Control of near-field radiative heat transfer based on anisotropic 2D materials
| Autor: | Yongsong Luo, Lixin Ge, Zhou Lihai, Ke Gong, Daqing Yu, Cang Yuping |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Work (thermodynamics)
Materials science Condensed matter physics Condensed Matter - Mesoscale and Nanoscale Physics FOS: Physical sciences General Physics and Astronomy 02 engineering and technology Electron 021001 nanoscience & nanotechnology 01 natural sciences lcsh:QC1-999 Thermal radiation Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences Thermal Black-body radiation 010306 general physics 0210 nano-technology Anisotropy lcsh:Physics Plasmon Excitation Optics (physics.optics) Physics - Optics |
| Zdroj: | AIP Advances, Vol 8, Iss 8, Pp 085321-085321-8 (2018) |
| Popis: | In this work, we study the near-field radiative heat transfer between two suspended sheets of anisotropic 2D materials. It is found that the radiative heat transfer can be enhanced with orders-of-magnitude over the blackbody limit for nanoscale separation. The enhancement is attributed to the excitation of anisotropic and hyperbolic plasmonic modes. Meanwhile, a large thermal modulation effect, depending on the twisted angle of principal axes between the upper and bottom sheets of anisotropic 2D materials, is revealed. The near-field radiative heat transfer for different concentrations of electron is demonstrated and the role of hyperbolic plasmonic modes is analyzed. Our finding of radiative heat transfer between anisotropic 2D materials may find promising applications in thermal nano-devices, such as non-contact thermal modulators, thermal lithography, thermos-photovoltaics, etc. 12 pages, 4 figures |
| Databáze: | OpenAIRE |
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