Vertical Germanium Nanowire Photodetectors with Suspended Graphene Top Contact
S LI, J Frigerio, D Chrastina, G Isella, A Solanki, W Song, C Zheng, KB Crozier
OSA | Published : 2016
We demonstrate photodetectors for visible-to-infrared imaging, comprising vertical germanium nanowires on a silicon substrate, with a suspended graphene layer as the top electrical contact. Measured responsivity spectra show peaks that shift with increasing nanowire diameter.