Mid-infrared optoelectronics with mercury chalcogenide colloidal quantum dots

Philippe Guyot-Sionnest

doi:10.1117/12.3013728

10 June 2024 Mid-infrared optoelectronics with mercury chalcogenide colloidal quantum dots

Philippe Guyot-Sionnest

Proceedings Volume 13046, Infrared Technology and Applications L; 130460B (2024) https://doi.org/10.1117/12.3013728
Event: SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States

Abstract

Colloidal Quantum Dots (CQD) made of inorganic heavy atoms with low frequency vibrations should facilitate long lived excited electronic states. This should allow CQDs to unlock the previously theorized great potential of quantum dot for infrared technologies. Using different starting semiconductor material, CQDs with interband or intraband transitions have been shown to cover the full infrared spectrum. Single element detectors have been realized from the near-IR to the LWIR. There is also a growing number of demonstrations of focal plane arrays with such materials, in the SWIR with PbS, and MWIR with HgTe. LED demonstrations cover the near-IR and are recently extending into the MWIR. This talk will describe the progress to date of CQD optoelectronic devices in the MWIR, as well the main target and challenges.

Conference Presentation

Citation Download Citation

Philippe Guyot-Sionnest "Mid-infrared optoelectronics with mercury chalcogenide colloidal quantum dots", Proc. SPIE 13046, Infrared Technology and Applications L, 130460B (10 June 2024); https://doi.org/10.1117/12.3013728

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