A.A. Odebowale, Khalil As'ham, Andergachew Mekonnen Berhe, Nusrat Alim, Haroldo T. Hattori, Andrey E. Miroshnichenko
{"title":"由 Bi2Se3 片材辅助的近场辐射热整流","authors":"A.A. Odebowale, Khalil As'ham, Andergachew Mekonnen Berhe, Nusrat Alim, Haroldo T. Hattori, Andrey E. Miroshnichenko","doi":"10.1016/j.icheatmasstransfer.2024.107707","DOIUrl":null,"url":null,"abstract":"<div><p>The ability to control heat flux at the nanoscale opens up numerous exciting possibilities in modern electronics and the field of information processing. In this research, we propose a design with the focus on achieving efficient thermal rectification at moderate gap and relatively low temperature. This study centers on near-field thermal radiation between temperature dependent indium antimonide (InSb) and silicon carbide (3C-SiC) coated with bismuth selenide (Bi<sub>2</sub>Se<sub>3</sub>). Our investigation sheds light on the critical role played by the Bi<sub>2</sub>Se<sub>3</sub> layer in enhancing various key parameters, including the net radiative flux, and thermal rectification efficiency (<em>η</em>). We achieved a substantial improvement in the <em>η</em> of a near-field radiative thermal rectifier (NFRTR) due to the presence of the Bi<sub>2</sub>Se<sub>3</sub> sheet. This enhancement is contingent on factors such as the Fermi energy (<em>E</em><sub><em>f</em></sub>) of Bi<sub>2</sub>Se<sub>3</sub>, emitter temperature, and the vacuum gap (<em>d</em>). Our study culminated in the identification of an optimal design, achieving an impressive <em>η</em> of 75% at an emitter temperature (<em>T</em><sub><em>H</em></sub>) of 350 K, with vacuum gap (d) set to 20 nm. Furthermore, increasing <em>T</em><sub><em>H</em></sub> to 500 K resulted in even more promising outcomes, with the highest <em>η</em> reaching 93%. The need for operating the optimized device at moderate temperatures is to strike a balance between efficiency, safety, cost-effectiveness, and material compatibility. These findings represent a significant step forward in the development of efficient Bi<sub>2</sub>Se<sub>3</sub>-based NFRTRs, paving the way for future applications in thermal management, energy conversion systems, and thermal logic gates.</p></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":null,"pages":null},"PeriodicalIF":6.4000,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S073519332400469X/pdfft?md5=288d5d40b4fbfacd5b0a4b2a360fb5c7&pid=1-s2.0-S073519332400469X-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Near-field radiative thermal rectification assisted by Bi2Se3 sheet\",\"authors\":\"A.A. Odebowale, Khalil As'ham, Andergachew Mekonnen Berhe, Nusrat Alim, Haroldo T. Hattori, Andrey E. Miroshnichenko\",\"doi\":\"10.1016/j.icheatmasstransfer.2024.107707\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The ability to control heat flux at the nanoscale opens up numerous exciting possibilities in modern electronics and the field of information processing. In this research, we propose a design with the focus on achieving efficient thermal rectification at moderate gap and relatively low temperature. This study centers on near-field thermal radiation between temperature dependent indium antimonide (InSb) and silicon carbide (3C-SiC) coated with bismuth selenide (Bi<sub>2</sub>Se<sub>3</sub>). Our investigation sheds light on the critical role played by the Bi<sub>2</sub>Se<sub>3</sub> layer in enhancing various key parameters, including the net radiative flux, and thermal rectification efficiency (<em>η</em>). We achieved a substantial improvement in the <em>η</em> of a near-field radiative thermal rectifier (NFRTR) due to the presence of the Bi<sub>2</sub>Se<sub>3</sub> sheet. This enhancement is contingent on factors such as the Fermi energy (<em>E</em><sub><em>f</em></sub>) of Bi<sub>2</sub>Se<sub>3</sub>, emitter temperature, and the vacuum gap (<em>d</em>). Our study culminated in the identification of an optimal design, achieving an impressive <em>η</em> of 75% at an emitter temperature (<em>T</em><sub><em>H</em></sub>) of 350 K, with vacuum gap (d) set to 20 nm. Furthermore, increasing <em>T</em><sub><em>H</em></sub> to 500 K resulted in even more promising outcomes, with the highest <em>η</em> reaching 93%. The need for operating the optimized device at moderate temperatures is to strike a balance between efficiency, safety, cost-effectiveness, and material compatibility. 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Near-field radiative thermal rectification assisted by Bi2Se3 sheet
The ability to control heat flux at the nanoscale opens up numerous exciting possibilities in modern electronics and the field of information processing. In this research, we propose a design with the focus on achieving efficient thermal rectification at moderate gap and relatively low temperature. This study centers on near-field thermal radiation between temperature dependent indium antimonide (InSb) and silicon carbide (3C-SiC) coated with bismuth selenide (Bi2Se3). Our investigation sheds light on the critical role played by the Bi2Se3 layer in enhancing various key parameters, including the net radiative flux, and thermal rectification efficiency (η). We achieved a substantial improvement in the η of a near-field radiative thermal rectifier (NFRTR) due to the presence of the Bi2Se3 sheet. This enhancement is contingent on factors such as the Fermi energy (Ef) of Bi2Se3, emitter temperature, and the vacuum gap (d). Our study culminated in the identification of an optimal design, achieving an impressive η of 75% at an emitter temperature (TH) of 350 K, with vacuum gap (d) set to 20 nm. Furthermore, increasing TH to 500 K resulted in even more promising outcomes, with the highest η reaching 93%. The need for operating the optimized device at moderate temperatures is to strike a balance between efficiency, safety, cost-effectiveness, and material compatibility. These findings represent a significant step forward in the development of efficient Bi2Se3-based NFRTRs, paving the way for future applications in thermal management, energy conversion systems, and thermal logic gates.
期刊介绍:
International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.