Review of experimental approaches for improving zT of thermoelectric materials

Ma, Zhe; Wei, Jiangtao; Song, Peng; Zhang, Mingliang; Yang, Liangliang; Ma, Jing; Li, Wen; Yang, Fuhua; Wang, Xiaodong

doi:10.1016/j.mssp.2020.105303

Cited by 117 publications

(47 citation statements)

References 250 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It can be seen that the predicted values of BiSbSe 3 are below 1.2 W m À1 K À1 at 300 K, which is pretty low in thermoelectric materials. 47,48 However, the experimental values are even much lower at low temperatures though the agreement between theory and experiment is improved at high temperatures. The large discrepancy in k L at low temperatures may not be entirely attributed to grain boundary scattering, since this effect is usually small in materials with intrinsically low k L , where heat carrying phonons have smaller mean free paths than the size of the grains.…”

Section: Low Lattice Thermal Conductivitiesmentioning

confidence: 96%

Enhanced thermoelectric performance in Sb–Br codoped Bi₂Se₃ with complex electronic structure and chemical bond softening

Zhong

2022

RSC Adv.

View full text Add to dashboard Cite

show abstract

Section: Low Lattice Thermal Conductivitiesmentioning

confidence: 96%

Enhanced thermoelectric performance in Sb–Br codoped Bi₂Se₃ with complex electronic structure and chemical bond softening

Zhong

2022

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Binary copper and silver chalcogenides have excellent thermoelectric characteristics, which continue to be the subjects of intense research [2,4,82,83,109,139,[164][165][166][167]. Over the past 5 years, as examples, we can mention the works [12,14,17,31,39,99,106,129,168,169] on Cu 2-δ S, the works [15,16,165,167,[170][171][172][173][174][175][176][177][178] on Cu 2−δ Se, the works [110,[179][180][181][182][183][184][185] on Cu 2−δ Te, the works [186][187][188][189][190] on Ag 2+δ Se, the works [191][192]…”

Section: Seebeck Coefficient and Thermal Conductivity 321 Seebeck Effectmentioning

confidence: 99%

Some Thermoelectric Phenomena in Copper Chalcogenides Replaced by Lithium and Sodium Alkaline Metals

et al. 2021

View full text Add to dashboard Cite

This review presents thermoelectric phenomena in copper chalcogenides substituted with sodium and lithium alkali metals. The results for other modern thermoelectric materials are presented for comparison. The results of the study of the crystal structure and phase transitions in the ternary systems Na-Cu-S and Li-Cu-S are presented. The main synthesis methods of nanocrystalline copper chalcogenides and its alloys are presented, as well as electrical, thermodynamic, thermal, and thermoelectric properties and practical application. The features of mixed electron–ionic conductors are discussed. In particular, in semiconductor superionic copper chalcogenides, the presence of a “liquid-like phase” inside a “solid” lattice interferes with the normal propagation of phonons; therefore, superionic copper chalcogenides have low lattice thermal conductivity, and this is a favorable factor for the formation of high thermoelectric efficiency in them.

show abstract

“…For example, the carrier concentration has the opposite effect on Seebeck coefficient and electrical conductivity: the decrease in carrier concentration increases the Seebeck coefficient, but meanwhile, it leads to a decrease in electrical conductivity, and vice versa. On the other hand, toxic, high price, and low earth content are other factors restricting the development of thermoelectric materials [1,2].…”

Section: Introductionmentioning

confidence: 99%

Exceptional Thermoelectric Properties of Bilayer GeSe: First Principles Calculation

et al. 2022

View full text Add to dashboard Cite

The geometry structures, vibrational, electronic, and thermoelectric properties of bilayer GeSe, bilayer SnSe, and van der Waals (vdW) heterostructure GeSe/SnSe are investigated by combining the first-principles calculations and semiclassical Boltzmann transport theory. The dynamical stability of the considered structures are discussed with phonon dispersion. The phonon spectra indicate that the bilayer SnSe is a dynamically unstable structure, while the bilayer GeSe and vdW heterostructure GeSe/SnSe are stable. Then, the electronic structures for the bilayer GeSe and vdW heterostructure GeSe/SnSe are calculated with HSE06 functional. The results of electronic structures show that the bilayer GeSe and vdW heterostructure GeSe/SnSe are indirect band gap semiconductors with band gaps of 1.23 eV and 1.07 eV, respectively. The thermoelectric properties, including electrical conductivity, thermal conductivity, Seebeck coefficient, power factor, and figure of merit (ZT) are calculated with semiclassical Boltzmann transport equations (BTE). The results show that the n-type bilayer GeSe is a promising thermoelectric material.

show abstract

Review of experimental approaches for improving zT of thermoelectric materials

Cited by 117 publications

References 250 publications

Enhanced thermoelectric performance in Sb–Br codoped Bi₂Se₃ with complex electronic structure and chemical bond softening

Enhanced thermoelectric performance in Sb–Br codoped Bi₂Se₃ with complex electronic structure and chemical bond softening

Some Thermoelectric Phenomena in Copper Chalcogenides Replaced by Lithium and Sodium Alkaline Metals

Exceptional Thermoelectric Properties of Bilayer GeSe: First Principles Calculation

Contact Info

Product

Resources

About

Review of experimental approaches for improving zT of thermoelectric materials

Cited by 117 publications

References 250 publications

Enhanced thermoelectric performance in Sb–Br codoped Bi2Se3 with complex electronic structure and chemical bond softening

Enhanced thermoelectric performance in Sb–Br codoped Bi2Se3 with complex electronic structure and chemical bond softening

Some Thermoelectric Phenomena in Copper Chalcogenides Replaced by Lithium and Sodium Alkaline Metals

Exceptional Thermoelectric Properties of Bilayer GeSe: First Principles Calculation

Contact Info

Product

Resources

About

Enhanced thermoelectric performance in Sb–Br codoped Bi₂Se₃ with complex electronic structure and chemical bond softening

Enhanced thermoelectric performance in Sb–Br codoped Bi₂Se₃ with complex electronic structure and chemical bond softening