Mechanical Cycling Stability of Organic Thin Film Transistors on Shape Memory Polymers

Avendano-Bolivar, Adrian; Ware, Taylor H.; Arreaga-Salas, David; Simon, Dustin; Voit, Walter

doi:10.1002/adma.201203976

Cited by 31 publications

(39 citation statements)

References 24 publications

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“…Some of these concepts have the potential to become commercialized in the near term. Also on SMP applications, a notable development at the bulk device level is the use of SMPs as substrates for electronic components, leading to electronics with complex three dimensional shapes that are otherwise difficult to fabricate without using the shape memory properties [316][317][318][319]. Mechanical design is very important to achieve versatile shape morphing.…”

Section: Discussionmentioning

confidence: 99%

Recent progress in shape memory polymer: New behavior, enabling materials, and mechanistic understanding

Zhao

Xie

2015

Progress in Polymer Science

1,191

749

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Shape memory polymers (SMPs), as a class of programmable stimuliresponsive shape changing polymers, are attracting increasing attention from the standpoint of both fundamental research and technological innovations. Following a brief introduction of the conventional shape memory effect (SME), progress in new shape memory enabling mechanisms and triggering methods, variations of in shape memory forms (shape memory surfaces, hydrogels, and microparticles), new shape memory behavior (multi-SME and two-way-SME), and novel fabrication methods are reviewed. Progress in thermomechanical modeling of SMPs is also presented. Abbreviations:SCPs shape changing polymers; LCEs liquid crystalline elastomers; SMP shape memory polymer; SME shape memory effect; 2W two-way; 1W oneway; T trans transition temperature; T g glass transition temperature; T m melting temperature; T cl liquid crystal cleaning temperature; T d deformation temperature; T f shape fixing temperature; T c crystallization temperature; R f shape stability ratio; R r shape recovery ratio; T sw switching temperature; ε max maximum recoverable strain; σ max maximum recovery stress; SMC shape memory cycle; ε load strain under load; ε fixed strain; T r recovery Page 2 of 106 A c c e p t e d M a n u s c r i p t 2 temperature; ε rec recovered strain; V r strain recovery rate; T σmax temperature corresponding to σ max ; T sw,app apparent switching temperature; PCL poly(ε-caprolactone); SMPU shape memory polyurethane; EMU elemental memory unit; TME temperature memory effect; PU polyurethane; T i liquid-crystal isotropic transition temperature; T v vitrification temperature; CIE crystallization induced elongation; MIC melting induced contraction

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Section: Discussionmentioning

confidence: 99%

Recent progress in shape memory polymer: New behavior, enabling materials, and mechanistic understanding

Zhao

Xie

2015

Progress in Polymer Science

1,191

749

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“…The flexible substrates usually are plastic platforms such as PET, polyimide (PI), polyethylene naphthalate (PEN) and polycarbonate (PC). Other flexible substrates include textile [51,52], silk [53,54], paper [55][56][57][58], metalfoil [59,60], shape-memory polymer [61][62][63] and so on. Besides, weavable and fiber-like electrode [17,64]/device configurations [65][66][67][68][69], or even substrate-free free-standing configurations [70] are also demonstrated as effective ways for obtaining flexible devices.…”

Section: Flexible Device Configurationsmentioning

confidence: 99%

Thin-film organic semiconductor devices: from flexibility to ultraflexibility

Qian

Zhang

et al. 2016

Sci. China Mater.

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Flexible thin-film organic semiconductor devices have received wide attention due to favorable properties such as light-weight, flexibility, reproducible semiconductor resources, easy tuning of functional properties via molecular tailoring, and low cost large-area solution-procession. Among them, ultraflexible electronics, usually with minimum bending radius of less than 1 mm, are essential for the development of epidermal and bio-implanted electronics, wearable electronics, collapsible and portable electronics, three dimensional (3D) surface compliable electronics, and bionics. This review firstly gives a brief introduction of development from flexible to ultraflexible organic semiconductor electronics, and design of ultraflexible devices, then summarizes the recent advances in ultraflexible thin-film organic semiconductor devices, focusing on organic field effect transistors, organic light-emitting diodes, organic solar cells and organic memory devices.

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“…Shape memory materials are applied in the fields of medicine, aerospace industry, coatings, toys, optic materials, textile industry, and electronics, among others. They can also present special interesting additional attributes as self‐healing ability, for example .…”

Section: Introductionmentioning

confidence: 99%

Magnetic Remote Activation of Shape Recovery in Nanocomposites Based on Tung Oil and Styrene

Meiorin

Actis

Montoro

et al. 2018

Physica Status Solidi (a)

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The activation of unconstrained shape recovery in bio‐based polymeric nanocomposites is successfully achieved using magnetic nanoparticle heating. The materials investigated in this work present several distinct physical and chemical characteristics worth pointing out: they can be deformed and the original shape can be recovered by remotely heating the samples above their switching temperature, which is determined by their glass transition temperatures. Also, their chemical composition is largely based on biomass (the polymeric matrix contains more than 50 wt.% of raw tung oil). Magnetic heating performance is strongly affected by both the physical properties and the concentration of the nanoparticles loaded into the matrix. The concentration of nanoparticles is associated with the formation of agglomerates or clusters, which determines the dipolar interactions among the nanoparticles. The particles used in this work are able to absorb enough energy from an alternating magnetic field to heat the matrix and initiate the shape recovery. Although the sample with the highest content of magnetic solute (10 wt.%) presents the highest degree of agglomeration, it is also the sample with the best remote activation of shape recovery, according to the temperature reached under magnetothermal measurements and the time of actuation.

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Mechanical Cycling Stability of Organic Thin Film Transistors on Shape Memory Polymers

Cited by 31 publications

References 24 publications

Recent progress in shape memory polymer: New behavior, enabling materials, and mechanistic understanding

Recent progress in shape memory polymer: New behavior, enabling materials, and mechanistic understanding

Thin-film organic semiconductor devices: from flexibility to ultraflexibility

Magnetic Remote Activation of Shape Recovery in Nanocomposites Based on Tung Oil and Styrene

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