Photodetector with conductive channel made from two dimensional material

US10475941B2 · kind B2 · utility

Assignee

• NOKIA TECHNOLOGIES OY · FI

Inventors

• Alexander Bessonov · Cambridge, GB
• Adam Robinson · Los Angeles, US
• Darryl Cotton · St Ives, GB
• Richard White · Cambridge, GB

Key dates

• Filing date: Sep 12, 2016
• Grant date: Nov 12, 2019
• Expiry date: Sep 12, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/547

Abstract

A photodetector has a two dimensional conductive channel and a quantum dot layer configured to generate charge on exposure to incident electromagnetic radiation. The surface texture of the quantum dot layer has texturing to provide surface roughness which increases the amount of electromagnetic radiation absorbed in the quantum dot layer in comparison to a photodetector having a flat (non-textured) incident electromagnetic radiation surface.