Hydrogen Sensing Using Thin-Film Perfect Light Absorber
文献类型：期刊论文
| 作者 | M.ElKabbash; K.V.Sreekanth; Y.Alapan; M.Kim; J.Cole |
| 刊名 | Acs Photonics
 |
| 出版日期 | 2019 |
| 卷号 | 6期号:8页码:1889-1894 |
| 关键词 | thin films,Fabry-Perot cavity,interference,gas sensing,hydrogen,sensing,nanophotonics,dielectric function,absorption,palladium |
| ISSN号 | 2330-4022 |
| DOI | 10.1021/acsphotonics.9b00764 |
| 英文摘要 | Hydrogen sensing is important in many industrial, biomedical, environmental, and energy applications. Realizing a practical, reliable, and inexpensive hydrogen sensor, however, is an ongoing challenge. Here, we demonstrate hydrogen sensing based on an optically active metal-dielectric-metal (MDM) perfect light absorber. The cavity enables perfect broadband light absorption (>99.999%) with optical losses localized in an ultrathin palladium (Pd) layer. Upon exposure to hydrogen, the Pd layer forms a hydride which actively shifts the cavity minimum reflectance wavelength by similar to 60 nm for a hydrogen concentration of 4%. The sensor enjoys extremely high figure of merit. The ease of fabrication, large area, and high sensitivity of our sensor make it an attractive and practical option, especially for miniaturized hydrogen sensors vital for medical and food safety applications. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/63401]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | M.ElKabbash,K.V.Sreekanth,Y.Alapan,et al. Hydrogen Sensing Using Thin-Film Perfect Light Absorber[J]. Acs Photonics,2019,6(8):1889-1894. |
| APA | M.ElKabbash,K.V.Sreekanth,Y.Alapan,M.Kim,&J.Cole.(2019).Hydrogen Sensing Using Thin-Film Perfect Light Absorber.Acs Photonics,6(8),1889-1894. |
| MLA | M.ElKabbash,et al."Hydrogen Sensing Using Thin-Film Perfect Light Absorber".Acs Photonics 6.8(2019):1889-1894. |
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