Synthesis and interfacial charge separation of the hetero-structured self-assembly of an α-terthiophene derivative covalently bonded on p-silicon

Cao, Changsheng; Cao, Yaán; Song, Wenbo; Zhang, Yahong; Chai, Xiangdong; Li, Tiejin

doi:10.1016/s1010-6030(99)00114-8

Cited by 4 publications

(2 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A pyrrole derivative was first covalently anchored to SiO 2 /Si via a silanization reaction, and the bound monomer rings were further used as nucleation sites for the electrochemical growth of a polypyrrole film. Such a procedure was then extended to the deposition of other conducting polymers, such as polythiophene − and polyaniline, − onto monomer-modified oxidized silicon surfaces. Due to the presence of a covalent linkage, the organic polymer films were found to be strongly adherent to the electrode surface and much more adherent than conducting polymer films directly deposited on the semiconductor surface without an organic link. , Another advantage of the method is that the coverage of polymer and thus its thickness could be finely controlled from the electrical charge consumed during the electropolymerization reaction.…”

Section: Attachment Of Electrochemically Polymerizable Centersmentioning

confidence: 99%

Functionalization of Oxide-Free Silicon Surfaces with Redox-Active Assemblies

2016

View full text Add to dashboard Cite

This review provides a comprehensive survey of the derivatization of hydrogen-terminated, oxide-free silicon surfaces with electroactive assemblies (from molecules to polymers) attached through strong interactions (covalent, electrostatic, and chimisorption). Provided that surface modification procedures are thoroughly optimized, such an approach has appeared as a promising strategy toward high-quality functional interfaces exhibiting excellent chemical and electrochemical stabilities. The attachment of electroactive molecules exhibiting either two stable redox states (e.g., ferrocene and quinones) or more than two stable redox states (e.g., metalloporphyrins, polyoxometalates, and C60) is more particularly discussed. Attention is also paid to the immobilization of electrochemically polymerizable centers. Globally, these functional interfaces have been demonstrated to show great promise for the molecular charge storage and information processing or the elaboration of the electrochemically switchable devices. Besides, there are also some relevant examples dealing with their activity for other fields of interest, such as sensing and electrochemical catalysis.

show abstract

Section: Attachment Of Electrochemically Polymerizable Centersmentioning

confidence: 99%

Functionalization of Oxide-Free Silicon Surfaces with Redox-Active Assemblies

2016

View full text Add to dashboard Cite

show abstract

“…Generally, the lack of adhesion is a major problem associated with the deposition of conductive polymer on solid surface. To improve the adhesion of conductive polymers on polymer substrates, chemical modification of polymer surfaces prior to deposition has also been reported. − On the other hand, carboxylized thiophene trimer has been successfully assemblied on silicon wafers by means of alkylaminosilane coupling agent . Covalent bonding involving chemical reactions between the conductive polymer layer and the surface molecules of the substrate appears to be an attractive approach.…”

Section: Introductionmentioning

confidence: 99%

Consecutive Graft Copolymerization of Glycidyl Methacrylate and Aniline on Poly(Tetrafluoroethylene) Films

et al. 2000

View full text Add to dashboard Cite

Chemical modification of Ar plasma-pretreated poly(tetrafluoroethylene) (PTFE) film by UV-induced graft copolymerization with glycidyl methacrylate (GMA), followed by oxidative graft copolymerization of aniline and reactive immobilization of polyaniline (PANI) chains have been carried out to render the PTFE surface conductive. The surface compositions and microstructures of the graft-copolymerized PTFE films were studied by X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM), respectively. The PANI chains grafted onto PTFE film surface were similar to the PANI homopolymer. The surface resistance of the aniline graft-copolymerized PTFE film could be reduced to the order of about 10 4 Ω/sq, compared to the order of 10 16 Ω/sq for the pristine PTFE film. Cohesive failure occurred inside the bulk of PTFE film when an epoxy adhesive was applied to peel off the grafted PANI layer from the GMA graft-copolymerized PTFE substrate. The strong adhesion arose from the fact that the PANI chains were covalently bonded onto the GMA graft-copolymeried PTFE film through the curing of epoxide groups of the grafted GMA polymer by the amine groups of the aniline molecules during oxidative graft copolymerization and the amine groups of PANI after the oxidative polymerization of aniline.

show abstract

Monomolecular-layer assembly of oligothiophene on glass wafer surface and its fluorescence sensitization by formaldehyde vapor

Liu

Yang

et al. 2009

Journal of Photochemistry and Photobiology A: Chemistry

View full text Add to dashboard Cite

Synthesis and interfacial charge separation of the hetero-structured self-assembly of an α-terthiophene derivative covalently bonded on p-silicon

Cited by 4 publications

References 25 publications

Functionalization of Oxide-Free Silicon Surfaces with Redox-Active Assemblies

Functionalization of Oxide-Free Silicon Surfaces with Redox-Active Assemblies

Consecutive Graft Copolymerization of Glycidyl Methacrylate and Aniline on Poly(Tetrafluoroethylene) Films

Monomolecular-layer assembly of oligothiophene on glass wafer surface and its fluorescence sensitization by formaldehyde vapor

Contact Info

Product

Resources

About