Conformational locking for band gap control in 3,4-propylenedioxythiophene based electrochromic polymers

Walczak, Ryan M.; Cowart, John S.; Abboud, Khalil A.; Reynolds, John R.

doi:10.1039/b517819c

Cited by 21 publications

(23 citation statements)

References 24 publications

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“…[2][3][4] Furthermore, the polymers can be applied/processed/synthesized in a variety of different ways further increasing their utility. [5,6] By way of example, synthesis techniques such as in situ electro-polymerization, [7] vapor-phase polymerization (VPP), [8] or wet-chemical synthesis [9] are all commonly used.…”

Section: Introductionmentioning

confidence: 99%

Measurement Protocols for Reporting PEDOT Thin Film Conductivity and Optical Transmission: A Critical Survey

Fabretto

Zuber

Jariego-Moncunill

et al. 2011

Macro Chemistry & Physics

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PEDOT is one of the most frequently studied conducting polymers in literature but values for optical transmission and electrical conductivity vary greatly. Therefore measurement protocols are examined and insights are suggested into why the protocols themselves may lead to differences. Reported PEDOT conductivity is the result of contact and non‐contact film thickness and four‐point probe measurements. The soft nature of PEDOT implies that any contact method must be executed with extreme care as values of conductivity ranging from 780 to 2 775 S · cm−1 can be obtained. Similarly, variations in the optical minimum, maximum, and transmission range are found based on different switching voltage protocols. The results present here highlight the need for explicitly stating the measurement protocol used.magnified image

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Section: Introductionmentioning

confidence: 99%

Measurement Protocols for Reporting PEDOT Thin Film Conductivity and Optical Transmission: A Critical Survey

Fabretto

Zuber

Jariego-Moncunill

et al. 2011

Macro Chemistry & Physics

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“…Even though low-cost and low waste approaches to fabricate flexible ECDs are still yet to be obtained, these types of devices are considered to be the next generation of electronics. Moreover, bi-functional monomers with two thiophene active groups can impact properties such as color [ 15 ], conductivity, ion selectivity, and mechanical properties [ 16 , 17 , 18 ]. In this line, it has been reported the synthesis of the bis-malonyl EDOT that can be covalently attached to C 60 by cyclopropanation reaction and electrochemically deposited on an electrode, to produce novel ambipolar systems with new properties [ 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

2D and 3D Immobilization of Carbon Nanomaterials into PEDOT via Electropolymerization of a Functional Bis-EDOT Monomer

et al. 2021

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Carbon nanomaterials (CNMs) and conjugated polymers (CPs) are actively investigated in applications such as optics, catalysis, solar cells, and tissue engineering. Generally, CNMs are implemented in devices where the relationship between the active elements and the micro and nanostructure has a crucial role. However, they present some limitations related to solubility, processibility and release or degradability that affect their manufacturing. CPs, such as poly(3,4-ethylenedioxythiophene) (PEDOT) or derivatives can hide this limitation by electrodeposition onto an electrode. In this work we have explored two different CNMs immobilization methods in 2D and 3D structures. First, CNM/CP hybrid 2D films with enhanced electrochemical properties have been developed using bis-malonyl PEDOT and fullerene C60. The resulting 2D films nanoparticulate present novel electrochromic properties. Secondly, 3D porous self-standing scaffolds were prepared, containing carbon nanotubes and PEDOT by using the same bis-EDOT co-monomer, which show porosity and topography dependence on the composition. This article shows the validity of electropolymerization to obtain 2D and 3D materials including different carbon nanomaterials and conductive polymers.

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“…EDOT is a popular choice as a comonomer since it produces a low band gap polymer with high stability and good conductivity [22]. EDOT and its derivatives can give rise to non-covalent intramolecular interactions with adjacent thiophenic units and thus, induce self-rigidification of the conjugated system in which it is incorporated [23,24]. The resultant copolymer was characterized via cyclic voltammetry, FTIR and conductivity measurements.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and optoelectrochemical properties of poly(1,6-bis(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl)hexane) and its copolymer with EDOT

Şahmetlioğlu

Toppare

2008

Journal of Electroanalytical Chemistry

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Conformational locking for band gap control in 3,4-propylenedioxythiophene based electrochromic polymers

Abstract: We report a tethered poly(3,4-propylenedioxythiophene) derivative with a built-in polymer conformation restriction which locks the conjugated chain at a specific dihedral angle, thus providing a handle in which to tune the optical and electronic properties of the material.

Cited by 21 publications

References 24 publications

Measurement Protocols for Reporting PEDOT Thin Film Conductivity and Optical Transmission: A Critical Survey

Measurement Protocols for Reporting PEDOT Thin Film Conductivity and Optical Transmission: A Critical Survey

2D and 3D Immobilization of Carbon Nanomaterials into PEDOT via Electropolymerization of a Functional Bis-EDOT Monomer

Synthesis, characterization and optoelectrochemical properties of poly(1,6-bis(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl)hexane) and its copolymer with EDOT

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