Design of materials for IR detectors using high Z elements for high energy radiation environment

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dc.contributor.authorSaraf, Sonali
dc.contributor.authorCooper, Christopher
dc.contributor.authorSu, Ching Hua
dc.contributor.authorChoa, Fow-Sen
dc.contributor.authorArnold, Bradley
dc.contributor.authorCullum, Brian
dc.contributor.authorSachs, David
dc.contributor.authorDiPaula, Philip
dc.contributor.authorSingh, N. B.
dc.date.accessioned2019-10-01T14:43:15Z
dc.date.available2019-10-01T14:43:15Z
dc.date.issued2019-05-13
dc.descriptionSPIE Defense + Commercial Sensing, 2019, Baltimore, Maryland, United States.en_US
dc.description.abstractThere is a strong need for rad hard and high operating temperature IR detectors for space environment. Heavy metal Selenides (high Z and large density) have been investigated for more than half century for high operating temperature mid wave infrared (MWIR) applications. Most of the efforts have been devoted to make detector arrays on high-resistivity Si substrates for operating wavelengths in the 1.5 to 5.0 μm region using physical vapor transport grown poly crystalline materials. For most of the biological spectral and imaging applications, short wave infrared (SWIR) detectors have shown better performance. Recent growth materials have shown variation in morphology with slight change in growth conditions and hence variation in performance parameters such as bandgap, mobility and resistivity from sample to sample. We have performed growth and optical characterization of binary materials CdSe-PbSe to determine the suitability for IR detector. We have determined bandgap using several theoretical models for different morphologies observed during growth on silicon wafers.en_US
dc.description.sponsorshipThe authors would like to acknowledge the supports of Space Life and Physical Sciences Division, Human Exploration and Operations Mission Directorate, NASA Headquarter. Authors are also grateful to Ron Twist and Richard Brook for their kind help and Northrop Grumman for providing the chemicals for this project.en_US
dc.description.urihttps://www.spiedigitallibrary.org/conference-proceedings-of-spie/10980/109801A/Design-of-materials-for-IR-detectors-using-high-Z-elements/10.1117/12.2516048.full?SSO=1en_US
dc.format.extent8 pagesen_US
dc.genreconference papers and proceedingsen_US
dc.identifierdoi:10.13016/m2ecrx-fseu
dc.identifier.citationSonali Saraf, et.al, Design of materials for IR detectors using high Z elements for high energy radiation environment, Proceedings Volume 10980, Image Sensing Technologies: Materials, Devices, Systems, and Applications VI; 109801A (2019) https://doi.org/10.1117/12.2516048en_US
dc.identifier.urihttps://doi.org/10.1117/12.2516048
dc.identifier.urihttp://hdl.handle.net/11603/14954
dc.language.isoen_USen_US
dc.publisherSPIEen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Computer Science and Electrical Engineering Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Student Collection
dc.relation.ispartofUMBC Chemistry & Biochemistry Department
dc.relation.ispartofUMBC Meyerhoff Scholars Program
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rights© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
dc.subjectDetectoren_US
dc.subjectLead selenideen_US
dc.subjectGrowthen_US
dc.subjectInfrareden_US
dc.subjectVaporen_US
dc.subjectTransporten_US
dc.subjectMorphologyen_US
dc.titleDesign of materials for IR detectors using high Z elements for high energy radiation environmenten_US
dc.typeTexten_US

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