Enhanced thermoelectric properties of the flexible tellurium nanowire film hybridized with single-walled carbon nanotube

Choi, Jinkyung; Lee, Jang Yeol; Lee, Hyunjung; Park, Chong Rae; Kim, Heesuk

doi:10.1016/j.synthmet.2014.10.037

Cited by 20 publications

(13 citation statements)

References 33 publications

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“…Based on the above, it can be concluded that the addition of the highly conductive SWCNTs within the TeNWs was beneficial for the overall TE performance of the developed films. This can be attributed to bridging phenomena that create conductive paths between the two nanomaterials, resulting in a reduction of the contact resistance without eliminating the overall TE performance [ 57 , 58 , 59 ]. Moreover, the extremely brittle nature of TeNWs buckypaper films renders this material unsuitable for further processing and practical applications.…”

Section: Resultsmentioning

confidence: 99%

An Approach toward the Realization of a Through-Thickness Glass Fiber/Epoxy Thermoelectric Generator

et al. 2021

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The present study demonstrates, for the first time, the ability of a 10-ply glass fiber-reinforced polymer composite laminate to operate as a structural through-thickness thermoelectric generator. For this purpose, inorganic tellurium nanowires were mixed with single-wall carbon nanotubes in a wet chemical approach, capable of resulting in a flexible p-type thermoelectric material with a power factor value of 58.88 μW/m·K2. This material was used to prepare an aqueous thermoelectric ink, which was then deposited onto a glass fiber substrate via a simple dip-coating process. The coated glass fiber ply was laminated as top lamina with uncoated glass fiber plies underneath to manufacture a thermoelectric composite capable of generating 54.22 nW power output at a through-thickness temperature difference οf 100 K. The mechanical properties of the proposed through-thickness thermoelectric laminate were tested and compared with those of the plain laminates. A minor reduction of approximately 11.5% was displayed in both the flexural modulus and strength after the integration of the thermoelectric ply. Spectroscopic and morphological analyses were also employed to characterize the obtained thermoelectric nanomaterials and the respective coated glass fiber ply.

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Section: Resultsmentioning

confidence: 99%

An Approach toward the Realization of a Through-Thickness Glass Fiber/Epoxy Thermoelectric Generator

et al. 2021

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“…4b shows the higher power factor of a-SWCNT/TeNW hybrid film than that of pure TeNWs in the range of 0.5 ~ 3 wt% a-SWCNT content, which is consistent with the results reported in the previous literature. [39] As the a-SWCNT content increases up to 10 wt%, more electrical paths among the SWCNTs form, thereby taking after TE properties of pure a-SWCNT. The maximum power factor, 3.40 µW·m −1 ·K −2 at RT, obtained for the hybrid film containing 2 wt% of a-SWCNT, is approximately 3 times higher than the power factor of pure TeNWs.…”

Section: Thermoelectric Properties Of A-swcnt/tenw Hybrid Filmsmentioning

confidence: 99%

Enhanced thermopower in flexible tellurium nanowire films doped using single-walled carbon nanotubes with a rationally designed work function

Choi

Lee

Park

et al. 2015

Carbon

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“…Here, we conducted a series of simulations based on the SCM/PCM model to discuss in what conditions the enhanced thermoelectric properties of Te NW/P3HT, Te NW/PEDOT:PSS, Te NW/rGO, and Te NW/SWCNT composite systems can be interpreted by the SCM/PCM model. In Figure , we can easily find that the model poorly fits the reported experimental data.…”

Section: Results and Discussionmentioning

confidence: 99%

“…Besides the manipulation of doping level and incorporation of nanocarbons (i.e., graphene or carbon nanotubes), adding inorganic semiconducting nanocrystals (i.e., Bi 2 Te 3 , Te, SnSe) is another paramount strategy for enhancing the PF of polymer-based TE materials. − Tellurium nanowires (Te NWs) have been intensively studied as nanofillers in inorganic/polymer composites. − Gao et al reported a PF of 68.4 μWm –1 K –2 in 87.5 wt % Te NW/graphene composite films at 160 °C because of the simultaneous increase of σ, and Choi et al demonstrated that the 98 wt % Te NW/SWCNT composite film exhibits a PF of 3.87 μWm –1 K –2 . Li et al fabricated 90 wt % Te NW/PEDOT:PSS thin films showing a maximum PF of 28.5 μWm –1 K –2 .…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric Properties of Conducting Polymer Nanowire–Tellurium Nanowire Composites

Zhang

et al. 2018

ACS Appl. Energy Mater.

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In recent years, the thermoelectric properties of inorganic/polymer composites have been markedly improved. However, the enhancement mechanism in inorganic/polymer composites is still far from clear. In this work, we fabricate a novel type of thermoelectric composite by mixing high-mobility poly(3,4-ethylenedioxythiophene) nanowire with tellurium nanowire and investigate the thermoelectric properties by varying the loading of tellurium nanowires and the underlying enhancement mechanism. We find that the addition of tellurium nanowire can enhance the thermoelectric power factor of inorganic/polymer nanowire composites by ∼40%. We, for the first time, quantitatively interpret the effect of energy filtering on thermoelectric power factor enhancement in polymer inorganic composites by employing the hopping transport theory. In contrast to the series/parallel connected model, we determine that the energy filtering is more feasible to physically explain the thermoelectric enhancement. It can numerically explain the enhancement in Seebeck coefficient, electrical conductivity, and power factor. We believe it is assigned to the high carrier mobility in nanowire composites and proper energy barrier at polymer/inorganic interfaces.

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Enhanced thermoelectric properties of the flexible tellurium nanowire film hybridized with single-walled carbon nanotube

Cited by 20 publications

References 33 publications

An Approach toward the Realization of a Through-Thickness Glass Fiber/Epoxy Thermoelectric Generator

An Approach toward the Realization of a Through-Thickness Glass Fiber/Epoxy Thermoelectric Generator

Enhanced thermopower in flexible tellurium nanowire films doped using single-walled carbon nanotubes with a rationally designed work function

Thermoelectric Properties of Conducting Polymer Nanowire–Tellurium Nanowire Composites

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