Facile Fabrication of <i>N</i>-Type Flexible CoSb<sub>3-x</sub>Te<sub>x</sub> Skutterudite/PEDOT:PSS Hybrid Thermoelectric Films

Alongiside the growing demand for wearable and implantable electronics, the development of flexible thermoelectric (FTE) materials holds great promise and has recently become a highly necessitated and efficient method for converting heat to electricity. Conductive polymers were widely used in previo...

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Main Authors: Asahi Kato, Cédric Bourgès, Hong Pang, Daniel Gutiérrez, Takeaki Sakurai, Takao Mori
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/14/10/1986
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author Asahi Kato
Cédric Bourgès
Hong Pang
Daniel Gutiérrez
Takeaki Sakurai
Takao Mori
author_facet Asahi Kato
Cédric Bourgès
Hong Pang
Daniel Gutiérrez
Takeaki Sakurai
Takao Mori
author_sort Asahi Kato
collection DOAJ
description Alongiside the growing demand for wearable and implantable electronics, the development of flexible thermoelectric (FTE) materials holds great promise and has recently become a highly necessitated and efficient method for converting heat to electricity. Conductive polymers were widely used in previous research; however, <i>n</i>-type polymers suffer from instability compared to the <i>p</i>-type polymers, which results in a deficiency in the <i>n</i>-type TE leg for FTE devices. The development of the <i>n</i>-type FTE is still at a relatively early stage with limited applicable materials, insufficient conversion efficiency, and issues such as an undesirably high cost or toxic element consumption. In this work, as a prototype, a flexible <i>n</i>-type rare-earth free skutterudite (CoSb<sub>3</sub>)/poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate (PEDOT:PSS) binary thermoelectric film was fabricated based on ball-milled skutterudite via a facile top-down method, which is promising to be widely applicable to the hybridization of conventional bulk TE materials. The polymers bridge the separated thermoelectric particles and provide a conducting pathway for carriers, leading to an enhancement in electrical conductivity and a competitive Seebeck coefficient. The current work proposes a rational design towards FTE devices and provides a perspective for the exploration of conventional thermoelectric materials for wearable electronics.
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spelling doaj.art-d35a085fcf8748d8815b95148453a0852023-11-23T12:45:39ZengMDPI AGPolymers2073-43602022-05-011410198610.3390/polym14101986Facile Fabrication of <i>N</i>-Type Flexible CoSb<sub>3-x</sub>Te<sub>x</sub> Skutterudite/PEDOT:PSS Hybrid Thermoelectric FilmsAsahi Kato0Cédric Bourgès1Hong Pang2Daniel Gutiérrez3Takeaki Sakurai4Takao Mori5International Center for Materials Nanoarchitectonics (WPI-MANA), NIMS, 1-1 Namiki, Tsukuba 305-0044, Ibaraki, JapanInternational Center for Materials Nanoarchitectonics (WPI-MANA), NIMS, 1-1 Namiki, Tsukuba 305-0044, Ibaraki, JapanInternational Center for Materials Nanoarchitectonics (WPI-MANA), NIMS, 1-1 Namiki, Tsukuba 305-0044, Ibaraki, JapanInternational Center for Materials Nanoarchitectonics (WPI-MANA), NIMS, 1-1 Namiki, Tsukuba 305-0044, Ibaraki, JapanGraduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Ibaraki, JapanInternational Center for Materials Nanoarchitectonics (WPI-MANA), NIMS, 1-1 Namiki, Tsukuba 305-0044, Ibaraki, JapanAlongiside the growing demand for wearable and implantable electronics, the development of flexible thermoelectric (FTE) materials holds great promise and has recently become a highly necessitated and efficient method for converting heat to electricity. Conductive polymers were widely used in previous research; however, <i>n</i>-type polymers suffer from instability compared to the <i>p</i>-type polymers, which results in a deficiency in the <i>n</i>-type TE leg for FTE devices. The development of the <i>n</i>-type FTE is still at a relatively early stage with limited applicable materials, insufficient conversion efficiency, and issues such as an undesirably high cost or toxic element consumption. In this work, as a prototype, a flexible <i>n</i>-type rare-earth free skutterudite (CoSb<sub>3</sub>)/poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate (PEDOT:PSS) binary thermoelectric film was fabricated based on ball-milled skutterudite via a facile top-down method, which is promising to be widely applicable to the hybridization of conventional bulk TE materials. The polymers bridge the separated thermoelectric particles and provide a conducting pathway for carriers, leading to an enhancement in electrical conductivity and a competitive Seebeck coefficient. The current work proposes a rational design towards FTE devices and provides a perspective for the exploration of conventional thermoelectric materials for wearable electronics.https://www.mdpi.com/2073-4360/14/10/1986<i>n</i>-typeskutteruditePEDOT:PSSfilmflexiblethermoelectric
spellingShingle Asahi Kato
Cédric Bourgès
Hong Pang
Daniel Gutiérrez
Takeaki Sakurai
Takao Mori
Facile Fabrication of <i>N</i>-Type Flexible CoSb<sub>3-x</sub>Te<sub>x</sub> Skutterudite/PEDOT:PSS Hybrid Thermoelectric Films
Polymers
<i>n</i>-type
skutterudite
PEDOT:PSS
film
flexible
thermoelectric
title Facile Fabrication of <i>N</i>-Type Flexible CoSb<sub>3-x</sub>Te<sub>x</sub> Skutterudite/PEDOT:PSS Hybrid Thermoelectric Films
title_full Facile Fabrication of <i>N</i>-Type Flexible CoSb<sub>3-x</sub>Te<sub>x</sub> Skutterudite/PEDOT:PSS Hybrid Thermoelectric Films
title_fullStr Facile Fabrication of <i>N</i>-Type Flexible CoSb<sub>3-x</sub>Te<sub>x</sub> Skutterudite/PEDOT:PSS Hybrid Thermoelectric Films
title_full_unstemmed Facile Fabrication of <i>N</i>-Type Flexible CoSb<sub>3-x</sub>Te<sub>x</sub> Skutterudite/PEDOT:PSS Hybrid Thermoelectric Films
title_short Facile Fabrication of <i>N</i>-Type Flexible CoSb<sub>3-x</sub>Te<sub>x</sub> Skutterudite/PEDOT:PSS Hybrid Thermoelectric Films
title_sort facile fabrication of i n i type flexible cosb sub 3 x sub te sub x sub skutterudite pedot pss hybrid thermoelectric films
topic <i>n</i>-type
skutterudite
PEDOT:PSS
film
flexible
thermoelectric
url https://www.mdpi.com/2073-4360/14/10/1986
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