Phys.org June 28, 2018
Researchers at UCLA laid strips of graphene over a silicon dioxide layer, which itself covers a base of silicon. Then, they created a series of comb-like nanoscale patterns, made of gold, with “teeth” about 100 nanometers wide. The graphene acts as a net to catch incoming photons and then convert them into an electrical signal. The gold comb-shaped nanopatterns transfer the information to a processor, which produces a corresponding high-quality image, even under low-light conditions. The design enables operation across a broad range of light, quicker processing of images and provides greater sensitivity to lower levels of light… read more. Open Access TECHNICAL ARTICLEÂ
The photodetector operates across a broad range of light, processes images more quickly and is more sensitive to low levels of light than current technology. Credit: Jarrahi Research Group/UCLA