2D van der Waals Heterojunction Nanophotonic Devices: From Fabrication to Performance |
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| Authors: | Xiantong Yu Xin Wang Feifan Zhou Junle Qu Jun Song |
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| Affiliation: | 1. Center for Biomedical Optics and Photonics (CBOP) and College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems, Shenzhen University, Shenzhen, 518060 P. R. China;2. Institute of Microscale Optoelectronics (IMO), Shenzhen University, Shenzhen, 518060 China |
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| Abstract: | 2D van der Waals heterojunctions (vdWhs) are a novel type of metamaterial that are flexible, adjustable, and easy to assemble. Using weak van der Waals forces (vdWfs), layered 2D materials can stack freely to form vdWhs with atomic level flat interfaces. By using different 2D materials and specific stacking methods, their unique properties can be organically combined, to exhibit more abundant optical properties. In fact, nanophotonic devices based on 2D vdWhs have developed rapidly and made significant progress. Therefore, the main progress of 2D vdWhs nanophotonic devices in recent years, including the preparation methods of 2D vdWhs and the performance improvements of various nanophotonic devices, is reviewed. Lastly, the prospects of 2D vdWhs nanophotonic devices are discussed. |
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| Keywords: | 2D materials 2D van der Waals heterojunctions nanophotonic devices |
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