Thermoelectric generator with a high integration density for portable and wearable self-powered electronic devices

Toàn, Nguyễn Văn; Tuoi, Truong Thi Kim; Hiếu, Nguyễn Văn; Ono, Takahito

doi:10.1016/j.enconman.2021.114571

Cited by 36 publications

(28 citation statements)

References 51 publications

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“…Wu et al [ 65 ] reported that a flexible TED can effectively harvest human body heat to power a commercial light emitting diode and an electronic thermometer. The flexible TED with a three‐level structure based on thin‐film carbon nanotube assemblies and composed of 20 p–n junctions, which can generate the output voltage of 1.05 V and a power output of 0.95 mW at moderate Δ T of ≈40 K. [ 65 ] Other studies have also demonstrated the capacity of thermoelectric PTM in powering up electronics, such as a wristwatch, [ 66 ] a smart mobile phones, [ 67 ] and a glucose sensor. [ 35 ]…”

Section: Fundamentals Of Thermoelectric Ptmmentioning

confidence: 99%

“…[79] Daily wearable electronics can also be integrated with the thermoelectric PTM to achieve self-power supply. Van Toan et al [66] demonstrated a thermoelectric self-powered wristwatch by the integration of a battery and a thermoelectric PTM as the power unit (Figure 5c). Figure 5d displays the detailed design of the integrated thermoelectric wristwatch.…”

Section: Energy Harvestingmentioning

confidence: 99%

Section: Functions Of Thermoelectric Ptmmentioning

confidence: 99%

Section: Functions Of Thermoelectric Ptmmentioning

confidence: 99%

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Multifunctional Wearable Thermoelectrics for Personal Thermal Management

Liu

et al. 2022

Adv Funct Materials

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With the ever‐increasing demand for wearable electronics and energy‐saving technologies, self‐powered thermoelectric personal thermal management (PTM) has attracted extensive research interest. In this review, the unique characteristics of thermoelectric PTM comparing with other technologies are first highlighted, and the key parameters and fundamental functions of thermoelectric PTM are systematically summarized. Then, the advances in thermoelectric PTM are overviewed from the material design to the wearable device design viewpoints. Finally, the key challenges and future research directions of thermoelectric PTM, where both high‐performance flexible materials and proper device designs are in urgent need, are pointed out. This review will deliver a systematic understanding and guideline for thermoelectric PTM.

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Section: Fundamentals Of Thermoelectric Ptmmentioning

confidence: 99%

Section: Energy Harvestingmentioning

confidence: 99%

Section: Functions Of Thermoelectric Ptmmentioning

confidence: 99%

Section: Functions Of Thermoelectric Ptmmentioning

confidence: 99%

See 2 more Smart Citations

Multifunctional Wearable Thermoelectrics for Personal Thermal Management

Liu

et al. 2022

Adv Funct Materials

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“…With the rapid development of soft robotics, the Internet of Things, and human healthcare, wearable electronic devices have been widely used among human society. − However, most wearable electronic devices require frequent battery charging, which hinders their applications in long-term continuous health monitoring occasions. − Some new energy has begun to be applied for driving electronic sensors, such as wind energy, solar energy, triboelectricity, piezoelectricity, and thermoelectric devices. − Among them, thermoelectric devices could convert low-grade waste heat energy into sustainable electricity to power wearable electronic devices. − Great achevements have been made in developing high-performance thermoelectric materials (e.g., nanoincorporated thermoelectric materials) and devices. − However, the rigid electrodes and thermal interface diffusion of electrodes/thermoelectric materials would bring about wearable discomfort and performance degradation of the thermoelectric device . Therefore, development of a flexible thin-film electrode with high conductivity and excellent reliability is of great significance for flexible thermoelectric devices.…”

Section: Introductionmentioning

confidence: 99%

High Interfacial Thermal Stability of Flexible Flake-Structured Aluminum Thin-Film Electrodes for Bi₂Te₃-Based Thermoelectric Devices

Wang

Zhu

et al. 2022

ACS Appl. Mater. Interfaces

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Environmental thermal energy harvesting based on thermoelectric devices is greatly significant to the advancement of next-generation self-powered wearable electronic devices. However, the rigid electrodes and interface diffusion of electrodes/thermoelectric materials would lead to the wearable discomfort and performance degradation of the thermoelectric device. Here, a flake-structured Al thin-film electrode with high conductivity and excellent reliability is prepared by regulating the microstructure and crystallinity of the films. The as-prepared Al thin film not only maintains its robustness after 1000 bending cycles but also does not delaminate from the substrate when subjected to the 3M tape test, exhibiting excellent flexibility and adhesion to substrate. By comparing with the annealed interface of the double-layer Cu/Bi2Te3 film, the interface of the heat-treated Al/Bi2Te3 film has almost no element diffusion, demonstrating high interfacial thermal stability. Moreover, a thermoelectric temperature sensor based on the Al thin-film electrode is prepared. The sensitivity of the annealed sensor is still linear, and it can stably monitor the temperature variation, showing high reliability. This discovery could provide a facile and effective strategy to achieving highly reliable thermoelectric devices and flexible electronic devices without any additional diffusion barriers.

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Closed‐Loop Error‐Correction Learning Accelerates Experimental Discovery of Thermoelectric Materials

et al. 2023

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The exploration of thermoelectric materials is challenging considering the large materials space, combined with added exponential degrees of freedom coming from doping and the diversity of synthetic pathways. Here, historical data is incorporated, and is updated using experimental feedback by employing error‐correction learning (ECL). This is achieved by learning from prior datasets and then adapting the model to differences in synthesis and characterization that are otherwise difficult to parameterize. This strategy is thus applied to discovering thermoelectric materials, where synthesis is prioritized at temperatures <300 ○C. A previously unexplored chemical family of thermoelectric materials, PbSe:SnSb, is documented, finding that the best candidate in this chemical family, 2 wt% SnSb doped PbSe, exhibits a power factor more than 2× that of PbSe. The investigations herein reveal that a closed‐loop experimentation strategy reduces the required number of experiments to find an optimized material by a factor as high as 3× compared to high‐throughput searches powered by state‐of‐the‐art machine‐learning (ML) models. It is also observed that this improvement is dependent on the accuracy of the ML model in a manner that exhibits diminishing returns: once a certain accuracy is reached, factors that are instead associated with experimental pathways begin to dominate trends.

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Thermoelectric generator with a high integration density for portable and wearable self-powered electronic devices

Cited by 36 publications

References 51 publications

Multifunctional Wearable Thermoelectrics for Personal Thermal Management

Multifunctional Wearable Thermoelectrics for Personal Thermal Management

High Interfacial Thermal Stability of Flexible Flake-Structured Aluminum Thin-Film Electrodes for Bi₂Te₃-Based Thermoelectric Devices

Closed‐Loop Error‐Correction Learning Accelerates Experimental Discovery of Thermoelectric Materials

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Thermoelectric generator with a high integration density for portable and wearable self-powered electronic devices

Cited by 36 publications

References 51 publications

Multifunctional Wearable Thermoelectrics for Personal Thermal Management

Multifunctional Wearable Thermoelectrics for Personal Thermal Management

High Interfacial Thermal Stability of Flexible Flake-Structured Aluminum Thin-Film Electrodes for Bi2Te3-Based Thermoelectric Devices

Closed‐Loop Error‐Correction Learning Accelerates Experimental Discovery of Thermoelectric Materials

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High Interfacial Thermal Stability of Flexible Flake-Structured Aluminum Thin-Film Electrodes for Bi₂Te₃-Based Thermoelectric Devices