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Anisotropic Plasmonic Nanostructure Induced Polarization Photoresponse for MoS 2 ‐Based Photodetector
Author(s) -
Chen Si,
Cao Rui,
Chen Xing,
Wu Qing,
Zeng Yonghong,
Gao Shan,
Guo Zhinan,
Zhao Jinlai,
Zhang Meng,
Zhang Han
Publication year - 2020
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201902179
Subject(s) - photodetector , materials science , responsivity , optoelectronics , plasmon , nanostructure , anisotropy , polarization (electrochemistry) , nanosheet , isotropy , optics , nanotechnology , physics , chemistry
Techniques that give anisotropic properties to 2D materials with isotropic crystal structures will enable 2D material based photodetectors to possess polarization sensitivity in the detection of polarization, which will greatly improve the spatial resolution of photodetectors. Here, an MoS 2 ‐based polarization photodetector induced by anisotropic plasmonic nanostructure is prepared. The integrating anisotropic plasmonic structures on a few‐layer MoS 2 nanosheet can induce polarization photoresponse and enhance the responsivity of MoS 2 device at the same time. The ratio of the maximum to minimum photocurrents reached 1.45 along two perpendicular polarizations. It proves that anisotropic nanostructure induced polarization sensitivity will pave a new way for the fabrication of polarization photodetectors.