Enhanced absorption spectra of conducting polymers co-polymerised from thiophene derivatives

Kolodziejczyk, Bartlomiej; Mayevsky, David; Winther‐Jensen, Bjorn

doi:10.1039/c3ra23120h

Cited by 23 publications

(24 citation statements)

References 24 publications

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“…Since then, it has been employed as oxidant for the synthesis of high‐quality PEDOT films with different fabrication techniques and for various electronic applications . Moreover, Kolodziejczyk et al have used FeTos in the vapor‐phase polymerization of PT . For a polymerization of PT from solution, it has not been used by other groups so far.…”

Section: Resultsmentioning

confidence: 99%

“…[18][19][20][21] Moreover, Kolodziejczyk et al have used FeTos in the vapor-phase polymerization of PT. [22,23] For a polymerization of PT from solution, it has not been used by other groups so far. Starting from the broad knowledge of in situ PEDOT polymerization processes, we identified alcoholic solvents as ideal solvents for the metastable reaction mixtures.…”

Section: Resultsmentioning

confidence: 99%

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Solution‐Processed, Insoluble Thin Films through In Situ Chemical Polymerization of Semiconducting Native Polythiophene

Lebert

Kratzer

Herzig

2020

Physica Status Solidi (a)

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The use of multilayer, solution‐processed organic thin film devices can benefit strongly from the controlled deposition of insoluble thin films. Here, a solution‐based in situ polymerization technique for semiconducting polythiophene thin films based on nonchlorinated solvents forming a range of large‐scale structured or homogeneous, insoluble thin films is systematically developed. The high‐quality nature of the resulting polythiophene thin films is demonstrated by successfully implementing the films in the active layer of bilayer heterojunction solar cells. It is possible to transfer this protocol to large‐scale processing without additional changes to the material system.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Solution‐Processed, Insoluble Thin Films through In Situ Chemical Polymerization of Semiconducting Native Polythiophene

Lebert

Kratzer

Herzig

2020

Physica Status Solidi (a)

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“…The VPP process is amenable to any monomer that is able to sublime or evaporate without suffering degradation of its monomeric unit. To validate the process two monomers, namely bithiophene and EDOT, were initially chosen as their ability to form individual stable thin films had already been verified in previous studies . Importantly, each resulting polymer possessed starkly different colors for easy visual confirmation.…”

Section: Resultsmentioning

confidence: 99%

Diffuse color patterning using blended electrochromic polymers for proof‐of‐concept adaptive camouflage plaques

Brooke

Fabretto

Pering

et al. 2015

J of Applied Polymer Sci

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A study using three different pairs of electrochromic polymers (ECPs) synthesized onto plaques by means of a modified vapor phase polymerization (VPP) technique is presented. Restriction of the respective polymerization times, allowed both faster and slower polymerizing monomers to be controlled, and produced blended plaques with visually diffuse interfaces. The ECPs within the blended plaques retain their individual electrochromic behavior and when encapsulated into an electrochromic device, show outstanding optical switching performance with little degradation evident over 10,000 cycles, coupled with a switching time of the order of 1 second. Blends also allow multiple diffuse color changes within an electrochromic device, due to the difference in oxidation potentials of the individual ECPs, making them candidates for adaptive camouflage use.

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“…For applications of thiophene derivatives in conducting polymers and biology, see: Kolodziejczyk et al (2013); Mishra et al (2011). For the synthesis of related compounds, see: Alkskas et al (2013).…”

Section: Related Literaturementioning

confidence: 99%

“…The incorporation of rigid spacers into the thiophene backbone is anticipated to offer several distinct advantages. A polymer can be extended to afford a more planar conformation through diminished steric effects so that a maximum degree of delocalization of the π electrons is achieved (Kolodziejczyk et al, 2013).…”

Section: S1 Commentmentioning

confidence: 99%

(2E,7E)-2,7-Bis[(thiophen-2-yl)methylidene]cycloheptanone

et al. 2014

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Key indicators: single-crystal X-ray study; T = 296 K; mean (C-C) = 0.004 Å; R factor = 0.049; wR factor = 0.162; data-to-parameter ratio = 14.1.The whole molecule of the title compound, C 17 H 16 OS 2 , is generated by two-fold rotational symmetry. The carbonyl C and O atoms of the cycloheptanone ring lie on the twofold rotation axis which bisects the opposite -CH 2 -CH 2 -bond of the ring. The molecule exists in an E,E conformation with respect to the C C double bond. The cycloheptanone ring exhibits a twisted chair conformation and its mean plane makes a dihedral angle of 50.12 (19) with the planes of the thiophene rings. The two S atoms are in an anti arrangement with respect the carbonyl O atom and the dihedral angle between the two thiophene ring planes is 69.38 (7). In the molecule, there are two intramolecular C-HÁ Á ÁS hydrogen bond, forming S(6) ring motifs. In the crystal, inversion dimers are generated via pairs of C-HÁ Á ÁO hydrogen bonds. These dimers are interconnected by another interaction of the same kind with a neighbouring molecule, forming a molecular chain along the c-axis direction. Related literature

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Enhanced absorption spectra of conducting polymers co-polymerised from thiophene derivatives

Cited by 23 publications

References 24 publications

Solution‐Processed, Insoluble Thin Films through In Situ Chemical Polymerization of Semiconducting Native Polythiophene

Solution‐Processed, Insoluble Thin Films through In Situ Chemical Polymerization of Semiconducting Native Polythiophene

Diffuse color patterning using blended electrochromic polymers for proof‐of‐concept adaptive camouflage plaques

(2E,7E)-2,7-Bis[(thiophen-2-yl)methylidene]cycloheptanone

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