Processing High-Performance Thermoelectric Materials in a Green Way: A Proof of Concept in Cold Sintered PbTe<sub>0.94</sub>Se<sub>0.06</sub>

Lu, Xueping; Gao, Jie; Liu, Yongping; Huang, Jilong; Peng, Yan; Fan, Yuchi; Jiang, Wan

doi:10.1021/acsami.2c09065

Cited by 14 publications

(4 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At 300 K, the Lorenz numbers of β-PdS 2 , β-PdSe 2 , and β-PdTe 2 monolayers are 1.4–2.2, 1.4–2.5, and 1.5–2.3 × 10 –8 WΩ K –2 for n-type β-PdX 2 and 1.0–1.5, 1.6–2.2, and 1.3–2.6 × 10 –8 WΩ K –2 for p-type β-PdX 2 , respectively. In addition, L can be also estimated by the corresponding S values, − which is expressed by L = 1.5 + exp [ − | S | 116 ] …”

Section: Resultsmentioning

confidence: 99%

Two-Dimensional β-PdX₂ (X=S, Se, and Te) Monolayers with Promising Potential for Thermoelectric Applications

et al. 2022

View full text Add to dashboard Cite

Transition metal dichalcogenides have attracted extensive research attention due to their unique electronic, topological, and optical properties. Based on first-principles methods and Boltzmann transport theory, the thermoelectric performance of β-PdX 2 (X = S, Se, and Te) monolayers was comprehensively studied in this work. It is worth noting that the structural anisotropy of β-PdX 2 monolayers leads to obvious anisotropy of thermoelectric coefficients along the x and y directions. By investigating the thermal transport up to fourphonon scattering, it was found that the strong higher-order phonon scattering plays a decisive role in ultra-low lattice thermal conductivity of β-PdX 2 monolayers. A low lattice thermal conductivity of 3.4 (1.0) W m −1 K −1 is predicted for β-PdTe 2 at 300 K along the x (y) direction. In addition, due to the suitable band gap and high carrier mobility, the highest power factor of 25.7 mW m −1 K −2 is obtained in n-type β-PdX 2 monolayers, which is superior to many other two-dimensional thermoelectric materials. Finally, a maximum ZT of 5.2 is achieved for the n-type β-PdS 2 monolayer along the y direction at 600 K. Meanwhile, the maximum p-type ZT also reaches 3.3 along the y direction at 600 K in the β-PdSe 2 monolayer. Our results demonstrate that β-PdX 2 monolayers are promising candidates for two-dimensional thermoelectric materials with excellent conversion performance.

show abstract

Section: Resultsmentioning

confidence: 99%

Two-Dimensional β-PdX₂ (X=S, Se, and Te) Monolayers with Promising Potential for Thermoelectric Applications

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Consequently, research into substrate protection has become a critical need. The primary strategies for substrate protection encompass reducing the processing temperatures, innovating new low-temperature sintering techniques [ 163 , 164 ], and enhancing the thermal resistance of the substrates. The application of mechanical pressure during the thermal curing process enables the production of dense TE films with superior electrical conductivity at reduced processing temperatures.…”

Section: Ink-based Tegsmentioning

confidence: 99%

The Latest Advances in Ink-Based Nanogenerators: From Materials to Applications

Shao,

Chen,

et al. 2024

IJMS

View full text Add to dashboard Cite

Nanogenerators possess the capability to harvest faint energy from the environment. Among them, thermoelectric (TE), triboelectric, piezoelectric (PE), and moisture-enabled nanogenerators represent promising approaches to micro–nano energy collection. These nanogenerators have seen considerable progress in material optimization and structural design. Printing technology has facilitated the large-scale manufacturing of nanogenerators. Although inks can be compatible with most traditional functional materials, this inevitably leads to a decrease in the electrical performance of the materials, necessitating control over the rheological properties of the inks. Furthermore, printing technology offers increased structural design flexibility. This review provides a comprehensive framework for ink-based nanogenerators, encompassing ink material optimization and device structural design, including improvements in ink performance, control of rheological properties, and efficient energy harvesting structures. Additionally, it highlights ink-based nanogenerators that incorporate textile technology and hybrid energy technologies, reviewing their latest advancements in energy collection and self-powered sensing. The discussion also addresses the main challenges faced and future directions for development.

