Details

Autor(en) / Beteiligte

• Liu, H.C.
• Duboz, J.-Y.
• Dudek, R.
• Wasilewski, Z.R.
• Fafard, S.
• Finnie, P.

Titel

Quantum dot infrared photodetectors

Ist Teil von

• Physica. E, Low-dimensional systems & nanostructures, 2003-04, Vol.17, p.631-633

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2003

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• We discuss key issues related to quantum dot infrared photodetectors. These are the normal incidence response, the dark current, and the responsivity and detectivity. It is argued that the present devices have not fully demonstrated the potential advantages. The dominant infrared response in devices so far is polarized in the growth direction. The observed dark currents are several orders of magnitude higher than those for quantum well photodetectors; while ideally they should be lower. The areas that need improvements are pointed out.