Preparation of Conjugated Polymers Inside Assembled Solid‐State Devices

Invernale, Michael A.; Ding, Yujie; Mamangun, Donna Marie D.; Yavuz, Mustafa Selman; Sotzing, Gregory A.

doi:10.1002/adma.200902975

Cited by 55 publications

(34 citation statements)

References 36 publications

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“…Conducting polymers, such as those used in organic electronic devices, have many favorable properties, such as a low‐temperature synthesis process, inherent compatibility with plastic substrates, and scalable and low‐cost manufacturing, which make them suitable for wearable gas‐sensing devices . However, the limited optical transparency and environmental instability of nanostructured conducting polymer films are major drawbacks of these compounds.…”

Section: Introductionmentioning

confidence: 99%

Flexible Transparent Films Based on Nanocomposite Networks of Polyaniline and Carbon Nanotubes for High‐Performance Gas Sensing

Wan

Wen

Sun

et al. 2015

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234

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A flexible, transparent, chemical gas sensor is assembled from a transparent conducting film of carbon nanotube (CNT) networks that are coated with hierarchically nanostructured polyaniline (PANI) nanorods. The nanocomposite film is synthesized by in-situ, chemical oxidative polymerization of aniline in a functional multiwalled CNT (FMWCNT) suspension and is simultaneously deposited onto a flexible polyethylene terephthalate (PET) substrate. An as-prepared flexible transparent chemical gas sensor exhibits excellent transparency of 85.0% at 550 nm using the PANI/FMWCNT nanocomposite film prepared over a reaction time of 8 h. The sensor also shows good flexibility, without any obvious decrease in performance after 500 bending/extending cycles, demonstrating high-performance, portable gas sensing at room temperature. This superior performance could be attributed to the improved electron transport and collection due to the CNTs, resulting in reliable and efficient sensing, as well as the high surface-to-volume ratio of the hierarchically nanostructured composites. The excellent transparency, improved sensing performance, and superior flexibility of the device, may enable the integration of this simple, low-cost, gas sensor into handheld flexible transparent electronic circuitry and optoelectronic devices.

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Section: Introductionmentioning

confidence: 99%

Flexible Transparent Films Based on Nanocomposite Networks of Polyaniline and Carbon Nanotubes for High‐Performance Gas Sensing

Wan

Wen

Sun

et al. 2015

Small

234

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“…The electrolyte material must be physically contained within the device, and EC materials are prone to oxidation from the air and sensitive to moisture and other environmental contaminants . The assembly process has been simplified with the development of in situ polymerisation . With this method, all of the materials are combined, the device is sealed, and the EC monomer is electropolymerised within the ECD in one step.…”

Section: Electrochromic Device History and Fundamentalsmentioning

confidence: 99%

“…The maximum conductivity achieved by multiple dipping cycles in PEDOT:PSS was 1.71 S/cm. The precursor polymer was converted at +1.1 V in an electrolyte bath to yield poly(EDOT– b –thiophene– b –EDOT), an EC that changed from blue in the oxidised state to red in the reduced state . To ensure device continuity during deformation events, a stretchable polyurethane‐based electrolyte was utilised in later experiments.…”

Section: Electrochromic Colour‐changing Textiles and Fibresmentioning

confidence: 99%

A review of organic electrochromic fabric devices

Kline

Lorenzini

Sotzing

2014

Coloration Technology

104

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Electrochromic fabric devices represent a further extension to the plethora of available literature on conductive fabrics. This article contains a brief overview of electrochromic devices, electrochromic polymers, conductive materials, conductive fabrics, and electrochromic fabric devices. A tabulated list of the perceived colour of a number of electrochromic polymers that is contained herein is designed to serve as an aide to colour mixing studies. The challenges of optimisation and commercialisatiion of electrochromic fabric devices and their mitigating factors are conjectured, along with some future potential applications for electrochromic fabric device technologies.

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“…Our work has shown that high conductivities of the underlying conductive fabric are not necessary for electrochromic function and we have also presented unique electrochromic device (ECD) architectures. Further, spandex electrodes prepared by this method having conductivity as low as 0.1 S/cm were shown to be able to electrochemically convert precursor polymers to conjugated, electrochromic materials [12–18]. This opens up the potential for the use of a variety of other conductors in the preparation of similar systems [19–24].…”

Section: Introductionmentioning

confidence: 99%

The effects of coloured base fabric on electrochromic textile

Invernale

Ding

Sotzing

2011

Coloration Technology

Self Cite

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The colour of electrochromic fabric, and its colour transitions, was explored on the basis of variations in underlying fabric colour. A complete understanding of this phenomenon is essential for the fabric’s use in full‐colour wearable displays or other applications. Previous work in this area utilised only white‐coloured starting materials. Herein, a large colour swathe of fabrics was chosen. They were loaded with the commercially available conducting polymer, PEDOT‐PSS, and were coated with an electrochromic polymer. These all‐organic substrates were then switched between their two coloured states via reversible oxidation and reduction. At every stage, coordinates in the CIE Lu′v′ colour space were measured. It was found that darker colours decrease the overall contrast of the electrochromic, with black being entirely unobservable. More vibrant colours affected the observed colour through a subtractive mixing effect, as expected, but no adverse contrast effects between the two states of the electrochromic system was observed.

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Preparation of Conjugated Polymers Inside Assembled Solid‐State Devices

Cited by 55 publications

References 36 publications

Flexible Transparent Films Based on Nanocomposite Networks of Polyaniline and Carbon Nanotubes for High‐Performance Gas Sensing

Flexible Transparent Films Based on Nanocomposite Networks of Polyaniline and Carbon Nanotubes for High‐Performance Gas Sensing

A review of organic electrochromic fabric devices

The effects of coloured base fabric on electrochromic textile

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