Atomic-thin WS2 kirigami for bidirectional polarization detection

The assembly and patterning engineering in two-dimensional (2D) materials hold importance for chip-level designs incorporating multifunctional detectors. At present, the patterning and stacking methods of 2D materials inevitably introduce impurity instability and functional limitations. Here, the sp...

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Bibliographic Details
Main Authors: Liu, Xiao, Jiang, Hao, Li, Zhiwei, Luo, Song, Li, Yanjun, Cui, Yu, Zhang, Yan, Hao, Rui, Zeng, Jiang, Hong, Jinhua, Liu, Zheng, Gao, Weibo, Liu, Song
Other Authors: School of Materials Science and Engineering
Format: Article
Language:English
Published: 2024
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Online Access:https://hdl.handle.net/10356/180833
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Institution: Nanyang Technological University
Language: English
Description
Summary:The assembly and patterning engineering in two-dimensional (2D) materials hold importance for chip-level designs incorporating multifunctional detectors. At present, the patterning and stacking methods of 2D materials inevitably introduce impurity instability and functional limitations. Here, the space-confined chemical vapor deposition method is employed to achieve state-of-the-art kirigami structures of self-assembled WS2, featuring various layer combinations and stacking configurations. With this technique as a foundation, the WS2 nano-kirigami is integrated with metasurface design, achieving a photodetector with bidirectional polarization-sensitive detection capability in the infrared spectrum. Nano-kirigami can eliminate some of the uncontrollable factors in the processing of 2D material devices, providing a freely designed platform for chip-level multifunctional detection across multiple modules.