Inkjet Printing of PEDOT:PSS Based Conductive Patterns for 3D Forming Applications

Basak, Indranil; Nowicki, Gudrun; Ruttens, Bart; Desta, Derese; Prooth, Jeroen; Jose, Manoj; Nagels, Steven; Boyen, Hans‐Gerd; D’Haen, Jan; Buntinx, Mieke; Deferme, Wim

doi:10.3390/polym12122915

Cited by 33 publications

(27 citation statements)

References 55 publications

(54 reference statements)

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“…30,33 In order to achieve high resolution patterning of the solution-based stretchable conducting polymer, printing methods such as inkjet printing can be used. [37][38][39][40][41] However, one challenge is that most of the soft polymer additives with high molecular weights are often too viscous. In order to make the ink suitable for inkjet printing, the viscosity needs to be lowered and its surface tension needs to be adjusted for optimal wetting on elastomer substrates.…”

Section: Introductionmentioning

confidence: 99%

An Inkjet-Printed PEDOT:PSS-Based Stretchable Conductor for Wearable Health Monitoring Device Applications

Zhao

Wan

et al. 2021

ACS Appl. Mater. Interfaces

117

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Stretchable conductor is one of the key components in soft electronics that allows seamless integration of electronic devices and sensors on elastic substrates. Its unique advantages of mechanical flexibility and stretchability have enabled a variety of wearable bioelectronic devices that can conformably adapt to curved skin surface for long-term health monitoring applications. Here, we report a poly(3,4ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS)-based stretchable polymer blend that can be patterned using an inkjet printing process while exhibiting low sheet resistance and accommodating large mechanical deformations. We have systematically studied the effect of various types of polar solvent additives that can help induce phase separation of PEDOT and PSS grains and changes the conformation of PEDOT chain thereby improving the electrical property of the film by facilitating charge hopping along the percolating PEDOT network. The optimal ink formulation is achieved by adding 5 wt% of ethylene glycol into pristine PEDOT:PSS aqueous solution which results in a sheet resistance of as low as 58 Ω/ .Elasticity can also be achieved by blending the above solution with soft polymer poly(ethylene oxide)

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Section: Introductionmentioning

confidence: 99%

An Inkjet-Printed PEDOT:PSS-Based Stretchable Conductor for Wearable Health Monitoring Device Applications

Zhao

Wan

et al. 2021

ACS Appl. Mater. Interfaces

117

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“…The hard and soft polymeric segments of TPU are responsible for many of their interesting mechanical and physical properties. Moreover, the excellent printability of PEDOT:PSS on TPU and its structural integrity has been demonstrated in several stretchable applications [67,68]. Medical researchers recognized the signi cance of the modest distracting force on the wound strength from the experimental studies on multiple animals and they emphasized the necessity to quantify the stress on it [51].…”

Section: Sensor Testing On Mice Woundsmentioning

confidence: 99%

Stretchable Printed Device for the Simultaneous Sensing of Temperature and Strain Validated in a Mouse Wound Healing Model

Deferme

Jose

Bronckaers

et al. 2022

Preprint

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Temperature and strain are two vital parameters that play a significant role in wound diagnosis and healing. As periodic temperature measurements with a custom thermometer or strain measurements with conventional metallic gauges became less feasible for the modern competent health monitoring, individual temperature and strain measurement modalities incorporated into wearables and patches were developed. The proposed research in the article shows the development of a single sensor solution which can simultaneously measure both the above mentioned parameters. This work integrates a thermoelectric principle based temperature measurement approach into wearables, ensuring flexibility and bendability properties without affecting its thermo-generated voltage. The modified thermoelectric material helped to achieve stretchability of the sensor, thanks to its superior mechano-transduction properties. Moreover, the stretch-induced resistance changes become an additional marker for strain measurements so that both the parameters can be measured with the same sensor. Due to the independent measurement parameters (open circuit voltage and sensor resistance ), the sensing model is greatly attractive for measurements without cross-sensitivity. The highly resilient temperature and strain sensor show excellent linearity, repeatability and good sensitivity. Besides, due to the compatibility of the fabrication scheme to low temperature processing of the flexible materials and to mass volume production, printed fabrication methodologies were adopted to realize the sensor. This promises low cost production and a disposable nature (single use) of the sensor patch. The temperature-strain dual parameter semi-transparent sensor has been further tested on mice wounds in vivo. The preliminary experiments on mice wounds offer prospects for developing smart, i.e. sensorized, wound dressings for clinical applications.

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“…However, the success of final executions on the textiles is limited by the compatibility of ink and intrinsic properties of a conductive material such as conductivity, durability, susceptibility of washing, and humidity. Until now, various kinds of conductive inks with different fillers such as metal nanoparticles [ 8 , 9 , 10 , 11 ], polymers [ 12 ], carbon nanotubes [ 13 ], and/or organic metal complexes [ 14 ] have been developed for forming conductive patterns. In the aim of scalable processes for printed electronics, inkjet and screen printing techniques tuning the liquid phase inks with high efficiency, stability, low cost, and zero waste materials have been employed [ 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Screen Printing Carbon Nanotubes Textiles Antennas for Smart Wearables

Ibanez‐Labiano

Arslan

Yenigun

et al. 2021

Sensors

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Electronic textiles have become a dynamic research field in recent decades, attracting attention to smart wearables to develop and integrate electronic devices onto clothing. Combining traditional screen-printing techniques with novel nanocarbon-based inks offers seamless integration of flexible and conformal antenna patterns onto fabric substrates with a minimum weight penalty and haptic disruption. In this study, two different fabric-based antenna designs called PICA and LOOP were fabricated through a scalable screen-printing process by tuning the conductive ink formulations accompanied by cellulose nanocrystals. The printing process was controlled and monitored by revealing the relationship between the textiles’ nature and conducting nano-ink. The fabric prototypes were tested in dynamic environments mimicking complex real-life situations, such as being in proximity to a human body, and being affected by wrinkling, bending, and fabric care such as washing or ironing. Both computational and experimental on-and-off-body antenna gain results acknowledged the potential of tunable material systems complimenting traditional printing techniques for smart sensing technology as a plausible pathway for future wearables.

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Inkjet Printing of PEDOT:PSS Based Conductive Patterns for 3D Forming Applications

Cited by 33 publications

References 55 publications

An Inkjet-Printed PEDOT:PSS-Based Stretchable Conductor for Wearable Health Monitoring Device Applications

An Inkjet-Printed PEDOT:PSS-Based Stretchable Conductor for Wearable Health Monitoring Device Applications

Stretchable Printed Device for the Simultaneous Sensing of Temperature and Strain Validated in a Mouse Wound Healing Model

Screen Printing Carbon Nanotubes Textiles Antennas for Smart Wearables

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