show abstract

“…[26][27] CSP was also applied to consolidate TE materials, such as Ca 3 Co 4 O 9 , Bi 2 Te 3 , and PbTe. [28][29][30] The idea of the CSP is based on a lowtemperature liquid phase sintering process assisted by easily approachable pressures (MPa), [31] as conceptualized in Figure 1. An appropriate amount of liquid solution was thoroughly mixed with the powders.…”

Section: Introductionmentioning

confidence: 99%

Porous Ag₂Se Fabricated by a Modified Cold Sintering Process with the Average zT Around Unity Near Room Temperature

Palaporn,

Pinitsoontorn,

Kurosaki

et al. 2023

Adv Materials Technologies

View full text Add to dashboard Cite

Silver selenide (Ag2Se) is a promising material for thermoelectric applications near room temperature. This work proposes a new fabrication route for bulk Ag2Se via a modified cold sintering process (mCSP) to enhance its figure‐of‐merit (zT). Unlike conventional CSP, mCSP employs thiol‐amine (TA) as a liquid medium that completely undissolves Ag2Se, leading to a free flow of the TA solution within interparticle channels. By sintering at temperatures above the boiling point of TA, the liquid evaporates, leaving behind a bulk Ag2Se material with a tube‐like porous structure (open pores). These induced defects strongly influence thermoelectric properties of Ag2Se, with a substantial increase in the Seebeck coefficient and decrease in electrical conductivity. The overall power factor of the mCSP sample with TA surpasses that of the control sample without TA, consistent with effective band modeling of Ag2Se. Moreover, the created micropores during mCSP effectively suppresses the thermal conductivity, leading to a maximum zT above 1.0 at 400 K by optimizing mCSP parameters. Importantly, the average zT within the 300–400 K range is around unity, representing one of the highest reported values. Further optimization of mCSP parameters can enhance average zT beyond unity, making Ag2Se more competitive with state‐of‐the‐art materials near room temperature.

show abstract

Processing High-Performance Thermoelectric Materials in a Green Way: A Proof of Concept in Cold Sintered PbTe_0.94Se_0.06

Cited by 14 publications

References 54 publications

Two-Dimensional β-PdX₂ (X=S, Se, and Te) Monolayers with Promising Potential for Thermoelectric Applications

Two-Dimensional β-PdX₂ (X=S, Se, and Te) Monolayers with Promising Potential for Thermoelectric Applications

The Latest Advances in Ink-Based Nanogenerators: From Materials to Applications

Porous Ag₂Se Fabricated by a Modified Cold Sintering Process with the Average zT Around Unity Near Room Temperature

Contact Info

Product

Resources

About

Processing High-Performance Thermoelectric Materials in a Green Way: A Proof of Concept in Cold Sintered PbTe0.94Se0.06

Cited by 14 publications

References 54 publications

Two-Dimensional β-PdX2 (X=S, Se, and Te) Monolayers with Promising Potential for Thermoelectric Applications

Two-Dimensional β-PdX2 (X=S, Se, and Te) Monolayers with Promising Potential for Thermoelectric Applications

The Latest Advances in Ink-Based Nanogenerators: From Materials to Applications

Porous Ag2Se Fabricated by a Modified Cold Sintering Process with the Average zT Around Unity Near Room Temperature

Contact Info

Product

Resources

About

Processing High-Performance Thermoelectric Materials in a Green Way: A Proof of Concept in Cold Sintered PbTe_0.94Se_0.06

Two-Dimensional β-PdX₂ (X=S, Se, and Te) Monolayers with Promising Potential for Thermoelectric Applications

Two-Dimensional β-PdX₂ (X=S, Se, and Te) Monolayers with Promising Potential for Thermoelectric Applications

Porous Ag₂Se Fabricated by a Modified Cold Sintering Process with the Average zT Around Unity Near Room Temperature