Hybrid Organic–Inorganic Thermoelectric Materials and Devices

Jin, Huile; Li, Jun; Iocozzia, James; Zeng, Xin; Wei, Pai‐Chun; Yang, Chao; Li, Nan; Liu, Zhaoping; He, Jr Hau; Zhu, Tiejun; Wang, Jichang; Lin, Zhiqun; Wang, Shun

doi:10.1002/anie.201901106

Cited by 178 publications

(105 citation statements)

References 118 publications

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“…Several notable reviews have been prepared covering topics within the FTE area . Among them, Du et al reviewed different classes of FTE materials and devices, Bahk et al reviewed the guidelines for FTE devices in wearable energy harvesting, and some others focused on the subtopics of FTEs, such as organic FTE materials, carbon‐nanotube‐based FTEs and organic/inorganic FTE hybrids . Our purpose here is to provide a comprehensive insight into the progress on the mechanisms and strategies involved for FTEs, including materials, modules, and the underlying physics and chemistry.…”

Section: Introductionmentioning

confidence: 99%

“…[4,26,[95][96][97][98][99][100][101] Among them, Du et al [26] reviewed different classes of FTE materials and devices, Bahk et al [4] reviewed the guidelines for FTE devices in wearable energy harvesting, and some others focused on the subtopics of FTEs, such as organic FTE materials, [95][96][97][98] carbon-nanotubebased FTEs [99] and organic/inorganic FTE hybrids. [100,101] Our purpose here is to provide a comprehensive insight into the progress on the mechanisms and strategies involved for FTEs, including materials, modules, and the underlying physics and chemistry. We have comprehensively summarized the strategies to develop high-performance FTE materials (organic, inorganic, and hybrid) by presenting the detailed fundamentals and properties.…”

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confidence: 99%

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Flexible Thermoelectric Materials and Generators: Challenges and Innovations

et al. 2019

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The urgent need for ecofriendly, stable, long‐lifetime power sources is driving the booming market for miniaturized and integrated electronics, including wearable and medical implantable devices. Flexible thermoelectric materials and devices are receiving increasing attention, due to their capability to convert heat into electricity directly by conformably attaching them onto heat sources. Polymer‐based flexible thermoelectric materials are particularly fascinating because of their intrinsic flexibility, affordability, and low toxicity. There are other promising alternatives including inorganic‐based flexible thermoelectrics that have high energy‐conversion efficiency, large power output, and stability at relatively high temperature. Herein, the state‐of‐the‐art in the development of flexible thermoelectric materials and devices is summarized, including exploring the fundamentals behind the performance of flexible thermoelectric materials and devices by relating materials chemistry and physics to properties. By taking insights from carrier and phonon transport, the limitations of high‐performance flexible thermoelectric materials and the underlying mechanisms associated with each optimization strategy are highlighted. Finally, the remaining challenges in flexible thermoelectric materials are discussed in conclusion, and suggestions and a framework to guide future development are provided, which may pave the way for a bright future for flexible thermoelectric devices in the energy market.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Flexible Thermoelectric Materials and Generators: Challenges and Innovations

et al. 2019

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“…These thermodynamic routes have demonstrated their efficacy in a wide range of thermoelectric materials and provided new perspectives, e.g., the interplay between short‐range disorder and high‐symmetry long‐range order in high‐entropy materials, the precise control of compositions, phase stability, and microstructures via phase‐boundary mapping, and the dual hybridity in crystal structure and electrical conduction in liquid‐like thermoelectric materials. These results, along with the light shed by novel organic–inorganic hybrids and new degrees of freedom in transport properties,114,115 beckon to a multidisciplinary community to develop next‐generation thermoelectric materials.…”

Section: Discussionmentioning

confidence: 96%

Thermodynamic Routes to Ultralow Thermal Conductivity and High Thermoelectric Performance

