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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Advanced Functional and Structural Thin Films and Coatings
Presentation Title In-situ Mapping of Local Orientation and Strain in a Fully Operable Infrared Sensor Using Dark Field X-ray Microscopy
Author(s) Can Yildirim, Philippe Ballet, Patrice Gergaud, Francois Boulard, Tao Zhou, Raphael Pesci, Tobias Schulli, Nicolas Baier, Thanh Nguyen, Brellier Delphine
On-Site Speaker (Planned) Can Yildirim
Abstract Scope Hybridized focal plane array HgCdTe (MCT) sensors are the workhorse of high performance infrared detectors covering a broad range of applications from space investigation to gas monitoring. Here we dark-field X-ray microscopy (DFXM) to map the structural variations of a fully operable MCT sensor at temperatures down to 80 K. We report, for the first time, on the nanoscale structural evolution over a large population of photodiodes at operating temperatures with high spatial and angular resolution. Our results show that lattice distortion and strain in the MCT epilayer increases at lower temperatures. The FWHM values of the rocking curves reach up to 0.02 at 80 K, three times higher than the room temperature value. The thermal cycle results show that the thermal effects are almost completely reversible and the measure strain is in the elastic regime. We discuss the origin of the temperature-generated structural modifications using complimentary finite element modelling.
Proceedings Inclusion? Planned:
Keywords Electronic Materials, Characterization, Other

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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A-5: The Design of Coatings Developed Using Polyetherimide and Nanocomposites Thereof for Corrosion Protection of Base Metals
A-6: The Effect of Additives in Hybrid Zr-based Chemical Conversion Coating on the Surface Morphology Chemical Compositions and Corrosion Resistance
A-7: Tribocorrosion Performance of Polymer-derived Ceramic Coatings on 304 Stainless Steel
Application of Mg/Al2O3 and Mg/SiO2 Nanolaminates for Uniform and Controlled Corrosion of Biodegradable Implants
Bandgap Emission of Czochralski-silicon Coated with Spin-coated Silica Using Various Catalysis
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Effect of Oxygen Partial Pressure and Pulse Frequency on the Structure and Properties of Tungsten Incorporated Ga2O3 Films made by Pulsed Laser Deposition
Effects of Femtosecond Laser Shock Peening on the Tribocorrosion Resistance of Biodegrade WE43 Magnesium Alloys
Ellipsometry Characterization of Plasmonic Responses of Nanoparticles
Fifty Shades of TiN: How Deposition Conditions Influence the Growth Morphology and Thereby Hardness and Especially Fracture Toughness
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In-situ Mapping of Local Orientation and Strain in a Fully Operable Infrared Sensor Using Dark Field X-ray Microscopy
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