Design of emitter structures based on resonant perfect absorption for thermophotovoltaic applications.
Design of emitter structures based on resonant perfect absorption for thermophotovoltaic applications.
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DOI：
10.1364/oe.23.0a1373
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发表时间：
2015-11
期刊：
影响因子：
3.8
通讯作者：
J. Foley;Craig Ungaro;K. Sun;M. Gupta;S. Gray
中科院分区：
文献类型：
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作者：
J. Foley;Craig Ungaro;K. Sun;M. Gupta;S. Gray
我们报告了一类热光伏发射器的结构，建立在平面膜，支持谐振模式，称为完美的吸收模式，促进选择性发射的特殊光学响应。这些平面结构与先前提出的TPV应用设计相比具有几个关键优势：它们制造简单，在温度和条件范围内稳定，并且能够实现任何类别发射器结构中报告的最高光谱效率。这些发射器的利用导致在低操作温度条件下的异常高的器件效率，这应该为废热管理打开新的机会。我们提出了一个理论框架来理解这种性能，并表明，这个框架可以利用作为有前途的候选结构的搜索算法。除了提供一个有效的理论方法来识别高性能的发射器结构，我们的方法提供了新的见解基本的设计原则，并应铺平道路，为未来的结构设计，制造简单，温度稳定，并具有特殊的光学性能。
We report a class of thermophotovoltaic emitter structures built upon planar films that support resonant modes, known as perfectly-absorbing modes, that facilitate an exceptional optical response for selective emission. These planar structures have several key advantages over previously-proposed designs for TPV applications: they are simple to fabricate, are stable across a range of temperatures and conditions, and are capable of achieving some of the highest spectral efficiencies reported of any class of emitter structure. Utilization of these emitters leads to exceptionally high device efficiencies under low operating temperature conditions, which should open new opportunities for waste heat management. We present a theoretical framework for understanding this performance, and show that this framework can be leveraged as a search algorithm for promising candidate structures. In addition to providing an efficient theoretical methodology for identifying high-performance emitter structures, our methodology provides new insight into underlying design principles and should pave way for future design of structures that are simple to fabricate, temperature stable, and possess exceptional optical properties.