2D Materials for Large‐Area Flexible Thermoelectric Devices,Advanced Energy Materials

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2D Materials for Large‐Area Flexible Thermoelectric Devices
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2019-11-25 , DOI: 10.1002/aenm.201902842
Kaito Kanahashi ₁ , Jiang Pu ₂ , Taishi Takenobu ₂

Affiliation

The rapid development of the concept of the “Internet of Things (IoT)” requires wearable devices with maintenance‐free batteries, and thermoelectric energy conversion based on large‐area flexible materials has attracted much attention. Among large‐area flexible materials, 2D materials, such as graphene and related materials, are promising for thermoelectric applications due to their excellent transport properties and large power factors. In this Review, both single‐crystalline and polycrystalline 2D materials are surveyed using the experimental reports on thermoelectric devices of graphene, black phosphorus, transition metal dichalcogenides, and other 2D materials. In particular, their carrier‐density dependent thermoelectric properties and power factors maximized by Fermi level tuning techniques are focused. The comparison of the relevant performances between 2D materials and commonly used thermoelectric materials reveals the significantly enhanced power factors in 2D materials. Moreover, the current progress in thermoelectric module applications using large‐area 2D material thin films is summarized, which consequently offers great potential for the use of 2D materials in large‐area flexible thermoelectric device applications. Finally, important remaining issues and future perspectives, such as preparation methods, thermal transports, device designs, and promising effects in 2D materials, are discussed.

中文翻译：

大面积柔性热电设备的2D材料

“物联网（IoT）”概念的快速发展要求具有免维护电池的可穿戴设备，基于大面积柔性材料的热电转换已引起了广泛关注。在大面积的柔性材料中，诸如石墨烯和相关材料之类的2D材料因其出色的传输性能和大功率因数而有望用于热电应用。在本综述中，使用关于石墨烯，黑磷，过渡金属二卤化物和其他2D材料的热电装置的实验报告对单晶和多晶2D材料进行了调查。特别要注意的是，它们的载流子密度依赖的热电特性和费米能级调整技术使功率因数最大化。通过比较2D材料和常用热电材料的相关性能，可以发现2D材料中的功率因数显着提高。此外，总结了在使用大面积2D材料薄膜的热电模块应用中的最新进展，因此为在大面积柔性热电设备应用中使用2D材料提供了巨大的潜力。最后，讨论了重要的剩余问题和未来展望，例如制备方法，热传输，设备设计以及2D材料中的有希望的效果。总结了使用大面积2D材料薄膜的热电模块应用的当前进展，因此为在大面积柔性热电设备应用中2D材料的使用提供了巨大的潜力。最后，还讨论了重要的剩余问题和未来展望，例如制备方法，热传输，设备设计以及2D材料中的有希望的效果。总结了使用大面积2D材料薄膜的热电模块应用的最新进展，因此为在大面积柔性热电设备应用中2D材料的使用提供了巨大的潜力。最后，讨论了重要的剩余问题和未来展望，例如制备方法，热传输，设备设计以及2D材料中的有希望的效果。

更新日期：2020-03-19

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