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个人信息Personal Information
教授 博士生导师
招生学科专业：
动力工程及工程热物理 -- 【招收博士、硕士研究生】 -- 能源与动力学院
航空宇航科学与技术 -- 【招收博士、硕士研究生】 -- 能源与动力学院
能源动力 -- 【招收博士、硕士研究生】 -- 能源与动力学院
主要任职：飞行器热管理与能量利用工信部重点实验室主任
毕业院校：美国佐治亚理工学院（Georgia Institute of Technology）
学历：美国佐治亚理工学院
学位：工学博士学位
所在单位：能源与动力学院
电子邮箱：
Super-Planckian thermal radiation enabled by coupled quasi-elliptic 2D black phosphorus plasmons
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所属单位：能源与动力学院
发表刊物：APPLIED THERMAL ENGINEERING
关键字：Near-field thermal radiation Black phosphorus Quasi-elliptic surface plasmon polaritons Optical conductivity
摘要：New-joined 2D layered material - black phosphorus (BP), due to strong in-plane structural anisotropy, has exhibited exotic electrical, optical, and thermal properties while its thermal radiative properties are still largely unexplored. Here, we investigate near-field thermal radiation of mono/multilayer BP, and find that monolayer BP can support three-order-of-magnitude enhanced heat exchange over blackbodies, even exceeding optimized graphene sheets by around 18.5%. We derive the dispersion relation of coupled anisotropic BP surface plasmon polaritons (SPPs), which is find to have a good agreement with the energy transmission contour of evanescent waves. The prominent thermal radiation rate thus can be attributed to the excitation of quasi-elliptic BP SPPs enabled by its unique structural anisotropy and doping. With increasing number of layers, near-field radiative heat flux decreases monotonously. The underlying mechanism lies in the increased imaginary part of optical conductivity but weak coupling with high-wavevector photons. This work helps elucidate the near-field thermal radiation mechanism of mono/multilayer BP, and paves the way for the application of emerging BP in non-contact thermal management and energy conversion.
ISSN号：1359-4311
是否译文：否
发表时间：2018-11-05
合写作者：Shen, Jiadong,Guo, Shu,Liu, Baoan,Wu, Weitao,何欢
通讯作者：刘向雷