General Electric Company

Kwang Hyup An

Jie Jerry Liu

Gautam Parthasarathy

Aaron Judy Couture

Ri-an Zhao

James Edward Pickett

William Andrew Hennessy

Guatam Parthasarathy

A process for fabricating an organic x-ray detector is presented. The process includes forming a layered structure that includes disposing a first electrode layer on a thin film transistor array, disposing an organic photoactive layer on the first electrode layer and disposing a second electrode layer on the organic photoactive layer. The organic photoactive layer includes a fullerene or a fullerene derivative having a carbon cluster of at least 70 carbon atoms. The process further includes disposing a scintillator layer on the layered structure at a temperature greater than 50 degrees Celsius. An organic x-ray detector fabricated by the process is further presented. An x-ray system including the organic x-ray detector is also presented.

Processes for fabricating organic X-ray detectors, related organic X-ray detectors and systems

A process for fabricating an organic x-ray detector is presented. The process includes forming a multilayered structure that includes disposing a first electrode layer on a thin film transistor array, disposing an organic absorber layer on the first electrode layer, and disposing a second electrode layer on the organic absorber layer. The process further includes disposing a scintillator layer on the second electrode layer and thermally treating the multilayered structure after the step of disposing the second electrode layer. An organic x-ray detector fabricated by the process is further presented. An x-ray system including the organic x-ray detector is also presented.

Processes for fabricating organic x-ray detectors, related x-ray detectors and systems

A method for packaging an organic photodetector includes providing a multilayer structure disposed on a portion of a substrate to form the organic photodetector; providing a casing having at least one wall and an open end, wherein the casing includes at least one aperture in at least one wall; sealing the open end of the casing with the substrate to enclose the multilayer structure in a volume such that the least one aperture is located in a path of radiation to an inactive region of the organic photodetector; evacuating the volume through the at least one aperture; and closing the at least one aperture after evacuating the volume to form a detector package. The multilayer structure includes a thin film transistor (TFT) array, an organic photodiode disposed on the TFT array, and a scintillator layer disposed on the organic photodiode. An imaging system including the detector package is also presented.

Packaging organic photodetectors

An organic x-ray detector is presented. The organic x-ray detector includes a layered structure. The layered structure includes a thin-film transistor (TFT) array disposed on a substrate, an organic photodiode disposed on the TFT array, and a scintillator layer disposed on the organic photodiode. The organic x-ray detector includes an encapsulation cover at least partially encapsulating the layered structure. The organic x-ray detector further includes at least one of a moisture getter layer and an oxygen getter layer disposed proximate to the organic photodiode, and in the path of an x-ray radiation incident on the layered structure. X-ray system including the organic x-ray detector is also presented.

Organic x-ray detector and x-ray systems

An organic x-ray detector is presented. The organic x-ray detector includes a layered structure. The layered structure includes a thin-film transistor (TFT) array disposed on a substrate, an organic photodiode disposed on the TFT array, and a scintillator layer disposed on the organic photodiode. The organic x-ray detector further includes an encapsulation cover at least partially encapsulating the layered structure; and an oxygen getter layer disposed between the organic photodiode and the encapsulation cover, wherein the oxygen getter layer includes an ether-containing material. X-ray system including the organic x-ray detector is also presented.

Organic X-ray detector and X-ray systems

A radiation detector assembly including an organic photodetector that generate charge in response to an incident radiation, a thin film transistor array including a plurality of pixels. The plurality of pixels may produce electric signals corresponding to the charge generated by the organic photodetector. The radiation detector assembly also includes a spacer disposed on the thin film transistor array. The spacer surrounds one or more pixels and may confine the organic photodetector within the surrounded one or more pixels such that the surrounded one or more pixels are electrically isolated from a neighboring pixel.

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Rexford, NY, United States of America

Kwang Hyup An