A new rapid synthesis of thermoelectric Sb2Te3 ingots using selective laser melting 3D printing

Shi, Jianxu; Chen, Xiaoming; Wang, Wanjun; Chen, Hualing

doi:10.1016/j.mssp.2020.105551

Cited by 19 publications

(7 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In all samples, at about 397 K a small weight loss of 3% was noticed, which is due to the removal of adsorbed water vapors. 50 Further, a major second step weight loss was observed at 738–883 K, which is attributed to the vaporization of Te and melting of Sb 2 Te 3 51 − 53 in all prepared samples. In both cases, after neglecting the water loss, TGA curves can be attributed as a single-stage decomposition.…”

Section: Resultsmentioning

confidence: 84%

Effect of (Sm, In) Doping on the Electrical and Thermal Properties of Sb₂Te₃ Microstructures

et al. 2023

View full text Add to dashboard Cite

Doped Sb2Te3 narrow-band-gap semiconductors have been attracting considerable attention for different electronic and thermoelectric applications. Trivalent samarium (Sm)- and indium (In)-doped Sb2Te3 microstructures have been synthesized by the economical solvothermal method. Powder X-ray diffraction (PXRD) was used to verify the synthesis of single-phase doped and undoped Sb2Te3 and doping of Sm and In within the crystal lattice of Sb2Te3. Further, the morphology, structure elucidation, and stability have been investigated systematically by scanning electron microscopy (SEM), Raman analysis, and thermogravimetric analysis (TGA). These analyses verified the successful synthesis of hexagonal undoped Sb2Te3 (AT) and (Sm, In)-doped Sb2Te3 (SAT, IAT) microstructures. Moreover, the comparison of dielectric parameters, including dielectric constant, dielectric loss, and tan loss of AT, SAT, and IAT, was done in detail. An increment in the electrical conductivities, both AC and DC, from 1.92 × 10–4 to 4.9 × 10–3 Ω–1 m–1 and a decrease in thermal conductivity (0.68–0.60 W m–1 K–1) were observed due to the doping by trivalent (Sm, In) dopants. According to our best knowledge, the synthesis and dielectric properties of (Sm, In)-doped and undoped Sb2Te3 in comparison with their electrical properties and thermal conductivity have not been reported earlier. This implies that appropriate doping with (Sm, In) in Sb2Te3 is promising to enhance the electronic and thermoelectric behavior.

show abstract

Section: Resultsmentioning

confidence: 84%

Effect of (Sm, In) Doping on the Electrical and Thermal Properties of Sb₂Te₃ Microstructures

et al. 2023

View full text Add to dashboard Cite

show abstract

“…This allowed for a fabrication technique that required less time to complete since the TE alloy would be created simultaneously when the component was being manufactured. Later, Shi et al [ 200 ] employed this method to laser scan a pseudo‐homogeneous mixture of various elemental powders of Sb and Te twice at scan rates of 200–300 mm s −1 , 60–100 W laser power, and 50 μm hatch spacing. The components had a high relative density of 99.91% and a ZT of 0.4 at 250 °C, according to an X‐ray diffraction analysis, as well as the atomic ratios that were essentially stoichiometric.…”

Section: Microadditive Manufacturing Of 3d Microarchitected Thermoele...mentioning

confidence: 99%

“…[ 202 ] Powder bed fusion can also be utilized to create TE material from its component parts without significantly deviating from the intended TE alloy's stoichiometry. [ 200 ] Phonon scattering can make the Seebeck coefficients bigger and the thermal conductivity worse because the microstructure isn't uniform and the grains are more likely to be aligned along the temperature gradient. [ 203 ] However, high temperatures might cause TE materials to decompose during powder bed fusion.…”

Section: Microadditive Manufacturing Of 3d Microarchitected Thermoele...mentioning

confidence: 99%

Design and Fabrication of Microarchitected Thermoelectric Generators: Prospects and Challenges

