Graphene Readout Silicon‐Based Microtube Photodetectors for Encrypted Visible Light Communication
Source abstract
Abstract
Abstract The implementation of an advanced light receiver is imperative for the widespread application of visible light communication. However, the integration of multifunctional and high‐performance visible light receivers is still limited by device structure and system complexity. Herein, a graphene‐readout silicon‐based microtube photodetector is proposed as the receiver for omnidirectional Mbps‐level visible light communication. The integration of graphene‐semiconductor material systems simultaneously ensures the effective absorption of incident light and rapid readout of photogenerated carriers, and the device exhibits an ultrafast response speed of 75 ns and high responsivity of 6803 A W−1. In addition, the microtube photodetector realizes the omnidirectional light‐trapping and enhanced polarization photodetection. As the receiving end of the visible light communication system, the microtube photodetector achieves a data rate of up to 778 Mbps, a field of view of 140°, and the encrypted visible light communication of polarized light, providing a new possibility for the future development of the internet of things and information security.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Optical Wireless Communication Technologies · Metamaterials and Metasurfaces Applications · Plasmonic and Surface Plasmon Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Materials Science & State Key Laboratory of Molecular Engineering of Polymer Fudan University Shanghai 200438 China
Key Laboratory for Information Science of Electromagnetic Waves Department of Communication Science and Engineering Fudan University Shanghai 200438 China
State Key Laboratory of Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China
Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception Institute of Optoelectronics Fudan University Shanghai 200438 China
Fudan University Yiwu Zhejiang 322000 China
International Institute of Intelligent Nanorobots and Nanosystems Fudan University Shanghai 200438 China
State Key Laboratory of Photovoltaic Science and Technology Fudan University Shanghai 200438 China
Funding
National Natural Science Foundation of China · Science and Technology Commission of Shanghai Municipality · National Postdoctoral Program for Innovative Talents · Key Technologies Research and Development Program
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