Broadband light absorption of an Al semishell-MIM nanostrucure in the UV to near-infrared regions.
Broadband light absorption of an Al semishell-MIM nanostrucure in the UV to near-infrared regions.
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DOI：
10.1364/ol.43.002981
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发表时间：
2018-06
期刊：
影响因子：
3.6
通讯作者：
K. Matsumori;R. Fujimura
中科院分区：
文献类型：
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作者：
K. Matsumori;R. Fujimura
提出了一种等离子体宽带光吸收材料，其吸收对入射角和偏振不敏感，在紫外光和近红外区吸收不敏感。在实验观察中，证实了在300-1000 nm的波长范围内的最大平均吸收为83%。我们提出的等离子体吸收体是基于金属-绝缘体-金属的三层叠层，顶层金属层采用胶体光刻的纳米结构。这种结构是由铝组成的，铝是一种性能优良且性价比高的等离子体材料。这种制造简单且经济的材料使我们能够生产出大规模的太阳能吸收装置。
A plasmonic broadband light absorber, whose absorption is insensitive to incident angles and polarizations, in the UV to near-infrared regions is demonstrated. In experimental observations, the maximum average absorption of 83% over a wavelength range from 300 to 1000 nm was confirmed. Our proposed plasmonic absorber is based on a three-layer stack of metal-insulator-metal, and the top metal layer is nanostructured by colloidal lithography. This structure is composed of Al, which is an excellent and cost-effective plasmonic material. This fabrication simplicity and economical material allows us to produce a large-scale device of solar absorbers.