Abstract
AbstractOxides are of interest for thermoelectrics due to their high thermal stability, chemical inertness, low cost, and eco‐friendly constituting elements. Here, adopting a unique synthesis route via chemical co‐precipitation at strongly alkaline conditions, one of the highest thermoelectric performances for ZnO ceramics ( 21.5 µW cm−1 K−2 and  0.5 at 1100 K in ) is achieved. These results are linked to a distinct modification of the electronic structure: charge carriers become trapped at the edge of the conduction band due to Anderson localization, evidenced by an anomalously low carrier mobility, and characteristic temperature and doping dependencies of charge transport. The bi‐dimensional optimization of doping and carrier localization enable a simultaneous improvement of the Seebeck coefficient and electrical conductivity, opening a novel pathway to advance ZnO thermoelectrics.
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References
78
[1]
Ioffe A. (1957)
[4]
High-Thermoelectric Performance of Nanostructured Bismuth Antimony Telluride Bulk Alloys

Bed Poudel, Qing Hao, Yi Ma et al.

Science 10.1126/science.1156446
[6]
High-performance bulk thermoelectrics with all-scale hierarchical architectures

Kanishka Biswas, Jiaqing He, Ivan D. Blum et al.

Nature 10.1038/nature11439
[23]
A comprehensive review of ZnO materials and devices

Ü. Özgür, Ya. I. Alivov, C. Liu et al.

Journal of Applied Physics 10.1063/1.1992666
[25]
ZnO nanostructures for optoelectronics: Material properties and device applications

A.B. Djurišić, A.M.C. Ng, X.Y. Chen

Progress in Quantum Electronics 10.1016/j.pquantelec.2010.04.001
[26]
Layered oxygen-containing thermoelectric materials: Mechanisms, strategies, and beyond

Guang-Kun Ren, Jin-Le Lan, Li‐Dong Zhao et al.

Materials Today 10.1016/j.mattod.2019.07.003
[45]
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides

R. D. Shannon

Acta Crystallographica Section A 10.1107/s0567739476001551
[47]
Native point defects in ZnO

Anderson Janotti, Chris G. Van de Walle

Physical Review B 10.1103/physrevb.76.165202

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Details
Published
May 05, 2024
Vol/Issue
11(26)
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Authors
Funding
Russian Science Foundation Award: 19‐79‐10282
Ministry of Education, Culture, Sports, Science and Technology Award: JPMXP1223NM5114
Japan Science and Technology Agency Award: JPMJSP2124
JST-Mirai Program Award: JPMJMI19A1
Cite This Article
Illia Serhiienko, Andrei Novitskii, Fabian Garmroudi, et al. (2024). Record‐High Thermoelectric Performance in Al‐Doped ZnO via Anderson Localization of Band Edge States. Advanced Science, 11(26). https://doi.org/10.1002/advs.202309291