Vertical Germanium Nanowire Photodetectors with Suspended Graphene Top Contact | Zendy

Shiqiang Li | Zendy; Jacopo Frigerio | Zendy; Daniel Chrastina | Zendy; Giovanni Isella | Zendy; Amit Solanki | Zendy; Wuzhou Song | Zendy; Changxi Zheng | Zendy; Kenneth B. Crozier | Zendy

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Vertical Germanium Nanowire Photodetectors with Suspended Graphene Top Contact

Author(s) -

Shiqiang Li,

Jacopo Frigerio,

Daniel Chrastina,

Giovanni Isella,

Amit Solanki,

Wuzhou Song,

Changxi Zheng,

Kenneth B. Crozier

Publication year - 2016

Publication title -

conference on lasers and electro-optics

Language(s) - English

Resource type - Conference proceedings

DOI - 10.1364/cleo_si.2016.sm4e.7

Subject(s) - germanium , responsivity , nanowire , materials science , graphene , photodetector , optoelectronics , silicon , substrate (aquarium) , infrared , layer (electronics) , electrical contacts , optics , nanotechnology , physics , oceanography , geology

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.

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