Integrating Band Structure Engineering with All‐Scale Hierarchical Structuring for High Thermoelectric Performance in PbTe System Article Swipe
Yanling Pei
,
Gangjian Tan
,
Dan Feng
,
Lei Zheng
,
Qing Tan
,
Xiaobing Xie
,
Shengkai Gong
,
Yue Chen
,
Jing‐Feng Li
,
Jiaqing He
,
Mercouri G. Kanatzidis
,
Li‐Dong Zhao
·
YOU?
·
· 2016
· Open Access
·
· DOI: https://doi.org/10.1002/aenm.201601450
YOU?
·
· 2016
· Open Access
·
· DOI: https://doi.org/10.1002/aenm.201601450
PbTe 1− x Se x ‐2%Na‐y%SrTe system is investigated and a high maximum ZT of 2.3 at 923 K for PbTe 0.85 Se 0.15 ‐2%Na‐4%SrTe is reported. This is achieved by performing electronic band structures modifications as well as all‐scale hierarchical structuring and combining the two effects. It is found that high ZTs in PbTe 0.85 Se 0.15 ‐2%Na‐4%SrTe are possible at all temperature from 300 to 873 K with an average ZT ave of 1.23. The high performance in PbTe 1− x Se x ‐2%Na‐y%SrTe can be achieved by either choosing PbTe‐2Na‐4SrTe or PbTe 0.85 Se 0.15 ‐2Na as a matrix. At room temperature the carrier mobility shows negligible variations as SrTe fraction is increased, however the lattice thermal conductivity is significantly reduced from ≈1.1 to ≈0.82 W m −1 K −1 when 5.0% SrTe is added, correspondingly, the lattice thermal conductivity at 923 K decreases from ≈0.59 to ≈0.43 W m− 1 K −1 . The power factor maxima of PbTe 1− x Se x ‐2Na‐4SrTe shift systematically to higher temperature with rising Se fractions due to bands divergence. The maximum power factors reach ≈27, ≈30, ≈31 μW cm −1 K −2 for the x = 0, 0.05, and 0.15 samples peak at 473, 573, and 623 K, respectively. The results indicate that ZT can be increased by synergistic integration of band structure engineering and all‐scale hierarchical architectures.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1002/aenm.201601450
- OA Status
- green
- Cited By
- 192
- References
- 56
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2531680335
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W2531680335Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1002/aenm.201601450Digital Object Identifier
- Title
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Integrating Band Structure Engineering with All‐Scale Hierarchical Structuring for High Thermoelectric Performance in PbTe SystemWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2016Year of publication
- Publication date
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2016-10-12Full publication date if available
- Authors
-
Yanling Pei, Gangjian Tan, Dan Feng, Lei Zheng, Qing Tan, Xiaobing Xie, Shengkai Gong, Yue Chen, Jing‐Feng Li, Jiaqing He, Mercouri G. Kanatzidis, Li‐Dong ZhaoList of authors in order
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https://doi.org/10.1002/aenm.201601450Publisher landing page
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YesWhether a free full text is available
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greenOpen access status per OpenAlex
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https://www.osti.gov/biblio/1397218Direct OA link when available
- Concepts
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Materials science, Thermoelectric effect, Electronic band, Electronic band structure, Condensed matter physics, Analytical Chemistry (journal), Thermodynamics, Band gap, Optoelectronics, Physics, Chromatography, ChemistryTop concepts (fields/topics) attached by OpenAlex
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192Total citation count in OpenAlex
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2025: 13, 2024: 22, 2023: 24, 2022: 21, 2021: 29Per-year citation counts (last 5 years)
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56Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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