PHOTOSENSING DEVICE WITH GRAPHENE

摘要

A photosensing device with a photovoltage sensing mechanism, a graphene layer and a semiconductor layer. The graphene layer is sandwiched between the semiconductor layer and a substrate. The photovoltage sensing mechanism senses the photovoltage created by light impinging on the graphene-semiconductor heterojunction. The strength of the photovoltage is used to indicate the level of illumination of the impinging light.

主权项

1. A photosensing device, comprising:
a substrate; a gate insulation layer formed on the substrate; a source region and a drain region formed on the substrate; a graphene-silicon heterojunction disposed on the gate insulation layer comprising: a graphene layer; and a gate layer; wherein the graphene layer is disposed between the gate insulation layer and the gate layer.