Ghanekar Alok, Tian Yanpei, Liu Xiaojie, Zheng Yi
University of Rhode Island, Department of Mechanical, Industrial, and Systems Engineering, Kingston, Rhode Island, United States.
J Photonics Energy. 2019 Jul;9(3). doi: 10.1117/1.jpe.9.032706. Epub 2019 Jan 5.
We analyze a near-field thermoradiative device that consists of an indium arsenide-based photodiode under negative illumination. We analyze a possible enhancement of conversion efficiency by use of hyperbolic metamaterial (HMM) in place of bulk metallic heat sink. A stack of alternating thin-films of metal [zirconium carbide (ZrC)] and dielectric [silicon dioxide (SiO)] is chosen to be the HMM under investigation. The presence of hyperbolic modes creates additional channels of near-field radiative transfer. An increased power density is predicted without a compromise in system efficiency.
我们分析了一种近场热辐射器件，该器件由处于负光照下的砷化铟基光电二极管组成。我们分析了通过使用双曲线超材料（HMM）代替块状金属散热器来提高转换效率的可能性。选择由金属[碳化锆（ZrC）]和电介质[二氧化硅（SiO）]交替组成的薄膜堆栈作为所研究的HMM。双曲线模式的存在创造了近场辐射传输的额外通道。预计在不影响系统效率的情况下功率密度会增加。
