SnSe: a remarkable new thermoelectric material

2016 ◽  
Vol 9 (10) ◽  
pp. 3044-3060 ◽  
Author(s):  
Li-Dong Zhao ◽  
Cheng Chang ◽  
Gangjian Tan ◽  
Mercouri G. Kanatzidis
Keyword(s):  
Thermal Conductivity ◽  
Thermoelectric Material ◽  
Power Factor ◽  
High Power ◽  
Band Structures ◽  
Low Thermal Conductivity ◽  
High Power Factor

It is remarkable that SnSe exhibits complex band structures and strong anharmonic bonding, endowing it with a high power factor and low thermal conductivity.

High thermoelectric performance of superionic argyrodite compound Ag8SnSe6

2016 ◽  
Vol 4 (24) ◽  
pp. 5806-5813 ◽  
Author(s):  
Lin Li ◽  
Yuan Liu ◽  
Jiyan Dai ◽  
Aijun Hong ◽  
Min Zeng ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Thermoelectric Material ◽  
Power Factor ◽  
High Power ◽  
Figure Of Merit ◽  
Environmentally Friendly ◽  
Thermoelectric Performance ◽  
Low Thermal Conductivity ◽  
High Power Factor ◽  
High Figure

A good thermoelectric material usually has a high power factor and low thermal conductivity for high figure of merit (ZT), and is also environmentally friendly and economical.

scholarly journals Ternary selenides A2Sb4Se8 (A = K, Rb and Cs) as an n-type thermoelectric material with high power factor and low lattice thermal conductivity: importance of the conformationally flexible Sb–Se–Se–Sb bridges

RSC Advances ◽  
2020 ◽  
Vol 10 (24) ◽  
pp. 14415-14421
Author(s):  
Changhoon Lee ◽  
Sujee Kim ◽  
Won-Joon Son ◽  
Ji-Hoon Shim ◽  
Myung-Hwan Whangbo
Keyword(s):  
Thermal Conductivity ◽  
Thermoelectric Properties ◽  
Thermoelectric Material ◽  
Power Factor ◽  
High Power ◽  
High Performance ◽  
Lattice Thermal Conductivity ◽  
High Power Factor

The ternary selenides A2Sb4Se8 (A = K, Rb, Cs) are predicted to be a high-performance n-type thermoelectric material, and the conformationally-flexible Sb–Se(2)–Se(2)–Sb bridges are crucial in determining the thermoelectric properties of A2Sb4Se8.

Thermoelectric Performance of ZrNX (X = Cl, Br, I) Monolayers

2021 ◽  
Author(s):  
Wenwu Shi ◽  
Nina Ge ◽  
Xinzhong Wang ◽  
Zhiguo Wang
Keyword(s):  
Thermal Conductivity ◽  
Power Factor ◽  
High Power ◽  
Thermoelectric Materials ◽  
Lattice Thermal Conductivity ◽  
Thermoelectric Performance ◽  
Low Thermal Conductivity ◽  
High Power Factor

Low thermal conductivity and high power factor are essential for the efficient thermoelectric materials. The lattice thermal conductivity can be reduced by reducing the dimension of materials, thus improving the...

scholarly journals Exotic thermoelectric behavior in nitrogenated holey graphene

RSC Advances ◽  
2017 ◽  
Vol 7 (42) ◽  
pp. 25803-25810 ◽  
Author(s):  
Yinchang Zhao ◽  
Zhenhong Dai ◽  
Chao Lian ◽  
Sheng Meng,
Keyword(s):  
Thermal Conductivity ◽  
Power Factor ◽  
High Power ◽  
Low Thermal Conductivity ◽  
High Power Factor

Due to a high power factor and low thermal conductivity, azTexceeding 5.0 is reached in nitrogenated holey graphene.

Exceptional thermoelectric performance of a “star-like” SnSe nanotube with ultra-low thermal conductivity and a high power factor

2017 ◽  
Vol 19 (34) ◽  
pp. 23247-23253 ◽  
Author(s):  
Chensheng Lin ◽  
Wendan Cheng ◽  
Zhengxiao Guo ◽  
Guoliang Chai ◽  
Hao Zhang
Keyword(s):  
Thermal Conductivity ◽  
Power Factor ◽  
High Power ◽  
Thermoelectric Performance ◽  
Low Thermal Conductivity ◽  
High Power Factor

A “star-like” SnSe nanotube shows an exceptionally large ZT value of 3.5–4.6, which is far greater than that of the corresponding SnSe crystal.

A High Thermoelectric Performance ZT in p-Type LaSe2 Crystal

2021 ◽  
Vol 871 ◽  
pp. 203-207
Author(s):  
Jian Liu
Keyword(s):  
Thermal Conductivity ◽  
Power Factor ◽  
High Power ◽  
Density Functional ◽  
Lattice Thermal Conductivity ◽  
Phonon Transport ◽  
Thermoelectric Performance ◽  
Boltzmann Transport ◽  
High Power Factor ◽  
P Type

In this work, we use first principles DFT calculations, anharmonic phonon scatter theory and Boltzmann transport method, to predict a comprehensive study on the thermoelectric properties as electronic and phonon transport of layered LaSe2 crystal. The flat-and-dispersive type band structure of LaSe2 crystal offers a high power factor. In the other hand, low lattice thermal conductivity is revealed in LaSe2 semiconductor, combined with its high power factor, the LaSe2 crystal is considered a promising thermoelectric material. It is demonstrated that p-type LaSe2 could be optimized to exhibit outstanding thermoelectric performance with a maximum ZT value of 1.41 at 1100K. Explored by density functional theory calculations, the high ZT value is due to its high Seebeck coefficient S, high electrical conductivity, and low lattice thermal conductivity .

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