Preparation and Thermoelectric Properties of Type-VIII Single-Crystalline SmxBa8−xGa16Sn30 Clathrate

Shen, Lanxian; Shen, Kaiyuan; Ge, Wen; Zheng, Jie; He, Baihua; Deng, Shukang

doi:10.1007/s11665-021-06521-6

Cited by 3 publications

(3 citation statements)

References 22 publications

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“…The Ga/Ge ratio affects the Seebeck coefficient: unfavourable values for x = 12-16 and favourable values for x = 17-20 [103]. For example, Saramat et al (2006) reported that, at 900K, the ZT value of Ba 8 Ga 16 Ge 30 produced by the Czochralski technique is 1.35 and reached approximately 1.63 at 1100 k. Recently, Shen et al (2022) synthesised Type-VIII single-crystalline Sm 0.75 Ba 6.25 Ga 16 Sn 30 Clathrate using the Sn-flux method. The result showed a high Seebeck coefficient and electrical conductivity at 300-600 K, leading to a ZT peak 1.31 at 457 K [104].…”

Section: Clathratesmentioning

confidence: 99%

“…For example, Saramat et al (2006) reported that, at 900K, the ZT value of Ba 8 Ga 16 Ge 30 produced by the Czochralski technique is 1.35 and reached approximately 1.63 at 1100 k. Recently, Shen et al (2022) synthesised Type-VIII single-crystalline Sm 0.75 Ba 6.25 Ga 16 Sn 30 Clathrate using the Sn-flux method. The result showed a high Seebeck coefficient and electrical conductivity at 300-600 K, leading to a ZT peak 1.31 at 457 K [104]. Detailed information about the clathrate and its application in TE can be found in [105].…”

Section: Clathratesmentioning

confidence: 99%

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Advancing Thermoelectric Materials: A Comprehensive Review Exploring the Significance of One-Dimensional Nano Structuring

et al. 2023

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Amidst the global challenges posed by pollution, escalating energy expenses, and the imminent threat of global warming, the pursuit of sustainable energy solutions has become increasingly imperative. Thermoelectricity, a promising form of green energy, can harness waste heat and directly convert it into electricity. This technology has captivated attention for centuries due to its environmentally friendly characteristics, mechanical stability, versatility in size and substrate, and absence of moving components. Its applications span diverse domains, encompassing heat recovery, cooling, sensing, and operating at low and high temperatures. However, developing thermoelectric materials with high-performance efficiency faces obstacles such as high cost, toxicity, and reliance on rare-earth elements. To address these challenges, this comprehensive review encompasses pivotal aspects of thermoelectricity, including its historical context, fundamental operating principles, cutting-edge materials, and innovative strategies. In particular, the potential of one-dimensional nanostructuring is explored as a promising avenue for advancing thermoelectric technology. The concept of one-dimensional nanostructuring is extensively examined, encompassing various configurations and their impact on the thermoelectric properties of materials. The profound influence of one-dimensional nanostructuring on thermoelectric parameters is also thoroughly discussed. The review also provides a comprehensive overview of large-scale synthesis methods for one-dimensional thermoelectric materials, delving into the measurement of thermoelectric properties specific to such materials. Finally, the review concludes by outlining prospects and identifying potential directions for further advancements in the field.

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Section: Clathratesmentioning

confidence: 99%

Section: Clathratesmentioning

confidence: 99%

Advancing Thermoelectric Materials: A Comprehensive Review Exploring the Significance of One-Dimensional Nano Structuring

et al. 2023

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“…As a result, scattering through local alloy disorder was reduced, and mobility increased [164]. [165]. Doping can introduce the positive impact on the electrical charge carrier concentration but can suppress the scattering effects from ionized impurities.…”

Section: Phonon-glass Electron Crystal (Pgec)mentioning

confidence: 99%

Physics and technology of thermoelectric materials and devices

Dadhich

Saminathan

Kumari

et al. 2023

J. Phys. D: Appl. Phys.

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The continuous depletion of fossil fuels and the increasing demand for eco-friendly and sustainable energy sources have prompted researchers to look for alternative energy sources. The loss of thermal energy in heat engines (100-350 ºC), coal-based thermal plants (150-700 ºC), heated water pumping in the geothermal process (150-700 ºC), and burning of petrol in the automobiles (150-250 ºC) in form of untapped waste-heat can be directly and/or reversibly converted into usable electricity by means of charge carriers (electrons or holes) as moving fluids using thermoelectric (TE) technology, which works based on typical Seebeck effect. The enhancement in TE conversion efficiency has been a key challenge because of the coupled relation between thermal and electrical transport of charge carriers in a given material. In this review, we have deliberated the physical concepts governing the materials to device performance as well as key challenges for enhancing the TE performance. Moreover, the role of crystal structure in the form of chemical bonding, crystal symmetry, order-disorder and phase transition on charge carrier transport in the material has been explored. Further, this review has also emphasized some insights on various approaches employed recently to improve the TE performance, such as, (i). carrier engineering via band engineering, low dimensional effects, and energy filtering effects and (ii). Phonon engineering via doping/alloying, nano-structuring, embedding secondary phases in the matrix and microstructural engineering. Wehave also briefed the importance of magnetic elements on thermoelectric properties of the selected materials and spin Seebeck effect. Furthermore, the design and fabrication of TE modules and their major challenges are also discussed. As, thermoelectric figure of merit, zT does not have any theoretical limitation, an ideal high performance thermoelectric device should consist of low-cost, eco-friendly, efficient, n- or p-type materials that operate at wide- temperature range and similar coefficients of thermal expansion, suitable contact materials, less electrical/ thermal losses and constant source of thermal energy. Overall, this review provides the recent physical concepts adopted and fabrication procedures of TE materials and device so as to improve the fundamental understanding and to develop a promising TE device.

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Effect of Li+ doping on the structural, transport, and thermoelectric properties of Bi1.2Pb0.33Sr1.54Ca2.06Co3Oy cobalties

Rao,

Bano,

Shukla

et al. 2023

J Mater Sci: Mater Electron

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Preparation and Thermoelectric Properties of Type-VIII Single-Crystalline SmxBa8−xGa16Sn30 Clathrate

Cited by 3 publications

References 22 publications

Advancing Thermoelectric Materials: A Comprehensive Review Exploring the Significance of One-Dimensional Nano Structuring

Advancing Thermoelectric Materials: A Comprehensive Review Exploring the Significance of One-Dimensional Nano Structuring

Physics and technology of thermoelectric materials and devices

Effect of Li+ doping on the structural, transport, and thermoelectric properties of Bi1.2Pb0.33Sr1.54Ca2.06Co3Oy cobalties

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