Novel flexible sensor array integrated with a Flex
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AbstractA team steeped in military electro-optical systems, flexible displays, and printed inorganic electronics proposes to prototype a flexible UV through short-wavelength infrared (SWIR) detector array, fabricated from solution using a novel set of flexible, transparent doped metal oxide semiconductors. The detector arrays will be implemented on the team's ISO-qualified roll-to-roll flexible display manufacturing line. The conductors will be patterned on a pre-strained substrate in a herringbone/wishbone pattern for maximum flexibility. An n-doped ZTO anode will be nanoembossed with high-aspect-ratio features to increase flex and provide more surface area for the 5-nm PbS nanocrystal absorbers. This will allow 100% quantum efficiency from 400 to 2100 nm and background-limited performance (BLIP). The detector is already relatively mature, and the Phase I effort will be to integrate the detector materials in p- and n-doped metal oxide flexible circuits - ranging from simple passively addressed TFT circuits to 3T and dual-state omp-amp circuits - using all-inorganic materials. The Phase I platform will be designed to integrate the existing NC detector technology into a 320 x 240-element, 4" diagonal detector array. Attention will be paid during the program to integrating commercial driver sets and DC-DC converters developed for existing bistable electrophoretic displays.
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