Asadikouhanjani,

Zolfagharian,

Bodaghi

2024

Adv Eng Mater

View full text Add to dashboard Cite

Solid state devices called thermoelectric generators (TEGs) can convert waste heat from production into electrical power. For emerging devices like thermally integrated energy‐autonomous devices, medicinal equipment, and Internet of things, µ‐TEGs are essential because they can produce power even from minor temperature gradients. An review of the history and state‐of‐the‐art of µ‐TEGs is provided in this article. In addition, it concentrates on highly effective approaches for achieving high‐performance miniature vertical thermoelectric (TE) devices. Design and optimizing methodologies for vertical µ‐TEGs are also investigated since their output power, efficiency and integrity are critical to the architecture. Improving electrical and mechanical performance may be achieved via optimization methods, including multi‐objective and finite‐dimensional optimization in three dimensions (3D). Additionally, the idea and latest advancements of employing the 3D micro‐additive manufacturing (micro‐AM) technique for producing µ‐TEGs are discussed, along with their advantages and disadvantages. The concept of “micro architected TEGs” as opposed to “µ ‐TEGs” is provided by the new paradigm of digital additive manufacturing and architected material concept, which also broadens the scope of material adaptability and innovative structural design. The difficulties experienced are summed up when increasing the output power of µ‐TEG and the prediction of future trends is the final step.This article is protected by copyright. All rights reserved.

show abstract

“…Several studies have explored the fabrication of TE materials using SLM and SLS [34,[71][72][73][74][75][76][77][78]. The SLM technology involves the precise control of a high-energy laser beam for rapidly melting and solidifying powder layers, enabling the creation of bulk materials through the stacking of layers [79].…”

Section: Powder Bed Fusionmentioning

confidence: 99%

Recent progress in 3D printing of Bi₂Te₃-based thermoelectric materials and devices

Yang,

Han,

Son

2024

J. Phys. Energy

View full text Add to dashboard Cite

With growing concerns about the depletion of fossil fuels and climate change, there is an urgent global demand for the development of sustainable and renewable energy sources. The thermoelectric technology, which converts waste heat into electricity, presents a unique opportunity to ensure a sustainable electric supply and enhance energy efficiency without incurring additional costs. Recently, the utilization of 3D printing technology for fabricating thermoelectric materials has attracted tremendous interest because of the simplicity of design of power generators and the potential for economical manufacturing. This study focuses on research related to Bi2Te3 thermoelectric materials produced using 3D printing, and it highlights the fundamental principles, advantages, challenges, and recent remarkable advancements associated with this manufacturing approach. Furthermore, we explored various device applications, including shape-conformable wearable, and micro devices with printed thermoelectric materials. Finally, we discuss the promising research directions and prospects for industrialization in 3D-printed thermoelectric materials.

show abstract

A new rapid synthesis of thermoelectric Sb2Te3 ingots using selective laser melting 3D printing

Cited by 19 publications

References 35 publications

Effect of (Sm, In) Doping on the Electrical and Thermal Properties of Sb₂Te₃ Microstructures

Effect of (Sm, In) Doping on the Electrical and Thermal Properties of Sb₂Te₃ Microstructures

Design and Fabrication of Microarchitected Thermoelectric Generators: Prospects and Challenges

Recent progress in 3D printing of Bi₂Te₃-based thermoelectric materials and devices

Contact Info

Product

Resources

About

A new rapid synthesis of thermoelectric Sb2Te3 ingots using selective laser melting 3D printing

Cited by 19 publications

References 35 publications

Effect of (Sm, In) Doping on the Electrical and Thermal Properties of Sb2Te3 Microstructures

Effect of (Sm, In) Doping on the Electrical and Thermal Properties of Sb2Te3 Microstructures

Design and Fabrication of Microarchitected Thermoelectric Generators: Prospects and Challenges

Recent progress in 3D printing of Bi2Te3-based thermoelectric materials and devices

Contact Info

Product

Resources

About

Effect of (Sm, In) Doping on the Electrical and Thermal Properties of Sb₂Te₃ Microstructures

Effect of (Sm, In) Doping on the Electrical and Thermal Properties of Sb₂Te₃ Microstructures

Recent progress in 3D printing of Bi₂Te₃-based thermoelectric materials and devices