PEROVSKITE-BASED X-RAY IMAGE DETECTOR
    63.
    发明公开

    公开(公告)号:US20230161057A1

    公开(公告)日:2023-05-25

    申请号:US17908722

    申请日:2021-03-04

    CPC classification number: G01T1/24 C09D11/52 C09D11/037 C09D11/033 C09D11/106

    Abstract: A direct conversion x-ray detection apparatus having a planar x-ray detection layer having a detection layer upper surface and a detection layer lower surface, the planar x-ray detection layer including a lead halide perovskite material; a top electrode layer above the detection layer upper surface; a bottom electrode layer below the detection layer lower surface and in conductive communication with the top electrode layer through the x-ray detection layer to apply a bias voltage across the x-ray detection layer; and a blocking layer between the x-ray detection layer and the top electrode layer to inhibit a dark current, the blocking layer including a polymer selected from the group comprising polyacrylates, polyimides, polyamides, polysulfones, polystyrenes, and polycarbonates.

    Dielectric resonator antenna arrays

    公开(公告)号:US10784583B2

    公开(公告)日:2020-09-22

    申请号:US15105294

    申请日:2014-12-19

    Abstract: Arrays of low permittivity Polymer-based Resonator Antenna elements with different configurations. Individual array elements can be fabricated with complicated geometries; these elements can be assembled into complicated patterns as a single monolithic fabricated structure using narrow wall connecting structures, which removes the requirement to position and assemble the array elements. Monolithic array structures can be assembled as sub-arrays in larger array structures. Elements, sub-arrays, and arrays can also be formed by inserting dielectric materials into cavities defining their lateral geometries, and fabricated in polymer templates. The polymer templates can be removed or retained to function as part of the antenna. Effective excitation is achieved by one of a number of coupling methods, including standing metal strip feeding on the vertical sides of the elements, feeding by tall metal transmission lines in contact or in close proximity to the vertical sides of the elements, modified microstrip feeding, or aperture feeding by using a slot in the metal plane underneath the elements. The wideband array feeds are realized by optimized transmission line distribution networks which include wideband matching sections.

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