Journal ArticleDOI
High-performance thermoelectrics and challenges for practical devices.
TLDR
In this article, the authors provide an overview of mid-to-high-temperature thermoelectrics, their application in modules, and the issues that need to be addressed to enable commercial implementation of state-of-the-art materials.Abstract:
Thermoelectric materials can be potentially employed in solid-state devices that harvest waste heat and convert it to electrical power, thereby improving the efficiency of fuel utilization. The spectacular increases in the efficiencies of these materials achieved over the past decade have raised expectations regarding the use of thermoelectric generators in various energy saving and energy management applications, especially at mid to high temperature (400–900 °C). However, several important issues that prevent successful thermoelectric generator commercialization remain unresolved, in good part because of the lack of a research roadmap. Thermoelectric materials can generate energy from a heat differential. This Review provides an overview of mid- to high-temperature thermoelectrics, their application in modules, and the issues that need to be addressed to enable commercial implementation of state-of-the-art materials.read more
Citations
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Journal ArticleDOI
High thermoelectric performance realized through manipulating layered phonon-electron decoupling
Lizhong Su,Dongyan Wang,Sining Wang,Bingchao Qin,Yuping Wang,Yongxin Qin,Yang Jin,Cheng Chang,Li-Dong Zhao +8 more
TL;DR: Su et al. as mentioned in this paper found that doping tin selenide with chlorine and lead substantially improved the thermoelectric figure of merit over a wide temperature range, mainly due to an improvement in the material's deformation potential related to mass and strain fluctuations introduced into the n-type material.
Journal ArticleDOI
Advances in the design and assembly of flexible thermoelectric device
Tianyi Cao,Zhigang Chen +1 more
TL;DR: In this article , the authors present the latest progress on the up-to-the-date flexible thermoelectric devices (F-TEDs) with their unique designs.
Journal ArticleDOI
Extraordinary role of Zn in enhancing thermoelectric performance of Ga-doped n-type PbTe
Zhong Luo,Songting Cai,Shiqiang Hao,Trevor P. Bailey,Yubo Luo,Wenjun Luo,Yan Yu,Ctirad Uher,Chris Wolverton,Vinayak P. Dravid,Zhigang Zou,Qingyu Yan,Mercouri G. Kanatzidis +12 more
TL;DR: Although Ga doping can weaken the electron phonon coupling of n-type PbTe, Ga-doped pbTe has a relatively low carrier concentration (n) and high lattice thermal conductivity (κlat), resulting in a... as discussed by the authors .
Journal ArticleDOI
Constructing n-type Ag2Se/CNTs composites toward synergistically enhanced thermoelectric and mechanical performance
TL;DR: In this article , a series of Ag2Se/Carbon nanotubes (CNTs) nanocomposites are controllably constructed through in situ solution synthesis combined with fast sintering.
Journal ArticleDOI
Constructing n-Type Ag2Se/CNTs Composites Toward Synergistically Enhanced Thermoelectric and Mechanical Performance
Hengyang Wang,Luke Baxter,Xiaofang Liu,Zizhen Zhou,Hong Wu,Yao Chen,Bin Zhang,Guoyu Wang,Xiaoyuan Zhou,Guang Han +9 more
TL;DR: In this paper, a series of Ag2Se/Carbon nanotubes (CNTs) nanocomposites are controllably constructed through in situ solution synthesis combined with fast sintering.
References
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Journal ArticleDOI
Ultralow thermal conductivity and high thermoelectric figure of merit in SnSe crystals
Li-Dong Zhao,Shih Han Lo,Yongsheng Zhang,Hui Sun,Gangjian Tan,Ctirad Uher,Chris Wolverton,Vinayak P. Dravid,Mercouri G. Kanatzidis +8 more
TL;DR: An unprecedented ZT of 2.6 ± 0.3 at 923 K is reported in SnSe single crystals measured along the b axis of the room-temperature orthorhombic unit cell, which highlights alternative strategies to nanostructuring for achieving high thermoelectric performance.
Journal ArticleDOI
Convergence of electronic bands for high performance bulk thermoelectrics
TL;DR: It is demonstrated that it is possible to direct the convergence of many valleys in a bulk material by tuning the doping and composition, leading to an extraordinary zT value of 1.8 at about 850 kelvin.
Journal ArticleDOI
New and Old Concepts in Thermoelectric Materials
TL;DR: The most promising bulk materials with emphasis on results from the last decade are described and the new opportunities for enhanced performance bulk nanostructured composite materials are examined and a look into the not so distant future is attempted.
Journal ArticleDOI
Copper ion liquid-like thermoelectrics
Huili Liu,Xun Shi,Fangfang Xu,Linlin Zhang,Wenqing Zhang,Lidong Chen,Qiang Li,Ctirad Uher,Tristan Day,G. Jeffrey Snyder +9 more
TL;DR: The results indicate a new strategy and direction for high-efficiency thermoelectric materials by exploring systems where there exists a crystalline sublattice for electronic conduction surrounded by liquid-like ions.
Journal ArticleDOI
Ultrahigh power factor and thermoelectric performance in hole-doped single-crystal SnSe
Li-Dong Zhao,Li-Dong Zhao,Gangjian Tan,Shiqiang Hao,Jiaqing He,Yanling Pei,Hang Chi,Heng Wang,Shengkai Gong,Huibin Xu,Vinayak P. Dravid,Ctirad Uher,G. Jeffrey Snyder,Chris Wolverton,Mercouri G. Kanatzidis +14 more
TL;DR: A record high ZTdev ∼1.34, with ZT ranging from 0.7 to 2.0 at 300 to 773 kelvin, realized in hole-doped tin selenide (SnSe) crystals, arises from the ultrahigh power factor, which comes from a high electrical conductivity and a strongly enhanced Seebeck coefficient enabled by the contribution of multiple electronic valence bands present in SnSe.