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High‐performance photodetectors operating over a broad wavelength range from ultraviolet, visible, to infrared are of scientific and technological importance for a wide range of applications. Here, a photodetector based on van der Waals heterostructures of graphene and its fluorine‐functionalized derivative is presented. It consistently shows broadband photoresponse from the ultraviolet (255 nm) to...
Graphene can be used for wide‐broadband photodetectors since its photoresponse spectrum covers from the UV to the terahertz frequencies. A graphene hyperspectral image of West‐Lake in Hangzhou, China is shown, indicating the wealth of sufficient information held in the broad spectral domain. The work described in article number 1700463 by Yang Xu, Weida Hu, and co‐workers shows potential application...
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