Ultra-high power factor of p-type Bi2Se3 for room-temperature thermoelectric applications

文献情報

出版日 2023-06-12

DOI 10.1039/D3CC01072D

インパクトファクター 6.222

著者

V. Vijay, S. Harish, J. Archana

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要旨

Achieving high zT in n-type and p-type thermoelements in similar compounds is a great challenge for device construction. Herein, we report a high-power factor of 480 μW/mK2 in Ga and Mn co-doped Bi2Se3 along with a maximum zT of 0.25 at 303 K as a p-type thermoelement. The co-doped Ga and Mn play distinct roles in enhancing the hole concentration to 1.6 × 1019 cm−3 with a maximized effective mass. In addition, a drastic reduction in lattice thermal conductivity of 0.5 W/mK is attained due to point defects of mass and strain field fluctuation scattering in Bi2Se3.

掲載誌

Chemical Communications

CiteScore: 8.6

自己引用率: 4.7%

年間論文数: 2458

ChemComm publishes urgent research which is of outstanding significance and interest to experts in the field, while also appealing to the journal’s broad chemistry readership. Our communication format is ideally suited to short, urgent studies that are of such importance that they require accelerated publication. Our scope covers all topics in chemistry, and research at the interface of chemistry and other disciplines (such as materials science, nanoscience, physics, engineering and biology) where there is a significant novelty in the chemistry aspects. Major topic areas covered include: Analytical Chemistry Catalysis Chemical Biology and medicinal chemistry Computational Chemistry and Machine Learning Energy and sustainable chemistry Environmental Chemistry Green Chemistry Inorganic Chemistry Materials Chemistry Nanoscience Organic Chemistry Physical Chemistry Polymer Chemistry Supramolecular Chemistry

Ultra-high power factor of p-type Bi2Se3 for room-temperature thermoelectric applications

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