Breathing-effect assisted transferring large-area PEDOT:PSS to PDMS substrate with robust adhesion for stable flexible pressure sensor

Tan, Ziting; Li, Hongwei; Huang, Yinan; Gong, Xue; Qi, Jiannan; Li, Jie; Chen, Xiaosong; Ji, Deyang; Lv, Weibang; Li, Liqiang; Hu, Wenping

doi:10.1016/j.compositesa.2021.106299

Cited by 38 publications

(21 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, several approaches have been developed to improve the stretchability of conducting polymers. Various efforts have been made to increase the elasticity by combining plasticizers with ionic additives [ 13 , 14 , 15 ]. These candidates improve the stretchability of conducting polymers and their wettability in aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Water-Based Highly Stretchable PEDOT:PSS/Nonionic WPU Transparent Electrode

2022

View full text Add to dashboard Cite

Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has the merits of high electrical conductivity and solution processability, and can be dispersed in water. To improve the stretchability of PEDOT:PSS-based transparent electrode films, the intrinsically conducting polymer PEDOT:PSS was blended with highly stretchable nonionic waterborne polyurethane (WPU) and coated on a thermoplastic polyurethane (TPU) film. Nonionic WPU has good compatibility with PEDOT:PSS, without affecting the acidity. WPU undergoes hydrogen bonding and coulombic attractions with PEDOT:PSS. With variation of the WPU content, differences in the electrical properties, such as the sheet resistance and mechanical stretchability, of the coated thin films were observed. The film with 2.0 wt% WPU could be stretched to 400% of the electrode surface without damage to the surface of the electrode films. The WPU and TPU films both have a polyester group, which provides good adhesion between the WPU-based transparent electrodes and the TPU substrate films. A stretchable alternating current electroluminescence (ACEL) device was constructed by using the water-based PEDOT:PSS/nonionic WPU composite as both the bottom and top transparent electrodes. The fabricated ACEL remained its initial luminance in the 500% stretched state.

show abstract

Section: Introductionmentioning

confidence: 99%

Water-Based Highly Stretchable PEDOT:PSS/Nonionic WPU Transparent Electrode

2022

View full text Add to dashboard Cite

show abstract

“…One prominent polymeric example is PEDOT:PSS. Several properties make this polymer an interesting and promising sensing material because it can be modified and specially treated to achieve high mechanical stability and electrical tunability 4 , 31 , 32 . Meanwhile, it remains user-friendly and compatible with various printing processes.…”

Section: Introductionmentioning

confidence: 99%

Printed temperature sensor array for high-resolution thermal mapping

Bücher

Huber

Eschenbaum

et al. 2022

Sci Rep

View full text Add to dashboard Cite

Fully-printed temperature sensor arrays—based on a flexible substrate and featuring a high spatial-temperature resolution—are immensely advantageous across a host of disciplines. These range from healthcare, quality and environmental monitoring to emerging technologies, such as artificial skins in soft robotics. Other noteworthy applications extend to the fields of power electronics and microelectronics, particularly thermal management for multi-core processor chips. However, the scope of temperature sensors is currently hindered by costly and complex manufacturing processes. Meanwhile, printed versions are rife with challenges pertaining to array size and sensor density. In this paper, we present a passive matrix sensor design consisting of two separate silver electrodes that sandwich one layer of sensing material, composed of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS). This results in appreciably high sensor densities of 100 sensor pixels per cm$$^2$$ 2 for spatial-temperature readings, while a small array size is maintained. Thus, a major impediment to the expansive application of these sensors is efficiently resolved. To realize fast and accurate interpretation of the sensor data, a neural network (NN) is trained and employed for temperature predictions. This successfully accounts for potential crosstalk between adjacent sensors. The spatial-temperature resolution is investigated with a specially-printed silver micro-heater structure. Ultimately, a fairly high spatial temperature prediction accuracy of 1.22 °C is attained.

show abstract

“…Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is a thin, flexible, printable material with high conductivity, robustness, processability, and biocompatibility [ 1–6 ]. These advantages enable its use in various applications in biomedical engineering, such as wearable sensing [ 7–25 ]. Medical sensors are mainly classified into three types based on their measurement type: physical, chemical, and biosensors.…”

Section: Introductionmentioning

confidence: 99%

Sialic acid biosensing by post-printing modification of PEDOT:PSS with pyridylboronic acid

Fujisaki

Matsumoto

Miyahara

et al. 2022

Science and Technology of Advanced Materials

View full text Add to dashboard Cite

A poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)-based conducting polymer, which has biorecognition capabilities, has promising biosensing applications. Previously, we developed a facile method for post-printing chemical modification of PEDOT:PSS thin films from commercial sources. Molecular recognition elements were directly introduced into the PSS side chain by a two-step chemical reaction: introduction of an ethylenediamine linker via an acid chloride reaction of the sulfonate moiety, and subsequent receptor attachment to the linker via amine coupling. In this study, the same method was used to introduce 6-carboxypyridine-3-boronic acid (carboxy-PyBA) into the linker for specifically detecting N -acetylneuraminic acid (sialic acid, SA), as a cancer biomarker. The surface-modified PEDOT:PSS films were characterized by X-ray photoelectron spectroscopy, attenuated total reflection Fourier-transform infrared spectroscopy, and static water contact angle and conductivity measurements. The specific interaction between PyBA and SA was detected by label-free reagent-free potentiometry. The SA-specific negative potential responses of modified PEDOT:PSS electrodes, which was ascribed to an SA carboxyl anion, were observed in a physiologically relevant SA range (1.6–2.9 mM) at pH 5, in a concentration-dependent manner even in the presence of 10% fetal bovine serum. The sensitivity was −2.9 mV/mM in 1–5 mM SA with a limit of detection of 0.7 mM. The sensing performances were almost equivalent to those of existing graphene-based electrical SA sensors. These results show that our chemical derivatization method for printing PEDOT:PSS thin films will have applications in SA clinical diagnostics.

show abstract

Breathing-effect assisted transferring large-area PEDOT:PSS to PDMS substrate with robust adhesion for stable flexible pressure sensor

Cited by 38 publications

References 36 publications

Water-Based Highly Stretchable PEDOT:PSS/Nonionic WPU Transparent Electrode

Water-Based Highly Stretchable PEDOT:PSS/Nonionic WPU Transparent Electrode

Printed temperature sensor array for high-resolution thermal mapping

Sialic acid biosensing by post-printing modification of PEDOT:PSS with pyridylboronic acid

Contact Info

Product

Resources

About