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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：
Effects of near-field photon tunneling on the performance of photon?enhanced thermionic emission energy conversion
点击次数：
所属单位：能源与动力学院
发表刊物：J. Quant. Spectrosc. Radiat. Transf.
摘要：Photon-enhanced thermionic emission (PETE) has been recently proposed as a new concept to achieve full-spectrum solar energy harvesting. Here, we develop a model to consider both space charge effects and near-field photon tunneling losses in evaluating PETE's performance. An optimal gap distance is found to exist, and the underlying mechanism is attributed to soaring thermal radiative losses with decreasing inter-electrode distance beyond the blackbody limit. Further efficiency enhancement approaches are proposed based on electron affinity optimization and mismatched thermal radiation of electrodes. This work helps deepen the understanding of energy transport and conversion processes of PETE devices and guide their optimum designs. © 2018 Elsevier Ltd
ISSN号：0022-4073
是否译文：否
发表时间：2019-01-01
合写作者：Xia, Haifeng,宣益民
通讯作者：刘向雷