Tailoring of thermoelectric properties in Bi2Te3 by varying the sintering temperature

Tewary, Arpan; Bhatt, Ranu; Singh, Ajay; Bhattacharya, Shovit; Bhatt, Pramod; Jha, P.; Basu, Ranita; Sarkar, Partha Sarathi; Muthe, K. P.

doi:10.1063/5.0017251

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…The resulting consolidated ingots are ground into a powder and made into pellets using hot-pressing or spark plasma sintering (SPS) to prepare TE components. The mechanical alloying method has also been adopted to synthesize similar TE materials. − Here, powder elements are mixed in a stoichiometric ratio and ground with a high-energy ball mill for several hours. The milling time and rotation speed of the jar containing balls and the ingredients depend on the formation energies of the alloys to be prepared.…”

Section: Introductionmentioning

confidence: 99%

Photonic Curing Enables Ultrarapid Processing of Highly Conducting β-Cu_2−δSe Printed Thermoelectric Films in Less Than 10 ms

et al. 2022

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It has been a challenge to obtain high electrical conductivity in inorganic printed thermoelectric (TE) films due to their high interfacial resistance. In this work, we report a facile synthesis process of Cu–Se-based printable ink for screen printing. A highly conducting TE β-Cu 2−δ Se phase forms in the screen-printed Cu–Se-based film through ≤10 ms sintering using photonic-curing technology, minimizing the interfacial resistance. This enables overcoming the major challenges associated with printed thermoelectrics: (a) to obtain the desired phase, (b) to attain high electrical conductivity, and (c) to obtain flexibility. Furthermore, the photonic-curing process reduces the synthesis time of the TE β-Cu 2−δ Se film from several days to a few milliseconds. The sintered film exhibits a remarkably high electrical conductivity of ∼3710 S cm –1 with a TE power factor of ∼100 μW m –1 K –2 . The fast processing and high conductivity of the film could also be potentially useful for different printed electronics applications.

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Section: Introductionmentioning

confidence: 99%

Photonic Curing Enables Ultrarapid Processing of Highly Conducting β-Cu_2−δSe Printed Thermoelectric Films in Less Than 10 ms

et al. 2022

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Impact of melt solidification rate on structural and thermoelectric properties of n-type Bi2Te3 alloy

et al. 2022

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Tailoring of thermoelectric properties in Bi2Te3 by varying the sintering temperature

Cited by 2 publications

References 7 publications

Photonic Curing Enables Ultrarapid Processing of Highly Conducting β-Cu_2−δSe Printed Thermoelectric Films in Less Than 10 ms

Photonic Curing Enables Ultrarapid Processing of Highly Conducting β-Cu_2−δSe Printed Thermoelectric Films in Less Than 10 ms

Impact of melt solidification rate on structural and thermoelectric properties of n-type Bi2Te3 alloy

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Tailoring of thermoelectric properties in Bi2Te3 by varying the sintering temperature

Cited by 2 publications

References 7 publications

Photonic Curing Enables Ultrarapid Processing of Highly Conducting β-Cu2−δSe Printed Thermoelectric Films in Less Than 10 ms

Photonic Curing Enables Ultrarapid Processing of Highly Conducting β-Cu2−δSe Printed Thermoelectric Films in Less Than 10 ms

Impact of melt solidification rate on structural and thermoelectric properties of n-type Bi2Te3 alloy

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Product

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Photonic Curing Enables Ultrarapid Processing of Highly Conducting β-Cu_2−δSe Printed Thermoelectric Films in Less Than 10 ms

Photonic Curing Enables Ultrarapid Processing of Highly Conducting β-Cu_2−δSe Printed Thermoelectric Films in Less Than 10 ms