Credit: ACS Photonics, Oct. 12, 2018
Cartoon of the graphene-P3HT nanowire hybrid field-effect transistor. Placing the nanowire mesh (red) on top of the graphene (purple) improves the device's response to light. The silicon dioxide/silicon (grey) substrate, or "gate" electrode, controls the flow of electrical current between the electron source and drain (in this case, Au, or gold, electrodes). The scientists used electron-beam lithography to pattern the device.