Enhancing the Thermoelectric Properties of the Electroplated Bi 2 Te 3  Films by Tuning the Pulse Off-to-on Ratio

Fu, Qiang; Zhang, Wenhua; Yang, Bin; Li, Jingze; Ziółkowski, Pawel; Mueller, E.; Xu, Dahai

doi:10.1016/j.electacta.2015.07.164

Cited by 26 publications

(16 citation statements)

References 35 publications

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“…Pulse periodic potential control was used in this work to maintain uniform mass transport conditions over the whole deposition period and to control metallic bismuth oxidation, while preventing bilayers (Bi 2 ) anodic oxidation. Additionally, pulse deposition favors high substrate-film adhesion and proper film solidity [11][12][13][14][15][16]. Bi-Te binary phase diagram [17] (Figure 1) predicts the formation of a series of stoichiometric compounds.…”

Section: Introductionmentioning

confidence: 99%

Pulse electrodeposited bismuth-tellurium superlattices with controllable bismuth content

Bakavets

Aniskevich

Yakimenko

et al. 2020

Journal of Power Sources

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Keywords: Bismuth telluride; bismuth; superlattice; thermoelectric materials; electrodeposition Superlattice structures of (Bi 2 ) m (Bi 2 Te 3 ) n series with controllable Bi mole fraction from 0.41 to 0.71 are electrodeposited in pulse potentiostatic mode from acidic electrolytes containing Bi(NO 3 ) 3 and TeO 2 as precursors. Two valence states of bismuth in superlattices are identified by X-ray photoelectron spectroscopy (XPS). One of those states is attributed to interlayered Bi 0 which is present in (Bi 2 ) m (Bi 2 Te 3 ) n superlattice in the form of biatomic layers between bismuth telluride quintuples. X-ray difraction (XRD) analysis and density functional theory (DFT) calculations indicate an increase in subcell parameter a sub and decrease in subcell parameter c sub with the increase of Bi mole fraction. Biatomic layers of Bi 0 are identified with cyclic voltammetry by characteristic anodic peak between potentials of metallic bismuth and Bi 2 Te 3 oxidation. The selective oxidation of Bi-bilayers in (Bi 2 ) m (Bi 2 Te 3 ) n superlattice at the potential of the anodic peak results in the product corresponding to Bi 2 Te 3 by stoichiometry, but having an expanded crystal structure. Superlattices with controllable Bi mole fraction and Bi 2 Te 3 with "memory effect" may be of interest for design of new thermoelectric materials with controllable parameters.

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Section: Introductionmentioning

confidence: 99%

Pulse electrodeposited bismuth-tellurium superlattices with controllable bismuth content

Bakavets

Aniskevich

Yakimenko

et al. 2020

Journal of Power Sources

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“…(Caballero-Calero et al, 2015). Zhou et al (2015) synthesized Bi 2 Te 3 thin films by the pulsed electrodeposition method in the solution consisting of 40 mM HTeO 2 + , 30 mM Bi 3+ and 1.7 M HNO 3 . The effect of deposition parameters on the composition and microstructure was investigated.…”

Section: Electrodeposition Of Bismuth Telluride (Bi 2 Te 3 ) Based Materials Including Bite Bisbte Bitese and Bisbtesementioning

confidence: 99%

“…Additionally, larger pulse off-to-on ratio would enhance the ZT of Bi 2 Te 3 films owing to suppressing the thermal conductivity and improving the Seebeck coefficient. The highest ZT value was 0.16 obtained at a pulse off-to-on ratio of 50 (Zhou et al, 2015). Li et al (2015) reported the electrodeposition of BiSbTe nanowires in the electrolyte containing 15 mM HTeO 2 + , 40 mM SbO + , 2 mM Bi 3+ , 0.3 M tartaric acid and 1 M HNO 3 .…”

Section: Electrodeposition Of Bismuth Telluride (Bi 2 Te 3 ) Based Materials Including Bite Bisbte Bitese and Bisbtesementioning

confidence: 99%

Comprehensive Review on Thermoelectric Electrodeposits: Enhancing Thermoelectric Performance Through Nanoengineering

Wu¹,

Kim²,

Lim³

et al. 2021

Front. Chem.

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Thermoelectric devices based power generation and cooling systemsystem have lot of advantages over conventional refrigerator and power generators, becausebecause of solid-state devicesdevices, compact size, good scalability, nono-emissions and low maintenance requirement with long operating lifetime. However, the applications of thermoelectric devices have been limited owingowing to their low energy conversion efficiency. It has drawn tremendous attention in the field of thermoelectric materials and devices in the 21st century because of the need of sustainable energy harvesting technology and the ability to develop higher performance thermoelectric materials through nanoscale science and defect engineering. Among various fabrication methods, electrodeposition is one of the most promising synthesis methods to fabricate devices because of its ability to control morphology, composition, crystallinity, and crystal structure of materials through controlling electrodeposition parameters. Additionally, it is an additive manufacturing technique with minimum waste materials that operates at near room temperature. Furthermore, its growth rate is significantly higher (i.e., a few hundred microns per hour) than the vacuum processes, which allows device fabrication in cost effective matter. In this paper, the latest development of various electrodeposited thermoelectric materials (i.e., Te, PbTe, Bi2Te3 and their derivatives, BiSe, BiS, Sb2Te3) in different forms including thin films, nanowires, and nanocomposites were comprehensively reviewed. Additionally, their thermoelectric properties are correlated to the composition, morphology, and crystal structure.

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“…Therefore, the challenge is three-fold; lighter structures, more efficient TE (heat to electricity) conversion and cheaper TE materials and devices are all needed. In recent years, to overcome the high weight and cost of TE materials and increase their specific power, researchers have concentrated their attention on fabricating films made from TE materials, using different methods, and studying their particular TE properties [4][5][6] . Bi2Te3 is one of the most studied TE materials due to its high TE performance at room temperature 7 .…”

Section: Introductionmentioning

confidence: 99%

Suspension Characteristics and Electrophoretic Deposition ofp-Type Bi₂Te₃Films for Thermoelectric Applications

Talebi

Ghomashchi

Talemi

et al. 2018

J. Electrochem. Soc.

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Enhancing the Thermoelectric Properties of the Electroplated Bi 2 Te 3 Films by Tuning the Pulse Off-to-on Ratio

Cited by 26 publications

References 35 publications

Pulse electrodeposited bismuth-tellurium superlattices with controllable bismuth content

Pulse electrodeposited bismuth-tellurium superlattices with controllable bismuth content

Comprehensive Review on Thermoelectric Electrodeposits: Enhancing Thermoelectric Performance Through Nanoengineering

Suspension Characteristics and Electrophoretic Deposition ofp-Type Bi₂Te₃Films for Thermoelectric Applications

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Enhancing the Thermoelectric Properties of the Electroplated Bi 2 Te 3 Films by Tuning the Pulse Off-to-on Ratio

Cited by 26 publications

References 35 publications

Pulse electrodeposited bismuth-tellurium superlattices with controllable bismuth content

Pulse electrodeposited bismuth-tellurium superlattices with controllable bismuth content

Comprehensive Review on Thermoelectric Electrodeposits: Enhancing Thermoelectric Performance Through Nanoengineering

Suspension Characteristics and Electrophoretic Deposition ofp-Type Bi2Te3Films for Thermoelectric Applications

Contact Info

Product

Resources

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Suspension Characteristics and Electrophoretic Deposition ofp-Type Bi₂Te₃Films for Thermoelectric Applications