Enhancing the thermoelectric performance of Bi2Se3 single crystals via Sn doping

IF 2.1 4区物理与天体物理 Q3 PHYSICS, CONDENSED MATTER

Solid State Communications Pub Date : 2025-01-21 DOI:10.1016/j.ssc.2025.115849

Thi Huong Nguyen , Van Quang Nguyen , Phan Van Cuong , Nhat Nguyen Phan , Jong Ho Park , Sudong Park , Sunglae Cho

引用次数: 0

Abstract

In this study, large Sn-doped Bi₂Se₃ single crystals were successfully grown using the temperature gradient method. The influence of Sn doping concentration on the thermoelectric properties of Bi₂Se₃ was systematically investigated over a wide temperature range (300–773 K). Sn doping significantly reduced the lattice thermal conductivity along the in-plane direction, reaching approximately 0.7 W m⁻¹ K⁻¹ at 773 K due to enhanced phonon scattering. Notably, a maximum ZT value of 0.35 was achieved at 773 K for the doped sample. These results demonstrate that Sn doping effectively enhances the thermoelectric performance of Bi₂Se₃ single crystals at intermediate temperatures.

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来源期刊

Solid State Communications 物理-物理：凝聚态物理

CiteScore

3.40

自引率

4.80%

发文量

287

审稿时长

51 days

期刊介绍： Solid State Communications is an international medium for the publication of short communications and original research articles on significant developments in condensed matter science, giving scientists immediate access to important, recently completed work. The journal publishes original experimental and theoretical research on the physical and chemical properties of solids and other condensed systems and also on their preparation. The submission of manuscripts reporting research on the basic physics of materials science and devices, as well as of state-of-the-art microstructures and nanostructures, is encouraged. A coherent quantitative treatment emphasizing new physics is expected rather than a simple accumulation of experimental data. Consistent with these aims, the short communications should be kept concise and short, usually not longer than six printed pages. The number of figures and tables should also be kept to a minimum. Solid State Communications now also welcomes original research articles without length restrictions. The Fast-Track section of Solid State Communications is the venue for very rapid publication of short communications on significant developments in condensed matter science. The goal is to offer the broad condensed matter community quick and immediate access to publish recently completed papers in research areas that are rapidly evolving and in which there are developments with great potential impact.