Graphene 3D Sensor

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Physics World publishes an article "Transparent graphene photodetectors make advanced 3D camera" that proposes to use a set of sensors for depth perception:

A team of researchers led by Zhaohui Zhong, Jeffrey Fessler and Theodore Norris from the University of Michigan built a 3D camera that uses a stack of transparent sensors made from graphene to simultaneously capture images that are focused to different distances from the camera lens.

The researchers fabricated their photodetector on a transparent glass substrate using graphene as the light-sensing layer, the conducting channel layer, the gate layer and even the interconnects. Using graphene for all the different functional components of the device in this way allows for sensitive light detection and a transparency of around 95%.


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