Engineering Synergy: Energy and Mass Transport in Hybrid Nanomaterials

Cho, Eun Seon; Coates, Nelson E.; Forster, Jason D.; Ruminski, Anne M.; Russ, Boris; Sahu, Ayaskanta; Su, Norman C.; Yang, Fan; Urban, Jeffrey J.

doi:10.1002/adma.201500130

Cited by 36 publications

(27 citation statements)

References 61 publications

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“…Soft thermoelectric materials can realize flexible energy generation or heating-cooling devices with conformal geometries, enabling a new portfolio of applications for thermoelectric technologies 3 . Of particular interest are hybrid soft nanomaterials – an emerging material class that combines organic and inorganic components to yield fundamentally new properties 9–12 .…”

Section: Introductionmentioning

confidence: 99%

Polymer morphology and interfacial charge transfer dominate over energy-dependent scattering in organic-inorganic thermoelectrics

et al. 2018

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Hybrid (organic-inorganic) materials have emerged as a promising class of thermoelectric materials, achieving power factors (S2σ) exceeding those of either constituent. The mechanism of this enhancement is still under debate, and pinpointing the underlying physics has proven difficult. In this work, we combine transport measurements with theoretical simulations and first principles calculations on a prototypical PEDOT:PSS-Te(Cux) nanowire hybrid material system to understand the effect of templating and charge redistribution on the thermoelectric performance. Further, we apply the recently developed Kang-Snyder charge transport model to show that scattering of holes in the hybrid system, defined by the energy-dependent scattering parameter, remains the same as in the host polymer matrix; performance is instead dictated by polymer morphology manifested in an energy-independent transport coefficient. We build upon this language to explain thermoelectric behavior in a variety of PEDOT and P3HT based hybrids acting as a guide for future work in multiphase materials.

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Section: Introductionmentioning

confidence: 99%

Polymer morphology and interfacial charge transfer dominate over energy-dependent scattering in organic-inorganic thermoelectrics

et al. 2018

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“…Soft thermoelectrics provide the unique opportunity to combine traditional thermoelectric energy generation with inexpensive processing methods, tunable chemistries, and flexible form factors, opening the door to previously unattainable device architectures and applications . Traditional inorganic thermoelectrics are restricted by rigid geometries and use of expensive components with low earth abundance.…”

Section: Introductionmentioning

confidence: 99%

Soft PEDOT:PSS aerogel architectures for thermoelectric applications

Gordon

Zaia

Zhou

et al. 2016

J of Applied Polymer Sci

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In this study, we present the first characterization of pure PEDOT:PSS aerogels fabricated via a facile and reproducible freeze–drying technique using no additional crosslinking agents, and it is demonstrated that these materials provide a promising path to new classes of polymeric thermoelectric materials. The morphology, chemical composition, and thermoelectric properties of these robust and mechanically stable aerogels were investigated upon treatment with ethylene glycol. By direct comparison to fully dense PEDOT:PSS thick films, it is shown that the electronic portion of thermoelectric transport in PEDOT:PSS was remarkably unaffected by morphological porosity, presenting exciting opportunities for novel soft materials that simultaneously integrate thermoelectric behavior while also capitalizing on the high surface area scaffolding accessible in such aerogel architectures. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44070.

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“…Hybrid nanomaterials made up of two or more functional components (i.e., nanocrystals) hold promise for use in advanced electronics, energy‐conversion devices, and biotechnology, due to their enhanced or novel functional properties . Their superior performance originates from the strong interactions between the constituent components . In this regard, complex multicomponent systems (≥ three components) can offer more opportunities for creating new functionalities, integrating multiple functionalities in one system, or producing synergistic properties through the interplay between different functional components .…”

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confidence: 99%

Engineering Bulk, Layered, Multicomponent Nanostructures with High Energy Density

Huang

Lou

et al. 2018

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The precise control of individual components in multicomponent nanostructures is crucial to realizing their fascinating functionalities for applications in electronics, energy-conversion devices, and biotechnologies. However, this control remains particularly challenging for bulk, multicomponent nanomaterials because the desired structures of the constitute components often conflict. Herein, a strategy is reported for simultaneously controlling the structural properties of the constituent components in bulk multicomponent nanostructures through layered structural design. The power of this approach is illustrated by generating the desired structures of each constituent in a bulk multicomponent nanomaterial (SmCo + FeCo)/NdFeB, which cannot be attained with existing methods. The resulting nanostructure exhibits a record high energy density (31 MGOe) for this class of bulk nanocomposites composed of both hard and soft magnetic materials, with the soft magnetic fraction exceeding 20 wt%. It is anticipated that other properties beyond magnetism, such as the thermoelectric and mechanical properties, can also be tuned by engineering such layered architectures.

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Engineering Synergy: Energy and Mass Transport in Hybrid Nanomaterials

Cited by 36 publications

References 61 publications

Polymer morphology and interfacial charge transfer dominate over energy-dependent scattering in organic-inorganic thermoelectrics

Polymer morphology and interfacial charge transfer dominate over energy-dependent scattering in organic-inorganic thermoelectrics

Soft PEDOT:PSS aerogel architectures for thermoelectric applications

Engineering Bulk, Layered, Multicomponent Nanostructures with High Energy Density

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