An enhancement of thermoelectric performance in Na/Cd co-doped β-Zn4Sb3 prepared by NaCl flux

Zheng, Jie; Chen, Jiali; Tang, Yu; Shen, Kaiyuan; He, Baihua; Shen, Lanxian; Ge, Wen; Yang, Peizhi; Deng, Shukang

doi:10.1016/j.jssc.2021.122754

Cited by 3 publications

(3 citation statements)

References 37 publications

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“…A large number of studies have also been done on complicated crystal structures, notably Zintl phases, where various compounds from this family, such as Zn 4 Sb 3 [63,64] or Yb 14 MnSb 11 , [65] has exhibited strong P-type characteristics.…”

Section: Advanced Materialsmentioning

confidence: 99%

Review on Thermoelectric Generators (TEG) and their applications: Progress, Challenges, and future prospects

Radouane¹

2022

Chinese Phys. B

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Our community is currently dealing with issues such as rising electricity costs, pollution, and global warming. Scientists are working to improve energy harvesting-based power generators in order to reduce their impacts. The Seebeck effect has been used to illustrate the capacity of thermoelectric generators (TEGs) to directly convert thermal energy to electrical energy. They are also ecologically beneficial since they do not include chemical products, function quietly because they lack mechanical structures and/or moving components, and may be built using different fabrication technologies such as 3D printing, silicon technology, and screen printing etc. TEGs are also position-independent, have a long operational lifetime, and can be integrated into bulk and flexible devices. This review gives further in investigation of TEGs, beginning with a full discussion of their operating principle, kinds, materials utilized, figure of merit, and improvement approaches, which include various thermoelectric material arrangements and utilised technologies. This paper also discusses the use of TEGs in a variety of disciplines such as automobile and biomedical.

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Section: Advanced Materialsmentioning

confidence: 99%

Review on Thermoelectric Generators (TEG) and their applications: Progress, Challenges, and future prospects

Radouane¹

2022

Chinese Phys. B

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“…Because of the ultralow thermal conductivity (<1 W m –1 K –1 ) and the optimal carrier concentration (10 18 to 10 19 cm 3 ) of β-Zn 4 Sb 3 , it is harder to enhance the thermoelectric properties in monodoped β-Zn 4 Sb 3. , Meanwhile, β-Zn 4 Sb 3 is prone to decomposition at high temperatures and leads to the deposition of metallic Zn and deviations in the composition of the sample, so the inferior thermal stability restricts its practical application. , In summary, combining the current shortcomings of β-Zn 4 Sb 3 and earlier work of our group, , in this work, we synthesized a series of Na/Ga double-doped β-Zn 4 Sb 3 crystals via the NaCl flux method, and thermoelectric properties; also, the high-temperature thermal stability is deeply researched.…”

Section: Introductionmentioning

confidence: 98%

“…The phenomenon of κ L values increasing after doping is also reported in the related literature. 36,48,49 To be clear about the impact of Ga doping on the κ L value of β-Zn 4 Sb 3 , suppose that the Umklapp phonon scattering mechanism is the leading phonon scattering mechanism, and the κ L can be represented by 50 i k j j j j y…”

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confidence: 99%

High Thermoelectric Performance and Oxidation Resistance of (Na, Ga) Codoped β-Zn₄Sb₃ Thermoelectric Materials Prepared by the NaCl Flux

Zheng

Tang

Xiang

et al. 2023

Crystal Growth & Design

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β-Zn 4 Sb 3 is a promising thermoelectric (TE) material, as it contains low-cost and environment-friendly elements. However, its application has long been limited due to the lower figure of merit (ZT), poor mechanical properties, and inferior thermodynamic stability. In this research, we successfully synthesized Na/Ga codoped β-Zn 4 Sb 3 with high thermoelectric performance and stability. The power factor (PF) value of the Ga-doped sample is significantly improved by optimizing carrier concentration, the maximum value of 2.28 × 10 −3 W m −1 K −2 is obtained at 690 K, and the maximum ZT reaches 1.73 at 690 K for the Zn 4.1 Sb 3 (NaCl) 7 Ga 0.12 sample. Moreover, the TG-DSC and oxidation resistance tests show that Na and Ga codoped β-Zn 4 Sb 3 possess good stability. This work provides an attractive method for improving the thermoelectric properties and stability of β-Zn 4 Sb 3 through diatomic doping.

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Power factor enhancement of β-Zn4Sb3-InSb composites via arrays of p-n junction: Mixing p-type and n-type thermoelectric materials

Sidharth,

Paulraj,

Lourdhusamy

et al. 2024

Journal of the European Ceramic Society

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An enhancement of thermoelectric performance in Na/Cd co-doped β-Zn4Sb3 prepared by NaCl flux

Cited by 3 publications

References 37 publications

Review on Thermoelectric Generators (TEG) and their applications: Progress, Challenges, and future prospects

Review on Thermoelectric Generators (TEG) and their applications: Progress, Challenges, and future prospects

High Thermoelectric Performance and Oxidation Resistance of (Na, Ga) Codoped β-Zn₄Sb₃ Thermoelectric Materials Prepared by the NaCl Flux

Power factor enhancement of β-Zn4Sb3-InSb composites via arrays of p-n junction: Mixing p-type and n-type thermoelectric materials

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An enhancement of thermoelectric performance in Na/Cd co-doped β-Zn4Sb3 prepared by NaCl flux

Cited by 3 publications

References 37 publications

Review on Thermoelectric Generators (TEG) and their applications: Progress, Challenges, and future prospects

Review on Thermoelectric Generators (TEG) and their applications: Progress, Challenges, and future prospects

High Thermoelectric Performance and Oxidation Resistance of (Na, Ga) Codoped β-Zn4Sb3 Thermoelectric Materials Prepared by the NaCl Flux

Power factor enhancement of β-Zn4Sb3-InSb composites via arrays of p-n junction: Mixing p-type and n-type thermoelectric materials

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High Thermoelectric Performance and Oxidation Resistance of (Na, Ga) Codoped β-Zn₄Sb₃ Thermoelectric Materials Prepared by the NaCl Flux