PEDOT:PSS-polyethylene oxide composites for stretchable and 3D-Printed thermoelectric devices

Li, Haoran; Mao, Pengsu; Davis, Melissa A.; Yu, Zhibin

doi:10.1016/j.coco.2020.100599

Cited by 20 publications

(5 citation statements)

References 24 publications

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“…141 FDM extrudes thermoplastic filaments through a heated nozzle resulting in out-of-plane deposition. 141 At the time of writing, very few examples of organic FDM filaments exist, but a PEDOT:PSS-polyethylene oxide composite 142 and a polyurethane/multi-walled CNT composite have recently been reported. 143 Most studied FDM filaments for TEGs are composites containing an inorganic active material and the polymeric component is simply limited to a thermoplastic binder.…”

Section: Vertical Architectures and Fabrication Methodsmentioning

confidence: 99%

Solution processed organic thermoelectric generators as energy harvesters for the Internet of Things

Pataki

Rossi

Caironi

2022

Applied Physics Letters

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Organic thermoelectric generators (TEGs) are a prospective class of versatile energy-harvesters that can enable the capture of low-grade heat and provide power to the growing number of microelectronic devices and sensors in the Internet of Things. The abundance, low-toxicity, and tunability of organic conducting materials along with the scalability of the fabrication techniques promise to culminate in a safe, low-cost, and adaptable device template for a wide range of applications. Despite recent breakthroughs, it is generally recognized that significant advances in n-type organic thermoelectric materials must be made before organic TEGs can make a real impact. Yet, in this perspective, we make the argument that to accelerate progress in the field of organic TEGs, future research should focus more effort into the design and fabrication of application-oriented devices, even though materials have considerable room for improvement. We provide an overview of the best solution-processable organic thermoelectric materials, design considerations, and fabrication techniques relevant for application-oriented TEGs, followed by our perspective on the insight that can be gained by pushing forward with device-level research despite suboptimal materials.

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Section: Vertical Architectures and Fabrication Methodsmentioning

confidence: 99%

Solution processed organic thermoelectric generators as energy harvesters for the Internet of Things

Pataki

Rossi

Caironi

2022

Applied Physics Letters

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“…The solution-processed sensors can be deposited onto the large-area soft substrates that are solvent-compatible with the material [ 25 ]. The manufacturing techniques, including spin coating, inkjet printing, spray coating, and doctor blade printing, are particularly useful for organic materials such as thermoelectric and optoelectronic materials [ 25 , 26 , 27 ]. However, the flexibility/stretchability of the devices is limited by both substrate and sensing elements.…”

Section: Systematic Review Of Skin-wearable Health Monitoring Strategiesmentioning

confidence: 99%

A Review of Skin-Wearable Sensors for Non-Invasive Health Monitoring Applications

Mao

2023

Sensors

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The early detection of fatal diseases is crucial for medical diagnostics and treatment, both of which benefit the individual and society. Portable devices, such as thermometers and blood pressure monitors, and large instruments, such as computed tomography (CT) and X-ray scanners, have already been implemented to collect health-related information. However, collecting health information using conventional medical equipment at home or in a hospital can be inefficient and can potentially affect the timeliness of treatment. Therefore, on-time vital signal collection via healthcare monitoring has received increasing attention. As the largest organ of the human body, skin delivers significant signals reflecting our health condition; thus, receiving vital signals directly from the skin offers the opportunity for accessible and versatile non-invasive monitoring. In particular, emerging flexible and stretchable electronics demonstrate the capability of skin-like devices for on-time and continuous long-term health monitoring. Compared to traditional electronic devices, this type of device has better mechanical properties, such as skin conformal attachment, and maintains compatible detectability. This review divides the health information that can be obtained from skin using the sensor aspect’s input energy forms into five categories: thermoelectrical signals, neural electrical signals, photoelectrical signals, electrochemical signals, and mechanical pressure signals. We then summarize current skin-wearable health monitoring devices and provide outlooks on future development.

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“…While due to the mismatch in the mechanical properties between the TE materials and the stretchable matrixes/substrates, for these TEGs, performance deterioration is usually inevitable upon stretching. (2) The second involves the synthesis of intrinsically extendable TE materials, [18][19][20][21] or the construction Page 2 of 23 CCS Chemistry 3 of intrinsically stretchable TE composites by introducing elastic matrixes. [22][23][24][25][26] Despite the relatively stable Seebeck coefficient, the former approach can hardly sustain constant electrical conductivity during stretching, and the stretchability is substantially limited by the intrinsic mechanical properties of the TE materials (usually < 50%).…”

Section: Introductionmentioning

confidence: 99%

A Wavy-Structured Highly Stretchable Thermoelectric Generator with Stable Energy Output and Self-Rescuing Capability

et al. 2021

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Thermoelectric generators (TEGs) demonstrate great potential for flexible and wearable electronics due to the direct electrical energy harvesting from waste heat. Good wearability requires high mechanical flexibility and preferable stretchability, while current TEGs are primarily developed with rigid or non-stretchable components, which cannot well conform to human skin or accommodate human motions, thus hindering further applications. Herein, a wavy architecture is proposed for the fabrication of stretchable TEGs, where a stretchable and self-healable hydrogel is employed as device substrate, and intrinsically flexible highperformance TE films are attached to form wavy morphologies. The wavy-structured TEG can be readily stretched to 300%, and in the meantime can sustain a stable energy output with more than 90% TE performance retained, which outperforms most of the reported state-of-the-art TE materials and TEGs. It also demonstrates a desired device-level self-rescuing capability originated from the effective self-healing of the hydrogel and the wavy structure of TE legs, thereby providing persistent energy supply upon injuries or damages. This work offers a promising approach for the design of next-generation stretchable and wearable TEGs.

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PEDOT:PSS-polyethylene oxide composites for stretchable and 3D-Printed thermoelectric devices

Cited by 20 publications

References 24 publications

Solution processed organic thermoelectric generators as energy harvesters for the Internet of Things

Solution processed organic thermoelectric generators as energy harvesters for the Internet of Things

A Review of Skin-Wearable Sensors for Non-Invasive Health Monitoring Applications

A Wavy-Structured Highly Stretchable Thermoelectric Generator with Stable Energy Output and Self-Rescuing Capability

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