Here's How Graphene Makes Photodetectors 100,000 Times More Responsive Than Silicon

"While the mechanism may not be too different than semiconductor photodetectors, these devices are based on proton transport as opposed with all current photodetectors today, which are based on electron transport."

https://spectrum.ieee.org/nanoclast/semiconductors/materials/graphene-photodetectors-100000-times-more-responsive-than-silicon-photodiodes

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