Thermoelectric characteristics of β-Ag2Se1+x prepared via a combined rapid mechano-thermal approach
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00604024" target="_blank" >RIV/68378271:_____/24:00604024 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0361380" target="_blank" >https://hdl.handle.net/11104/0361380</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/inorganics12120334" target="_blank" >10.3390/inorganics12120334</a>
Alternative languages
Result language
angličtina
Original language name
Thermoelectric characteristics of β-Ag2Se1+x prepared via a combined rapid mechano-thermal approach
Original language description
This study investigates the thermoelectric properties of Se-rich β-Ag2Se synthesized via a mechanochemical method followed by spark plasma sintering (SPS) in less than 30 min of the total reaction time. Importantly, only a short 10 min milling process followed by appropriate SPS was enough to produce single-phase Ag2Se1+x samples with varying selenium content (where x = 0, 0.01, 0.02, 0.04). The introduction of excess selenium significantly influenced the thermoelectric performance, optimizing the carrier concentration during synthesis and resulting in substantial thermoelectric improvements. The sample with nominal composition Ag2Se1.01 exhibited a high dimensionless figure-of-merit (ZT) >0.9 at 385 K, which is nearly six times higher than the reference sample (β-Ag2Se). Our findings bring valuable insight into the technology of optimization of thermoelectric characteristics of Se-rich β-Ag2Se, highlighting its potential for applications in thermoelectric devices.n
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Inorganic
ISSN
2304-6740
e-ISSN
2304-6740
Volume of the periodical
12
Issue of the periodical within the volume
12
Country of publishing house
CH - SWITZERLAND
Number of pages
13
Pages from-to
334
UT code for WoS article
001385671300001
EID of the result in the Scopus database
2-s2.0-85213462422