Poly(2,5‐thienylene vinylene) in Nano Shapes by CVD Polymerization

Lee, Ki Ryong; Yu, Yeonsil; Joo, Sung Hoon; Lee, Chun Young; Choi, Dong Hoon; Joo, Jin; Park, Young Sup; Jin, Jung Il

doi:10.1002/marc.200700004

Cited by 6 publications

(1 citation statement)

References 25 publications

(16 reference statements)

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“…TEMs demonstrating a) tunable wall thickness for CVD poly(acrylonitrile) nanotubes and b) the ultrathin (∼5 nm) walls of insoluble, infusible CVD poly(2,5‐thienylene vinylene) AAO‐templated nanotubes. Reproduced with permission from a) 485, b) 487. a) Copyright 2006 American Chemical Society.…”

Section: Example Applicationsmentioning

confidence: 99%

Chemical Vapor Deposition of Conformal, Functional, and Responsive Polymer Films

et al. 2010

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Chemical vapor deposition (CVD) polymerization utilizes the delivery of vapor-phase monomers to form chemically well-defined polymeric films directly on the surface of a substrate. CVD polymers are desirable as conformal surface modification layers exhibiting strong retention of organic functional groups, and, in some cases, are responsive to external stimuli. Traditional wet-chemical chain- and step-growth mechanisms guide the development of new heterogeneous CVD polymerization techniques. Commonality with inorganic CVD methods facilitates the fabrication of hybrid devices. CVD polymers bridge microfabrication technology with chemical, biological, and nanoparticle systems and assembly. Robust interfaces can be achieved through covalent grafting enabling high-resolution (60 nm) patterning, even on flexible substrates. Utilizing only low-energy input to drive selective chemistry, modest vacuum, and room-temperature substrates, CVD polymerization is compatible with thermally sensitive substrates, such as paper, textiles, and plastics. CVD methods are particularly valuable for insoluble and infusible films, including fluoropolymers, electrically conductive polymers, and controllably crosslinked networks and for the potential to reduce environmental, health, and safety impacts associated with solvents. Quantitative models aid the development of large-area and roll-to-roll CVD polymer reactors. Relevant background, fundamental principles, and selected applications are reviewed.

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Section: Example Applicationsmentioning

confidence: 99%

Chemical Vapor Deposition of Conformal, Functional, and Responsive Polymer Films

et al. 2010

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Thin Films of Insoluble Poly(Oligothienylene vinylenes) Prepared by Chemical Vapor Deposition Polymerization

Joo

Lee

Park

et al. 2007

Adv Funct Materials

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A series of poly(oligothienylene vinylenes) (PTmVs, m = 2–4) with a varying number of consecutively bound thienylene rings are successfully prepared in thin films by chemical vapor deposition polymerization (CVDP) using the corresponding bis(halomethyl)thiophenes as starting materials. The chemical and electronic structures are studied spectroscopically and also by cyclic voltammetry. Top‐gate field‐effect transistors are fabricated by two consecutive CVDP cycles of PTmV and poly(p‐xylylene) followed by the deposition of a Au gate electrode. In the case of a PT3V active layer, a field‐effect mobility value of 0.5 × 10–4 cm2 V–1 s–1 is obtained.

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Conjugated Polymer Patterning through Photooxidative Backbone Cleavage

Johnson

Haworth

Finnegan

et al. 2014

Macromol. Rapid Commun.

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Photolithographic patterning of a xanthate precursor to poly(3,4-diphenyl-2,5-thienylene vinylene) is described. Unlike xanthate precursors to poly(p-phenylene vinylene), the thienylene vinylene analogue patterns as a positive tone resist. Characterization of irradiated films reveals photooxidative cleavage of the vinylene linker decreases the molecular weight of the polymer (increasing the solubility of the UV-exposed areas). As a result of the mechanism, the developed pattern sees no UV light exposure, which is a significant advantage compared with negative-tone-conjugated polymer resists. Single micron resolution of a low-bandgap polymer is achieved in an efficient and scalable process.

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Poly(2,5‐thienylene vinylene) in Nano Shapes by CVD Polymerization

Cited by 6 publications

References 25 publications

Chemical Vapor Deposition of Conformal, Functional, and Responsive Polymer Films

Chemical Vapor Deposition of Conformal, Functional, and Responsive Polymer Films

Thin Films of Insoluble Poly(Oligothienylene vinylenes) Prepared by Chemical Vapor Deposition Polymerization

Conjugated Polymer Patterning through Photooxidative Backbone Cleavage

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