27 April 2020Density functional theory based bandstructure analysis of graphene-HgCdTe heterostructure mid-wave infrared detector for Earth science applications (Conference Presentation)
Samiran Gangulyhttps://orcid.org/0000-0002-6632-1574,1 Sheikh Z. Ahmed,1 Avik W. Ghosh,1 Ashok K. Sood,2 John Zeller,2 Parminder Ghuman,3 Sachidananda Babu,3 Nibir K. Dhar4
1Univ. of Virginia (United States) 2Magnolia Optical Technologies, Inc. (United States) 3NASA Earth Science Technology Office (United States) 4U.S. Army Night Vision & Electronic Sensors Directorate (United States)
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Graphene-HgCdTe heterostructure based mid wave IR (MWIR) detectors are being designed for NASA Earth Science applications. Combining Density Functional Theory (DFT) based calculations of the bandstructure with carrier generation and transport model of this detector, we study the essential physics of this novel detector design and project its performance. Combining the best of both these materials can yield high performance and superior detection capabilities.
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Samiran Ganguly, Sheikh Z. Ahmed, Avik W. Ghosh, Ashok K. Sood, John Zeller, Parminder Ghuman, Sachidananda Babu, Nibir K. Dhar, "Density functional theory based bandstructure analysis of graphene-HgCdTe heterostructure mid-wave infrared detector for Earth science applications (Conference Presentation)," Proc. SPIE 11388, Image Sensing Technologies: Materials, Devices, Systems, and Applications VII, 1138803 (27 April 2020); https://doi.org/10.1117/12.2559001