Large-area, freestanding single-crystal gold of single nanometer thickness
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
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2023
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| _version_ | 1866911822528905216 |
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| author | Pan, Chenxinyu Tong, Yuanbiao Qian, Haoliang Krasavin, Alexey V. Li, Jialin Zhu, Jiajie Zhang, Yiyun Cui, Bowen Li, Zhiyong Wu, Chenming Wang, Zhenxin Liu, Lufang Li, Linjun Guo, Xin Zayats, Anatoly V. Tong, Limin Wang, Pan |
| author_facet | Pan, Chenxinyu Tong, Yuanbiao Qian, Haoliang Krasavin, Alexey V. Li, Jialin Zhu, Jiajie Zhang, Yiyun Cui, Bowen Li, Zhiyong Wu, Chenming Wang, Zhenxin Liu, Lufang Li, Linjun Guo, Xin Zayats, Anatoly V. Tong, Limin Wang, Pan |
| contents | Two-dimensional single-crystal metals are highly sought after for next-generation technologies. Here, we report large-area (>10^4 μm2), single-crystal two-dimensional gold with thicknesses down to a single-nanometer level, employing an atomic-level-precision chemical etching approach. The ultrathin thickness and single-crystal quality endow two-dimensional gold with unique properties including significantly quantum-confinement-augmented optical nonlinearity, low sheet resistance, high transparency and excellent mechanical flexibility. By patterning the two-dimensional gold into nanoribbon arrays, extremely-confined near-infrared plasmonic resonances are further demonstrated with quality factors up to 5. The freestanding nature of two-dimensional gold allows its straightforward manipulation and transfer-printing for integration with other structures. The developed two-dimensional gold provides an emerging platform for fundamental studies in various disciplines and opens up new opportunities for applications in high-performance ultrathin optoelectronic, photonic and quantum devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_07858 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Large-area, freestanding single-crystal gold of single nanometer thickness Pan, Chenxinyu Tong, Yuanbiao Qian, Haoliang Krasavin, Alexey V. Li, Jialin Zhu, Jiajie Zhang, Yiyun Cui, Bowen Li, Zhiyong Wu, Chenming Wang, Zhenxin Liu, Lufang Li, Linjun Guo, Xin Zayats, Anatoly V. Tong, Limin Wang, Pan Optics Two-dimensional single-crystal metals are highly sought after for next-generation technologies. Here, we report large-area (>10^4 μm2), single-crystal two-dimensional gold with thicknesses down to a single-nanometer level, employing an atomic-level-precision chemical etching approach. The ultrathin thickness and single-crystal quality endow two-dimensional gold with unique properties including significantly quantum-confinement-augmented optical nonlinearity, low sheet resistance, high transparency and excellent mechanical flexibility. By patterning the two-dimensional gold into nanoribbon arrays, extremely-confined near-infrared plasmonic resonances are further demonstrated with quality factors up to 5. The freestanding nature of two-dimensional gold allows its straightforward manipulation and transfer-printing for integration with other structures. The developed two-dimensional gold provides an emerging platform for fundamental studies in various disciplines and opens up new opportunities for applications in high-performance ultrathin optoelectronic, photonic and quantum devices. |
| title | Large-area, freestanding single-crystal gold of single nanometer thickness |
| topic | Optics |
| url | https://arxiv.org/abs/2311.07858 |