II-VI colloidal quantum dots (CQDs) have made significant technological advances over the past several years, including the world’s first demonstration of MWIR imaging using CQD-based focal plane arrays. The ultra-low costs associated with synthesis and device fabrication, as well as compatibility with wafer-level focal plane array fabrication, make CQDs a very promising infrared sensing technology. In addition to the benefit of cost, CQD infrared imagers are photon detectors, capable of high performance and fast response at elevated operating temperatures. By adjusting the colloidal synthesis, II-VI CQD photodetectors have demonstrated photoresponse from SWIR through LWIR. We will discuss the synthesis and optoelectronic properties of HgTe CQD films, as well as our recent progress in the development of low cost infrared focal plane arrays and single element detectors fabricated using II-VI CQDs.
Richard E. Pimpinella, Brendan W. Benapfl, Thomas Miynarski, and Christoph Grein, "Low-cost II-VI colloidal quantum dots for infrared imaging and detection (Conference Presentation)," Proc. SPIE 10624, Infrared Technology and Applications XLIV, 106241P (Presented at SPIE Defense + Security: April 19, 2018; Published: 14 May 2018); https://doi.org/10.1117/12.2304862.5783256510001.
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