SWCNT network evolution of PEDOT:PSS/SWCNT composites for thermoelectric application

Wei, Shasha; Zhang, Yichuan; Lv, Hang; Deng, Liang; Chen, Guangming

doi:10.1016/j.cej.2021.131137

Cited by 63 publications

(39 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is clear that the introduction of CNTs significantly enhances the S T of the composite sponge because the CNTs with large aspect ratios provide more conductive paths inside the sponge than the sponge with PEDOT:PSS only. The conjugation and van der Waals force interactions between the CNTs and the PEDOT:PSS further improve the carrier transport. − …”

Section: Resultsmentioning

confidence: 99%

Self-Powered Resilient Porous Sensors with Thermoelectric Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate) and Carbon Nanotubes for Sensitive Temperature and Pressure Dual-Mode Sensing

Gao

Liu

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Portable and wearable dual-mode sensors that can simultaneously detect multiple stimuli are essential for emerging artificial intelligence applications, and most efforts are devoted to exploring pressure-sensing devices. It is still challenging to integrate temperature and pressure-sensing functions into one sensor without the requirement for complex decoupling processes. Herein, we develop a self-powered and multifunctional dual-mode sensor by dip-coating melamine sponge with both poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and carboxylated single-walled carbon nanotubes (CNTs). By integrating thermoelectric and conductive PEDOT:PSS/CNT components with the hydrophilic and resilient porous sponge, the resultant sensor is efficient in independently detecting temperature and pressure changes. The temperature and pressure stimuli can be independently converted to voltage and electrical resistance signals on the basis of the Seebeck and piezoresistive effects, respectively. The sensor exhibits a high Seebeck coefficient of 35.9 μV K–1 with a minimum temperature detection limit of 0.4 K and a pressure sensitivity of −3.35% kPa–1 with a minimum pressure detection limit of 4 Pa. Interestingly, the sensor can also be self-powered upon illumination. These multi-functionalities make the sensor a promising tool for applications in electronic skin, soft robots, solar energy conversion, and personal health monitoring.

show abstract

Section: Resultsmentioning

confidence: 99%

Self-Powered Resilient Porous Sensors with Thermoelectric Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate) and Carbon Nanotubes for Sensitive Temperature and Pressure Dual-Mode Sensing

Gao

Liu

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…Major enhancements in electrical conductivity and the Seebeck coefficient were achieved, and the issue associated with their interdependence was resolved. In addition, the improved TE performance could be due to the energy filtering effect 60 combined with the long PEDOT chain conformation due to the TQDGO filler. It was discovered that thin films have far superior thermoelectric properties than pellets.…”

Section: Discussionmentioning

confidence: 99%

Synthesis of quantum dot-based polymer nanocomposites: assessment of their thermoelectric performances

SHISODIA¹,

Duponchel²,

Leroy³

et al. 2022

Sustainable Energy Fuels

View full text Add to dashboard Cite

show abstract

“…Besides coating nano-sized thin films on substrates, flexible free-standing thick films (with a thickness of >10 μm) are favorable for practical applications in flexible TE devices . By adding carbon nanotubes (CNTs), especially single-walled CNTs (SWCNTs), free-standing and flexible thick films of organic/inorganic composites can be conveniently achieved using a vacuum-filtrating process. − The obtained films reveal superflexibility, which can be easily bent, rolled, and twisted . In this work, flexible PEDOT:PSS/SWCNT composite films were fabricated and post-treated with the ionic liquid of bis (trifluoromethane) sulfonimide lithium salt (LiTFSI) to further enhance its TE performance.…”

Section: Introductionmentioning

confidence: 99%

Flexible and Foldable Films of SWCNT Thermoelectric Composites and an S-Shape Thermoelectric Generator with a Vertical Temperature Gradient

Wei

Liu

Huang

et al. 2022

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

Organic thermoelectric (TE) composites and flexible devices have gained a rapid development in recent decade. Herein, a flexible and foldable film of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate)/single-walled carbon nanotube (PEDOT:PSS/SWCNT) composite is fabricated by post-treatment with an ionic liquid (IL), and an S-shape TE generator (TEG) is designed to harvest heat from human body via a vertical temperature gradient. After being post-treated with IL of bis(trifluoromethane)sulfonimide lithium salt (LiTFSI), the PEDOT:PSS/SWNCT composite displays an improved electrical conductivity from 1063 ± 80 to 1562 ± 170 S cm–1, with an almost constant Seebeck coefficient of ∼21.9 μV K–1 with a 30 wt % content of SWCNT. The TE properties exhibit excellent stability against repeated bending or folding cycles. Furthermore, an S-shape architecture is designed for TEG assembling, which enables effective utilization of a vertical temperature gradient between the human body and surroundings. The present study proposes a universal strategy for harvesting heat using a wearable TEG via a vertical temperature gradient, which represents great prospects for application in self-powered wearable electronics.

show abstract

SWCNT network evolution of PEDOT:PSS/SWCNT composites for thermoelectric application

Cited by 63 publications

References 40 publications

Self-Powered Resilient Porous Sensors with Thermoelectric Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate) and Carbon Nanotubes for Sensitive Temperature and Pressure Dual-Mode Sensing

Self-Powered Resilient Porous Sensors with Thermoelectric Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate) and Carbon Nanotubes for Sensitive Temperature and Pressure Dual-Mode Sensing

Synthesis of quantum dot-based polymer nanocomposites: assessment of their thermoelectric performances

Flexible and Foldable Films of SWCNT Thermoelectric Composites and an S-Shape Thermoelectric Generator with a Vertical Temperature Gradient

Contact Info

Product

Resources

About