2020
DOI: 10.1080/21870764.2020.1723197
|View full text |Cite
|
Sign up to set email alerts
|

Pre-oxidation effects on properties of bismuth telluride thermoelectric composites compacted by spark plasma sintering

Abstract: Research on harvesting alternative energy sources is of interest to meet human demands for energy while reducing environmental pollution caused by the extensive use of fossil fuels. Thermoelectric materials are a promising technology for converting heat into electricity. Among thermoelectric materials, the binary bismuth telluride system (Bi-Te) is widely used. To produce high-quality BiTe systems with low materials consumption, spark plasma sintering (SPS) is commonly applied. Because SPS is a fast low-temper… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

0
7
0

Year Published

2020
2020
2024
2024

Publication Types

Select...
8

Relationship

0
8

Authors

Journals

citations
Cited by 18 publications
(7 citation statements)
references
References 35 publications
0
7
0
Order By: Relevance
“…S8 in the ESM). The additional peaks located at 155.6 and 160.9 eV (Δ = 5.3 eV) can be assigned to metallic bismuth [60], originating from partial reduction of trivalent bismuth after exposure to X-ray. Similar behavior was often observed in other metal halide materials [61][62][63].…”
Section: Stability Of Da3bii6 In Dai Solutionmentioning
confidence: 99%
“…S8 in the ESM). The additional peaks located at 155.6 and 160.9 eV (Δ = 5.3 eV) can be assigned to metallic bismuth [60], originating from partial reduction of trivalent bismuth after exposure to X-ray. Similar behavior was often observed in other metal halide materials [61][62][63].…”
Section: Stability Of Da3bii6 In Dai Solutionmentioning
confidence: 99%
“…This is illustrated in Figure S6, Supporting Information, by the presence of metal‐bonded oxygen species in the O1s peak (530 eV), and the oxidized Bi component in Bi4f (159 eV), as well as oxidized Te species in the Te3d peak (576–577 eV). [ 45–48 ] The formation of this oxide was also detected by XRD (Figure S9, Supporting Information). The evolution of the surface oxidation throughout the fabrication process is represented in Figure S12, Supporting Information.…”
Section: Resultsmentioning
confidence: 90%
“…The main peak lies at ∼529.4 eV, which might be related to lattice oxygen from metal-oxide bonds in the sample. Two other peaks located at 530.7 and 532.2 eV might be associated with dangling bonds (O – ; O 2 – ) generated from surficial oxygen vacancies of Bi 2 O 2 Se and surface-absorbed oxygen severally . In Figure (b3), the Se 3d orbitals of displayed samples contain two characteristic peaks.…”
Section: Resultsmentioning
confidence: 96%