Self-assembled metamaterial perfect absorbers at visible wavelengths using core-shell Au@SiO(2)meta-atoms
文献类型：期刊论文
| 作者 | Zhang, Haibin1,2,3; Li, Yaru1; Long, Xiyu1; Luo, Jun1; Zhang, Ying2; Song, Minwei2; Fang, Jingzhong1,2; Guan, Chunlin3; Cheng, Yuntao2; Liu, Hong2,3 |
| 刊名 | Journal of Materials Chemistry C
 |
| 出版日期 | 2020-10-07 |
| 卷号 | 8期号:37页码:12876-12885 |
| ISSN号 | 2050-7526 |
| DOI | 10.1039/d0tc02886j |
| 文献子类 | 期刊论文 |
| 英文摘要 | Light absorbers have widespread applications in plasmonic sensing, optical imaging, solar energy harvesting and photovoltaics. In this paper, a new class of metamaterial perfect absorbers (MPAs) is presented: core-shell Au@SiO(2)meta-atoms randomly arranged onto an aluminum nanofilm that is capable of the near-perfect absorption of visible light over a wide spectral wavelength region. The MPAs were fabricated by a facile bottom-up self-assembly technique at the air-liquid interface. Interestingly, core-shell Au@SiO(2)plasmonic nanoparticles (NPs) were designed as the meta-atoms and a matched synergistic electrostatic and capillary self-assembly strategy was proposed. Optical characterization showed that the well-designed MPA with four layers of Au@SiO(2)meta-atoms exhibited a particular absorption behavior at visible frequencies: two near-perfect absorption peaks (absorptance both above 99%) were recorded near lambda= 537 nm and lambda= 575 nm with TE- and TM-polarized light, respectively, at different incident angles. Moreover, under similar to 45 degrees incidence, the TE-polarized light absorption (average absorptivity of more than 90%) of the MPA ranged from 506 to 580 nm, suggesting that the MPA achieved a polarization-dependent broadband response. It has been demonstrated that the exotic absorbing properties of our designed MPAs were due to the effective Mie resonances (localized and coupled Mie resonances) from adjacent Au@SiO(2)meta-atoms and the positive interferometric enhancement from the SiO(2)dielectric shells. Besides, the proper self-assembled layer (i.e.4) of Au@SiO(2)meta-atoms and the suitable light incidence angle (i.e.45 degrees) were critical for the desired resonance absorption behaviors. |
| 出版地 | CAMBRIDGE |
| WOS关键词 | BROAD-BAND ABSORPTION ; MODES |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000574416900010 |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/10075]  |
| 专题 | 光电技术研究所_轻量化中心 |
| 作者单位 | 1.State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Chinese Academy of Sciences, Chengdu; 610209, China; 2.Lightweight Optics and Advanced Materials Center, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China; 3.University of Chinese Academy of Sciences, Beijing; 100049, China |
| 推荐引用方式 GB/T 7714 | Zhang, Haibin,Li, Yaru,Long, Xiyu,et al. Self-assembled metamaterial perfect absorbers at visible wavelengths using core-shell Au@SiO(2)meta-atoms[J]. Journal of Materials Chemistry C,2020,8(37):12876-12885. |
| APA | Zhang, Haibin.,Li, Yaru.,Long, Xiyu.,Luo, Jun.,Zhang, Ying.,...&Liu, Hong.(2020).Self-assembled metamaterial perfect absorbers at visible wavelengths using core-shell Au@SiO(2)meta-atoms.Journal of Materials Chemistry C,8(37),12876-12885. |
| MLA | Zhang, Haibin,et al."Self-assembled metamaterial perfect absorbers at visible wavelengths using core-shell Au@SiO(2)meta-atoms".Journal of Materials Chemistry C 8.37(2020):12876-12885. |
入库方式： OAI收割
来源：光电技术研究所
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