[4]arene derivatives bearing four terminal carboxylic groups in the substituents of the lower rim improved the conditions of electropolymerization and affected the performance of the electrochemical sensor depending on the configuration of the macrocyclic core and molar ratio with PhTz molecules in the reaction medium. Following that, the deposition of DNA by physical adsorption was confirmed by atomic force microscopy and electrochemical impedance spectroscopy. The redox properties of the surface layer obtained changed the electron transfer resistance in the presence of doxorubicin due to its intercalating DNA helix and influencing charge distribution on the electrode interface. This made it possible to determine 3 pM–1 nM doxorubicin in 20 min incubation (limit of detection 1.0 pM). The DNA sensor developed was tested on a bovine serum protein solution, Ringer–Locke’s solution mimicking plasma electrolytes and commercial medication (doxorubicin-LANS) and showed a satisfactory recovery rate of 90–105%. The sensor could find applications in pharmacy and medical diagnostics for the assessment of drugs able to specifically bind to DNA.

show abstract

“…Polythiophenes could be fabricated as the recognition units of biosensors by the direct polymerization of monomers or the substitution of the prepared polythiophene backbones [9]. Polythiophenes have a lot of application areas such as transistors [10], electrochromic devices [11], light-emitting devices [12], batteries [13], adsorption materials [14], sensors and biosensors [15,16]. Electrochemical sensor platforms based on such materials are widely used in the detection of biomolecules due to their long-term stability, low detection limits and wide linear ranges and reproducibility.…”

Section: Introductionmentioning

confidence: 99%

A novel lactose biosensor based on electrochemically synthesized 3,4-ethylenedioxythiophene/thiophene (EDOT/Th) copolymer

et al. 2020

View full text Add to dashboard Cite

In this study, a new lactose biosensor has been developed in which the 3,4-ethylenedioxythiophene/thiophene (EDOT/Th) copolymer is used as a transducer. The EDOT/Th copolymer was deposited on the glassy carbon electrode to be used as the working electrode. In addition to the working electrode, the three-electrode system was used in both the electrochemical synthesis and in the biosensor measurements. Lactase (β-galactosidase) that catalyzes the breakdown of lactose into monosaccharides (glucose and galactose) and galactose oxidase that catalyzes the oxidation of the resulting galactose were attached to the copolymer by a cross-linker on the modified working electrode. The response of the enzyme electrode to lactose was determined by cyclic voltammetry (CV) at +0.12 V. Enzyme electrode optimization parameters (pH, temperature, enzyme concentration, etc.) were performed. Fourier transform infrared spectroscopy, scanning electron microscopy and CV methods were used to support copolymer formation. In addition, the characteristics of the enzyme electrode prepared in this study (Km, 0.02 mM; activation energy Ea, 38 kJ/mol; linear working range, up to 1.72 mM; limit of detection, 1.9 × 10−5 M and effects of interferents [uric acid and ascorbic acid]) were determined.

show abstract

Tuning of electrochromic properties of electrogenerated polythiophenes through Ru(II) complex tethering and backbone derivatization

Cited by 17 publications

References 78 publications

Redox-Active Ni(II) Nodes Induced Electrochromism in a Two-Dimensional Conductive Metal–Organic Framework

Redox-Active Ni(II) Nodes Induced Electrochromism in a Two-Dimensional Conductive Metal–Organic Framework

Impedimetric DNA Sensor Based on Electropolymerized N-Phenylaminophenothiazine and Thiacalix[4]arene Tetraacids for Doxorubicin Determination

A novel lactose biosensor based on electrochemically synthesized 3,4-ethylenedioxythiophene/thiophene (EDOT/Th) copolymer

Contact Info

Product

Resources

About