Enhanced thermoelectric performance of twisted bilayer blue phosphorene

IF 2.3 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Physics Letters A Pub Date : 2025-03-06 DOI:10.1016/j.physleta.2025.130405

L.J. Gong , Q.Z. Han , J. Yang , H.L. Shi , Y.H. Zhao , H. Yang , Q.H. Liu , Z.T. Jiang

{"title":"Enhanced thermoelectric performance of twisted bilayer blue phosphorene","authors":"L.J. Gong , Q.Z. Han , J. Yang , H.L. Shi , Y.H. Zhao , H. Yang , Q.H. Liu , Z.T. Jiang","doi":"10.1016/j.physleta.2025.130405","DOIUrl":null,"url":null,"abstract":"<div><div>Aiming at exploring the feasibility of improving the thermoelectric (TE) performance by twist in blue phosphorene systems, we make a systematic investigation into the TE properties of the twisted bilayer blue phosphorene (tbBP). By comparing the Seebeck coefficients, electrical conductances, power factors, thermal conductances, and figures of merit <em>ZT</em>s of six tbBPs with different twist angles, we can find that the maximum <em>ZT</em> of the tbBP can be enhanced by changing the twist angle, which provides a degree of freedom to manipulate the TE performance. In comparison with the 60<sup>∘</sup> tbBP (the usual bilayer blue phosphorene), the maximum <em>ZT</em> of the 9.4<sup>∘</sup> tbBP can be enhanced by 7 (14) times along the armchair (zigzag) direction at the temperature of 300 K. In addition, we show that the <em>ZT</em> peak value will be further increased as the temperature increases. At the high temperature of 900 K, the <em>ZT</em>s of the 9.4<sup>∘</sup> tbBP along the zigzag and armchair directions may be greater than 3, indicating that the tbBPs can be used as high-performance TE materials. Our findings point to an opportunity to improve the <em>ZT</em> by means of the twisting scheme.</div></div>","PeriodicalId":20172,"journal":{"name":"Physics Letters A","volume":"541 ","pages":"Article 130405"},"PeriodicalIF":2.3000,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics Letters A","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0375960125001859","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Aiming at exploring the feasibility of improving the thermoelectric (TE) performance by twist in blue phosphorene systems, we make a systematic investigation into the TE properties of the twisted bilayer blue phosphorene (tbBP). By comparing the Seebeck coefficients, electrical conductances, power factors, thermal conductances, and figures of merit ZTs of six tbBPs with different twist angles, we can find that the maximum ZT of the tbBP can be enhanced by changing the twist angle, which provides a degree of freedom to manipulate the TE performance. In comparison with the 60^∘ tbBP (the usual bilayer blue phosphorene), the maximum ZT of the 9.4^∘ tbBP can be enhanced by 7 (14) times along the armchair (zigzag) direction at the temperature of 300 K. In addition, we show that the ZT peak value will be further increased as the temperature increases. At the high temperature of 900 K, the ZTs of the 9.4^∘ tbBP along the zigzag and armchair directions may be greater than 3, indicating that the tbBPs can be used as high-performance TE materials. Our findings point to an opportunity to improve the ZT by means of the twisting scheme.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Physics Letters A 物理-物理：综合

CiteScore

5.10

自引率

3.80%

发文量

493

审稿时长

30 days

期刊介绍： Physics Letters A offers an exciting publication outlet for novel and frontier physics. It encourages the submission of new research on: condensed matter physics, theoretical physics, nonlinear science, statistical physics, mathematical and computational physics, general and cross-disciplinary physics (including foundations), atomic, molecular and cluster physics, plasma and fluid physics, optical physics, biological physics and nanoscience. No articles on High Energy and Nuclear Physics are published in Physics Letters A. The journal''s high standard and wide dissemination ensures a broad readership amongst the physics community. Rapid publication times and flexible length restrictions give Physics Letters A the edge over other journals in the field.