Flexible, stretchable, and patchable organic devices integrated on freestanding polymeric substrates

Kim, Ju‐Hyung; Han, Moon Jong; Seo, Soonmin

doi:10.1002/polb.23662

Cited by 43 publications

(53 citation statements)

References 38 publications

(59 reference statements)

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“…[16] Liu group peeled pentacene OFETs from glass substrates via a water-floatation delamination process. [32][33][34] Furthermore, it is compatible with most of the conventional fabrication processes introduced over the past decade. [31] This approach is highly advantageous in the fabrication of bendable electronics because the device components are actually subjected to an extremely low tensile/compressive strain (ε < 1%) even under a small bending radius.…”

Section: Introductionmentioning

confidence: 96%

Omnidirectional Strain‐Independent Organic Transistors Integrated onto an Elastomer Template with a Spontaneously Formed Fingerprint‐Mimicking Microtopography

Choi

Baek

et al. 2019

Adv Elect Materials

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Here, a stretchable organic field‐effect transistor (OFET) that exhibits constant electrical performance irrespective of the strain direction is demonstrated. The device is integrated onto an elastomer template with randomly oriented wrinkles on its surface; these wrinkles are spontaneously formed because of the differences in the thermal–mechanical properties of the plastic layer and the underlying elastomer. To achieve this microtopography, a relatively hard polymer, Parylene C, is ad‐deposited onto an elastomer blended with polydimethylsiloxane and Ecoflex, resulting in PD‐flex. Consequently, this microtopography offers stable device operations of a dinaphtho[2,3‐b:2′,3′‐f ]thieno[3,2‐b]thiophene OFET array under 5% elongation irrespective of strain direction. Furthermore, the electrical performance is highly stable during 10 000 cycles of uniaxial strain, as verified by negligible modulation of the device's field‐effect mobility, threshold voltage, and drain‐current maximum. This approach allows nonstretchable device components to be relevant to stretchable electronics. More importantly, it is highly compatible to device alignment and provides stability under various kinds of mechanical deformations.

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Section: Introductionmentioning

confidence: 96%

Omnidirectional Strain‐Independent Organic Transistors Integrated onto an Elastomer Template with a Spontaneously Formed Fingerprint‐Mimicking Microtopography

Choi

Baek

et al. 2019

Adv Elect Materials

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“…Also, a similar design of reversely compliant electronic mesh structures relying on free standing plastic foil without the use of elastomeric materials has recently been demonstrated. 10 The potential of this technology for stretchable magnetic sensorics is still to be explored.…”

Section: Further Development Directionsmentioning

confidence: 99%

“…Organic electronic materials have been extensively used to create shapeable systems with various functionalities [8][9][10] even featuring active matrix addressing capabilities. 11,12 Compliant designs of inorganic semiconductor 5,13,14,192 and metal-based [15][16][17][18] electronics, however, combine the advantages of being soft with the high speed and low power consumption capabilities of conventional semiconductor-based electronics.…”

mentioning

confidence: 99%

Shapeable magnetoelectronics

Makarov

Melzer

Karnaushenko

et al. 2016

Applied Physics Reviews

153

111

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“…Organic semiconductors are potentially light, flexible and transparent, allowing for the design of new futuristic devices [2][3][4]. Organic materials are also environmentally friendly and low cost to produce since they can be obtained by spin coating, ink-jet printing, lithography, etc.…”

Section: Populärvetenskaplig Sammanfattningmentioning

confidence: 99%

Modelling Charge Transport for Organic Solar Cells within Marcus Theory

Volpi¹

2017

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The cover is designed by Riccardo Volpi and licensed under the terms of the GNU Free Documentation License. The image of the trajectory of the CT state splitting is created by Sathish Kottravel of the visualization center in Norrköping. As can be noticed, the theory is always hidden in the back. Printed by LiU-Tryck 2017 To the present moment... AbstractWith the technological advancement of modern society, electronic devices are getting progressively more integrated in our everyday lives. Their continuously growing presence is generating numerous concerns about costs, e ciency and the environmental impact of the electronic waste. In this context, organic electronics is finding its way through the market, allowing for potentially low-cost, light, flexible, transparent and environmentally friendly electronics. Despite the numerous successes of organic electronics, the functioning of several categories of organic devices still represents a technological challenge, due to problems like low e ciencies and stabilities (degradation over time). Organic devices are composed by one or more organic materials depending on the particular application. The conformation and electronic structure of the organic molecules as well as their supramolecular arrangement in the single phase or at the interface are known to strongly a↵ect the mobility and/or the e ciency of the device. While there is consensus on the fundamental physics of organic devices, we still lack a detailed comprehensive theory able to fully explain experimental data. In this thesis we focus on trying to expand our knowledge of charge transport in organic materials through theoretical modelling and simulation of organic electronic devices. While the methodology developed is generally valid for any organic device, we will particularly focus on the case represented by organic photovoltaics.The morphology of the system is obtained by molecular dynamics simulations. Marcus theory is used to calculate the hopping rate of the charge carriers and subsequently study the possibility of free charge carriers production in an organic solar cell. The theory is then compared both with Kinetic Monte Carlo simulations and with experiments to identify the main pitfalls of the actual theory and ways to improve it. The Marcus rate between two molecules depends on the molecular orbital energies, the transfer integral between the two molecules and the reorganization energy. The orbital energies and the transfer integrals between two neighbouring molecules are obtained through quantum mechanical calculations in vacuum. Electrostatic e↵ects of the environment are included through atomic v vi charges and atomic polarizabilities, producing a correction both to the orbital energy and to the reorganization energy. We have studied several systems in the single phase (polyphenylene vinylene, C 60 , PC 61 BM, triindoles) and at the interface between two organic materials (anthracene/C 60 , TQ1/PC 71 BM). We show how a combination of di↵erent methodologies can be used to obtain a realistic ...

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Flexible, stretchable, and patchable organic devices integrated on freestanding polymeric substrates

Cited by 43 publications

References 38 publications

Omnidirectional Strain‐Independent Organic Transistors Integrated onto an Elastomer Template with a Spontaneously Formed Fingerprint‐Mimicking Microtopography

Omnidirectional Strain‐Independent Organic Transistors Integrated onto an Elastomer Template with a Spontaneously Formed Fingerprint‐Mimicking Microtopography

Shapeable magnetoelectronics

Modelling Charge Transport for Organic Solar Cells within Marcus Theory

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