Membrane-perovskite films, devices, and methods of preparation
AssigneeThe University of North Carolina at Chapel Hill
InventorsJinsong Huang, Jingjing Zhao
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Abstract
The present disclosure is directed to a composite film, comprising one or more layers, each layer comprising: i. a porous membrane comprising interconnected channels; and ii. a radiation sensitive material comprising a plurality of crystals, wherein the plurality of crystals are embedded in interconnected channels of said porous membrane. In certain embodiments, the radiation sensitive material is perovskite. Methods for producing the composite films and integrating the films onto read out circuitry for digital X-ray imaging are additionally described.
Claims17
A multilayer composite film, comprising two or more layers,
- wherein, each layer comprises:
- i. a porous membrane comprising interconnected channels;
- and
- ii. a radiation sensitive material comprising a plurality of crystals,
- wherein the plurality of crystals are embedded in the interconnected channels of said porous membrane;
- wherein said porous membrane and said radiation sensitive material in each adjacent layer are the same or different to those of any other layer;
- and said multilayer composite film is continuous;
- and
- wherein at least a portion of the interconnected channels of two adjacent layers of the multilayer composite film are connected.
A method of preparing a multilayer continuous composite film comprising two or more layers, said method comprising:
- a) passing a radiation sensitive material precursor solution through a porous membrane comprising interconnected channels, wherein one or more crystals of the radiation sensitive material are retained in the interconnected channels of said porous membrane;
- wherein a) is carried out two or more times to prepare said two or more layers;
- wherein said radiation sensitive material precursor solution and said porous membrane in adjacent layers are the same or different;
- and
- b) compressing said two or more layers to prepare said continuous composite film,
- wherein at least a portion of the interconnected channels of two adjacent layers of said continuous composite film are connected.
Dependencies are inferred from the claim text.