Towards high-performance polymer-based thermoelectric materials

He, Meng; Qiu, Feng; Lin, Zhiqun

doi:10.1039/c3ee24193a

Cited by 434 publications

(309 citation statements)

References 119 publications

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“…1 Conjugated polymers have become attractive materials for producing thermoelectric devices. 2 Their flexibility and transparency are well suited to applications in wearable devices, along with the low working temperature range, around room temperature, rendering them superior to most traditional inorganic TE materials. 3 Silicon is the most widely used semiconductor material.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Silicon Nanostructures with Conductive Ligands and Their Microscopic Conductivity

Bian

Peck

Cottrell

et al. 2016

Journal of Elec Materi

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Silicon nanoparticles (SiNPs) functionalized with conjugated molecules are a promising potential pathway for generating an alternative category of thermoelectric materials. While the thermoelectric performance of materials based on phenylacetylene-capped SiNPs has been proven, their low conductivity is still a problem for their general application. A muon study of phenylacetylenecapped SiNPs was recently carried out using the HIFI spectrometer at the Rutherford Appleton Laboratory, measuring the avoided level-crossing spectra as a function of temperature. The results show a reduction in the measured line width of the resonance above room temperature, suggesting an activated behaviour for this system. This study shows that the muon study could be a powerful method for investigating microscopic conductivity of hybrid thermoelectric materials.

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Section: Introductionmentioning

confidence: 99%

Hybrid Silicon Nanostructures with Conductive Ligands and Their Microscopic Conductivity

Bian

Peck

Cottrell

et al. 2016

Journal of Elec Materi

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“…Several excellent reviews and reports have already explored the distinct advancements of organic and inorganic materials for flexible TEG applications. [51][52][53][54][55] In fact, research on naturally-flexible, polymerbased materials have been focusing on improving their TE properties, whereas inorganic-based approaches have been relying on wellknown techniques for their implementation, such as molding 56 and lithographic patterning. 57,58 On the other hand, a different approach consist of the beneficial integration and mixing between organics and inorganics to form composite materials with increased functionality and performance; the ideal is to combine the best of each material.…”

Section: Mechanically Adaptable Thermoelectric Generators and Applicamentioning

confidence: 99%

Review—Micro and Nano-Engineering Enabled New Generation of Thermoelectric Generator Devices and Applications

Rojas

Singh

Inayat³

et al. 2017

ECS J. Solid State Sci. Technol.

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As we are advancing our world to smart living, a critical challenge is increasingly pressing -increased energy demand. While we need mega power supplies for running data centers and other emerging applications, we also need instant small-scale power supply for trillions of electronics that we are using and will use in the age of Internet of Things (IoT) and Internet of Everything (IoE). Such power supplies must meet some parallel demands: sufficient energy supply in reliable, safe and affordable manner. In that regard, thermoelectric generators emerge as important renewable energy source with great potential to take advantage of the widely-abundant and normally-wasted thermal energy. Thanks to the advancements of nano-engineered materials, thermoelectric generators' (TEG) performance and feasibility are gradually improving. However, still innovative engineering solutions are scarce to sufficiently take the TEG performance and functionalities beyond the status-quo. Opportunities exist to integrate them with emerging fields and technologies such as wearable electronics, bio-integrated systems, cybernetics and others. This review will mainly focus on unorthodox but effective engineering solutions to notch up the overall performance of TEGs and broadening their application base. First, nanotechnology's influence in TEGs' development will be introduced, followed by a discussion on how the introduction of mechanically reconfigurable devices can shape up the emerging spectrum of novel TEG technologies. The technology-driven age we are currently in, have brought great advantages to establish a more comfortable and smarter living and it is leading the way for an even faster-growing development in all areas of science and engineering, but at the same time it brings an incredibly fast growing demand for energy. Current and future energy consumption mandate the need for alternative energy sources, with reduced environmental impact. Readily available solar and wind energies have lead the way as alternative energy sources to environmentally challenging fossil fuels.1 Moreover, thanks to more recent developments in thermoelectric (TE) materials and devices, the possibility of making a better use of the widely abundant and normally wasted thermal energy, has becoming a popular and feasible alternative.2 More importantly, thermal waste has become a very important and environmentallyfriendly source of otherwise wasted energy.3,4 There has been already an important set of studies covering the mechanism involved during the conversion from thermal to electric energy. [5][6][7][8] Such studies have been the starting point to develop and optimize novel TE materials with the resourceful aid of uprising nanotechnologies. 9,10 In this review, we will first shortly introduce some important basic concepts and relations about thermoelectrics, as well as some of the current efforts to use nanotechnologies and nano-materials to improve performance and viability. Next, we will focus on identifying innovative devices, novel engineering approach...

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“…Simultaneously, polymeric materials have attracted increasing interests in the field of thermally conductive materials for the excellent processability, low density and low cost [7]. However, most polymeric materials are thermally insulating and have low thermal conductivities between 0.1-0.5 W·(m·K) -1 [8]. Traditional thermally conductive materials metal crystals for instance, have a large number of free electrons outside the nuclei which arrange neatly as shown in Figure 1a.…”

Section: Introductionmentioning

confidence: 99%

Synergistically improved thermal conductivity of polyamide-6 with low melting temperature metal and graphite

Jia¹,

He²,

Yu³

et al. 2016

Express Polym. Lett.

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Abstract. Low melting temperature metal (LMTM)-tin (Sn) was introduced into polyamide-6 (PA6) and PA6/graphite composites respectively to improve the thermal conductivity of PA6 by melt processing (extruding and injection molding). After introducing Sn, the thermal conductivity of PA6/Sn was nearly constant because of the serious agglomeration of Sn. However, when 20 wt% (5.4 vol%) of Sn was added into PA6 containing 50 wt% (33.3 vol%) of graphite, the thermal conductivity of the composite was dramatically increased to 5.364 versus 1.852 W·(m·K) -1 for the PA6/graphite composite, which suggests that the incorporation of graphite and Sn have a significant synergistic effect on the thermal conductivity improvement of PA6. What is more, the electrical conductivity of the composite increased nearly 8 orders of magnitudes after introducing both graphite and Sn. Characterization of microstructure and energy dispersive spectrum analysis (EDS) indicates that the dispersion of Sn in PA6/graphite/Sn was much more uniform than that of PA6/Sn composite. According to Differential Scanning Calorimetry measurement and EDS, the uniform dispersion of Sn in PA6/graphite/Sn and the high thermal conductivity of PA6/graphite/Sn are speculated to be related with the electron transfer between graphite and Sn, which makes Sn distribute evenly around the graphite layers.

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Towards high-performance polymer-based thermoelectric materials

Cited by 434 publications

References 119 publications

Hybrid Silicon Nanostructures with Conductive Ligands and Their Microscopic Conductivity

Hybrid Silicon Nanostructures with Conductive Ligands and Their Microscopic Conductivity

Review—Micro and Nano-Engineering Enabled New Generation of Thermoelectric Generator Devices and Applications

Synergistically improved thermal conductivity of polyamide-6 with low melting temperature metal and graphite

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