
Proceedings Paper
Colloidal quantum dots for low-cost MWIR imagingFormat | Member Price | Non-Member Price |
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Paper Abstract
Monodisperse suspensions of HgTe colloidal quantum dots (CQD) are readily synthesized with infrared
energy gaps between 3 and 12 microns. Infrared photodetection using dried films of these CQDs has
been demonstrated up to a wavelength of 12 microns, and HgTe CQD single-elemnet devices with 3.6
micron cutoff have bee nreported nad show ogod absorption <(10^4 cm^-1), response time and
detectivity (2*10^10 Jones) at at emperature of 175 K; with the potential fo uncooled imaging. The
synthesis of CQDs and fabrication of detector devices employ bench-top chemistry techniques, leading
to the potential for rapid, wafer-scale manufacture of MWIR imaging devices with low production costs
and overhead. The photoconductive, photovoltaic and optical properties of HgTe CQD films will be
discussed relative to infrared imaging, along with recent achievements in integrating CQD films with
readout integrated circuits to produce CQD-based MWIR focal plane arrays.
Paper Details
Date Published: 20 May 2016
PDF: 9 pages
Proc. SPIE 9819, Infrared Technology and Applications XLII, 981919 (20 May 2016); doi: 10.1117/12.2234734
Published in SPIE Proceedings Vol. 9819:
Infrared Technology and Applications XLII
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; Paul R. Norton, Editor(s)
PDF: 9 pages
Proc. SPIE 9819, Infrared Technology and Applications XLII, 981919 (20 May 2016); doi: 10.1117/12.2234734
Show Author Affiliations
Anthony J. Ciani, Sivananthan Labs., Inc. (United States)
Richard E. Pimpinella, Sivananthan Labs., Inc. (United States)
Richard E. Pimpinella, Sivananthan Labs., Inc. (United States)
Christoph H. Grein, Univ. of Illinois at Chicago (United States)
Philippe Guyot-Sionnest, James Franck Institute (United States)
Philippe Guyot-Sionnest, James Franck Institute (United States)
Published in SPIE Proceedings Vol. 9819:
Infrared Technology and Applications XLII
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; Paul R. Norton, Editor(s)
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