Broadband IR detection using quantum dots

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The absorption spectrum of quantum dots (QDs) varies with materials and sizes covering near-IR to mid-IR. With the amplification of the barristor, IR sensors can detect a broad range of light with very high sensitivity.

Barristor-based IR sensors comprise of graphene, QDs and silicon making the process cheaper than InGaAs with a larger wafer (~1/10 the cost compared to an Avalanche Photodiode).

✓ On-chip amplification

✓ Broadband detection

✓ Affordable