Wei

Liao

et al. 2020

Advanced Materials

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Thermoelectric (TE) research is not only a course of materials by discovery but also a seedbed of novel concepts and methodologies. Herein, the focus is on recent advances in three emerging paradigms: entropy engineering, phase‐boundary mapping, and liquid‐like TE materials in the context of thermodynamic routes. Specifically, entropy engineering is underpinned by the core effects of high‐entropy alloys; the extended solubility limit, the tendency to form a high‐symmetry crystal structure, severe lattice distortions, and sluggish diffusion processes afford large phase space for performance optimization, high electronic‐band degeneracy, rich multiscale microstructures, and low lattice thermal conductivity toward higher‐performance TE materials. Entropy engineering is successfully implemented in half‐Huesler and IV–VI compounds. In Zintl phases and skutterudites, the efficacy of phase‐boundary mapping is demonstrated through unraveling the profound relations among chemical compositions, mutual solubilities of constituent elements, phase instability, microstructures, and resulting TE properties at the operation temperatures. Attention is also given to liquid‐like TE materials that exhibit lattice thermal conductivity at lower than the amorphous limit due to intensive mobile ion disorder and reduced vibrational entropy. To conclude, an outlook on the development of next‐generation TE materials in line with these thermodynamic routes is given.

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“…The hybrid composite of reduced graphene oxide (rGO)/CNT and polymers also showed improved‐thermoelectrical properties compared to the pure polymers by increasing the conductivity of the active materials . Additionally, mixing polymers with inorganic TMs was another effective way to enhance the thermoelectrical property of the polymer matrix . Currently, functional polymers prepared by various methods can produce a ZT value that is comparable to those of inorganic TMs but maintains good flexibility, thus suggesting great potential for preparing high‐performance fiber‐based TEGs.…”

Section: Materials For Energy Conversion Devicesmentioning

confidence: 99%

Fiber‐Based Energy Conversion Devices for Human‐Body Energy Harvesting

et al. 2019

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body is actually a tremendous storehouse of energy that is generated from body heat and motion. [15][16][17][18][19] Power generation from breathing, heating, blood transport, arm motion, typing, and walking could reach to over 100 W for a 68 kg adult's daily activities (Figure 1). [20] Thus, converting 1% of power from the human body may be enough to support the work of most portable electronics.In the past two decades, researchers have developed several energy conversion devices based on piezoelectricity, electrostaticity, triboelectricity, or thermoelectricity that can directly harvest the mechanical or thermal energy and convert it into electric energy (these conversion devices are so-called nanogenerators (NGs)). [21][22][23][24][25] The first nanogenerator (NG) based on ZnO was invented by Prof. Wang in 2006; after that, various NGs were developed to harvest the mechanical or thermal energy with the output performance increasing gradually. [26] These NGs are easy-to-construct flexible devices since most materials for these devices are polymers and nanomaterials. Generally, the flexible devices assembled by film materials can be stretchable and bendable in one direction. But their lack of air-permeability, poor 3D deformation, and low damage tolerance limit their application, especially for wearable electronics. Therefore, fiberbased energy conversion devices have been designed. [27] These fiber-based devices can also be knitted to yarn or fabric in the clothing system to build up a large area electronic system. [28,29] The energy generation and internal charging can be realized by means of a self-powered system that harvests the energy from natural sources around the human body to sustain the wearable electronics. [30][31][32] The search for functional materials that possess good conversion efficiency, as well as great mechanical and environmental stability, combined with a novel device design might push these devices to meet the requirement of a practical application. In the past decade, numerous contributions have been offered to improve the performance of fiber-based energy conversion devices (FBECD) and extend its application. This review specifically summarizes FBECD with different energy conversion mechanisms including piezoelectricity, electrostaticity, triboelectricity, and thermoelectricity in recent processes (Figure 2). The functional materials, fiber fabrication techniques, and device design strategies for different classes of FBECDs are covered in the article. We also introduce an overview of the fiber-based self-powered system and sensors and Following the rapid development of lightweight and flexible smart electronic products, providing energy for these electronics has become a hot research topic. The human body produces considerable mechanical and thermal energy during daily activities, which could be used to power most wearable electronics. In this context, fiber-based energy conversion devices (FBECD) are proposed as candidates for effective conversion of human-body energy into electricity...

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Hybrid Organic–Inorganic Thermoelectric Materials and Devices

Cited by 178 publications

References 118 publications

Flexible Thermoelectric Materials and Generators: Challenges and Innovations

Flexible Thermoelectric Materials and Generators: Challenges and Innovations

Thermodynamic Routes to Ultralow Thermal Conductivity and High Thermoelectric Performance

Fiber‐Based Energy Conversion Devices for Human‐Body Energy Harvesting

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