Electrochemical deposition of bismuth telluride thick layers onto nickel

Lei, Chunhong; Ryder, Karl S.; Koukharenko, Elena; Burton, Matthew R.; Nandhakumar, Iris

doi:10.1016/j.elecom.2016.02.005

Cited by 18 publications

(14 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These layers become unstable as the layer thickness increases. For this reason, only a small number of studies have been successful in synthesizing thick films of BiTe and SbTe [3,14,15,16,21]. As shown in Figure 8a, although a 200-µm-thick film can be grown using the constant method at a high deposition rate of approximately 30 µm/h, only 20 µm of the thickness is actually of good quality (Figure 8b).…”

Section: Resultsmentioning

confidence: 99%

“…Many non-aqueous additives have been researched for Bi 2 Te 3 : ethylene glycol [ 6 , 7 ] dimethyl sulfoxide [ 8 , 9 ], ethanol [ 10 ], ionic liquids (choline chloride) [ 11 , 12 ], molten salt (AlCl 3 –NaCl–KCl) [ 13 ], and polyvinyl alcohol [ 14 ]. Additionally, the appearance of the Bi 2 Te 3 soluble anode is proven to enhance a homogeneous composition of deposited films in References [ 14 , 15 , 16 ]. In this work, another possibility of a deposition of thick and stable thermoelectric films has been demonstrated.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the amorphous material is easily crystallized during the pulsed deposition. By this method, without the necessity of using non-aqueous additives and a soluble anode, the Seebeck coefficients of synthesized Bi 2 Te 3 thick films are more improved than that of using high concentration electrolytes [ 5 ], and the same as using a soluble anode (~−80 µV/K) [ 15 , 16 ]. Additionally, this mechanism is successfully applied for not only N-type Bi 2 Te 3 but also P-type Sb 2 Te 3 thick films.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis and Evaluation of Thick Films of Electrochemically Deposited Bi2Te3 and Sb2Te3 Thermoelectric Materials

et al. 2017

View full text Add to dashboard Cite

This paper presents the results of the synthesis and evaluation of thick thermoelectric films that may be used for such applications as thermoelectric power generators. Two types of electrochemical deposition methods, constant and pulsed deposition with improved techniques for both N-type bismuth telluride (Bi2Te3) and P-type antimony telluride (Sb2Te3), are performed and compared. As a result, highly oriented Bi2Te3 and Sb2Te3 thick films with a bulk-like structure are successfully synthesized with high Seebeck coefficients and low electrical resistivities. Six hundred-micrometer-thick Bi2Te3 and 500-µm-thick Sb2Te3 films are obtained. The Seebeck coefficients for the Bi2Te3 and Sb2Te3 films are −150 ± 20 and 170 ± 20 µV/K, respectively. Additionally, the electrical resistivity for the Bi2Te3 is 15 ± 5 µΩm and is 25 ± 5 µΩm for the Sb2Te3. The power factors of each thermoelectric material can reach 15 × 10−4 W/mK2 for Bi2Te3 and 11.2 × 10−4 W/mK2 for Sb2Te3.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and Evaluation of Thick Films of Electrochemically Deposited Bi2Te3 and Sb2Te3 Thermoelectric Materials

et al. 2017

View full text Add to dashboard Cite

show abstract

“…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

View full text Add to dashboard Cite

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.

show abstract

“…However, the halfquantitative results did give the information of the change in compositions caused by both the organic-inorganic complex formation and the heat treatment. In view of the accuracy of EDS and XRD on quantitative elemental analysis, earlier studies showed that the difference in the results between the two techniques is less than 2% based on the Bi-Te atomic ratio measurements for the bulk alloys, particles, and/or thin films [39][40][41][42][43][44][45][46][47][48][49].…”

Section: Energy Conversion Propertymentioning

confidence: 99%

Electrohydrodynamic Casting Bismuth Telluride Microparticle-Loaded Carbon Nanofiber Composite Material With Multiple Sensing Functions

Gan

Chen

Gan

et al. 2017

Journal of Micro and Nano-Manufacturing

View full text Add to dashboard Cite

In this work, an electrohydrodynamic casting approach was used to manufacture a carbon nanofiber (CNF) composite material containing bismuth telluride (Bi2Te3) particles. A 10% polyacrylonitrile (PAN) polymer solution was taken as the precursor to generate nanofibers. Bismuth telluride microparticles were added into the polymer solution. The particle-containing solution was electrohydrodynamically cast onto a substrate to form a PAN-based nanofiber composite mat. High temperature heat treatment on the polymeric matrix composite mat in hydrogen atmosphere resulted in the formation of a microparticle-loaded CNF composite material. Scanning electron microscopic (SEM) analysis was conducted to observe the morphology and reveal the composition of the composite material. Energy conversion functions in view of converting heat into electricity, electromagnetic wave energy into heat, and photon energy into electricity were shown. Strong Seebeck effect, hyperthermia, and photovoltaics of the composite mat were found. In addition, the potential applications as sensors were discussed.

show abstract

Electrochemical deposition of bismuth telluride thick layers onto nickel

Cited by 18 publications

References 18 publications

Synthesis and Evaluation of Thick Films of Electrochemically Deposited Bi2Te3 and Sb2Te3 Thermoelectric Materials

Synthesis and Evaluation of Thick Films of Electrochemically Deposited Bi2Te3 and Sb2Te3 Thermoelectric Materials

Pulse electrodeposited bismuth-tellurium superlattices with controllable bismuth content

Electrohydrodynamic Casting Bismuth Telluride Microparticle-Loaded Carbon Nanofiber Composite Material With Multiple Sensing Functions

Contact Info

Product

Resources

About