Extending the detection limit: innovations in infrared quantum dot photodetectors reaching up to 18 μm,Light: Science & Applications

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Extending the detection limit: innovations in infrared quantum dot photodetectors reaching up to 18 μm
Light: Science & Applications ( IF 20.6 ) Pub Date : 2024-07-08 , DOI: 10.1038/s41377-024-01504-3
Chong Wu Wang ₁ , Qi Jie Wang _{1,

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Affiliation

A regrowth method was used to synthesize large-sized colloidal quantum dots (CQDs). With the assistance of doping engineering, the synthesized CQD detectors demonstrate exceptional long-wavelength infrared detection performance, reaching up to 18 μm, significantly extending the spectral response limit for CQD-based infrared detectors. These detectors also achieve a reasonably high detectivity of 6.6 × 10⁸ Jones.

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