High-throughput realization of an infrared selective absorber/emitter by DUV microsphere projection lithography.
NANOTECHNOLOGY(2016)
摘要
In this paper, we present a low-cost and high-throughput nanofabrication method to realize metasurfaces that have selective absorption/emission in the mid-infrared region of the electromagnetic spectrum. We have developed DUV projection lithography to produce arbitrary patterns with sub-80 nm feature sizes. As examples of practical applications, we experimentally demonstrate structures with single and double spectral absorption/emission features, and in close agreement with numerical simulation. The fundamental mechanism of perfect absorption is discussed as well. Selective infrared absorbers/emitters are critical elements in realizing efficient thermophotovoltaic cells and high-performance biosensors.
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关键词
microsphere photolithography,perfect absorber,thermo-photovoltaic cells,infrared selective absorber/emitter,metasurfaces,nanofabrication
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