Chemically Exfoliated SnSe Nanosheets and Their SnSe/Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate) Composite Films for Polymer Based Thermoelectric Applications

Ju, Heongkyu; Kim, Jooheon

doi:10.1021/acsnano.5b07355

Cited by 249 publications

(182 citation statements)

References 45 publications

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“…Some inorganic materials such as carbon nanotubes [132,133], traditional inorganic TE fibers [134,135], metallic nanowires [136,137,138], and so on, have been applied as inorganic components to achieve high enhancement of the Seebeck coefficient and/or electrical conductivity in the conductive polymers. Meanwhile, many conductive inorganic/insulating organic NCs have been studied [139,140,141], in which the infinite conductive path is formed when the volumetric fraction of the inorganic materials is beyond the critical volume fraction according to the percolation theory [142,143,144].…”

Section: Nanocomposites For Thermoelectricitymentioning

confidence: 99%

Thermoelectric Transport in Nanocomposites

Liu

Zhou

et al. 2017

Materials

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Thermoelectric materials which can convert energies directly between heat and electricity are used for solid state cooling and power generation. There is a big challenge to improve the efficiency of energy conversion which can be characterized by the figure of merit (ZT). In the past two decades, the introduction of nanostructures into bulk materials was believed to possibly enhance ZT. Nanocomposites is one kind of nanostructured material system which includes nanoconstituents in a matrix material or is a mixture of different nanoconstituents. Recently, nanocomposites have been theoretically proposed and experimentally synthesized to be high efficiency thermoelectric materials by reducing the lattice thermal conductivity due to phonon-interface scattering and enhancing the electronic performance due to manipulation of electron scattering and band structures. In this review, we summarize the latest progress in both theoretical and experimental works in the field of nanocomposite thermoelectric materials. In particular, we present various models of both phonon transport and electron transport in various nanocomposites established in the last few years. The phonon-interface scattering, low-energy electrical carrier filtering effect, and miniband formation, etc., in nanocomposites are discussed.

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Section: Nanocomposites For Thermoelectricitymentioning

confidence: 99%

Thermoelectric Transport in Nanocomposites

Liu

Zhou

et al. 2017

Materials

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“…For example, PEDOT composites generate zT = 0.42 at room temperature, which is comparable to those of some traditional inorganic materials [6,[16][17][18][19][20]. Organic/inorganic hybridization is another promising way to improve the thermoelectric performance of polymers [21][22][23]. Zhang et al [24] reported that the template-directed in situ polymerization preparation of nanocomposites of PEDOT:poly(4-styrenesulfonic) (PSS) coated with multiwalled carbon nanotubes (MWCNTs) can enhance the thermoelectric properties.…”

Section: Introductionmentioning

confidence: 96%

Ultralight conducting PEDOT:PSS/carbon nanotube aerogels doped with silver for thermoelectric materials

Sun

Zhao

et al. 2017

Sci. China Mater.

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A significant enhancement in the thermoelectric performance was observed for three-dimensional conducting aerogels, which were obtained from poly(3,4-ethylenedioxythiophene) : poly(4-styrenesulfonic) (PEDOT:PSS) and multiwalled carbon nanotubes (MWCNTs) suspensions by adding different concentrations of metallic silver (Ag). It was found that the electrical conductivity and Seebeck coefficient could be simultaneously increased with the unique structure. Moreover, the conducting aerogels have an ultralow thermal conductivity (0.06 W m −1 K −1 ) and a large Brunauer-Emmett-Teller surface area (228 m 2 g −1 ). The highest figure of merit (zT) value in this study was 7.56×10 −3 at room temperature upon the addition of 33.32 wt.% Ag. Although the zT value was too low, our work may provide new insights into the design and development of the thermoelectric material for applications. Further investigation with PEDOT:PSS aerogels will be continued to get an economical, lightweight, and efficient polymer thermoelectric material.

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“…Similar approach can be adopted for other metals such as Mo, Sn composite with PEDOT:PSS for applications in different areas such as thermoelectric, anode materials for lithium-ion batteries etc. [133,134]. Another research group reported the exfoliation of MoS 2 nanosheet in PEDOT:PSS solution by sonication mixing [135].…”

Section: Cp/metal Chalcogenides Nanocompositesmentioning

confidence: 99%