Radiation detector, method of manufacturing radiation detector, and method of manufacturing supporting substrate

A method of manufacturing a supporting substrate employed for a radiation detector of, the type including (a) a scintillator layer comprising a phosphor to convert radiation into visible light, formed on one surface of a supporting substrate, (b) a transparent electrode formed on another surface of the supporting substrate, (c) a photoelectric conversion layer comprising an organic semiconductor material, formed on the transparent electrode, and (d) an upper electrode formed on the photoelectric conversion layer, wherein light collectors to collect the visible light emitted by exposing the scintillator layer to radiation into the photoelectric conversion layer are embedded in the form of a matrix at a position facing the transparent electrode in the supporting substrate, the method of manufacturing the supporting substrate comprising the steps of:

• (a) forming a plurality of through-holes in the form of a matrix so as to pass through from one surface of the supporting substrate to another surface of the supporting substrate, and
• (b) filling a transparent material in the through-holes.

A method of manufacturing a radiation detector of the type including (a) a scintillator layer comprising a phosphor to convert radiation into visible light, formed on one surface of a supporting substrate, (b) a protective film formed on the scintillator layer, (c) a transparent electrode formed on the protective film, (d) a photoelectric conversion layer comprising an organic semiconductor material, formed on the transparent electrode, and (e) an upper electrode formed on the photoelectric conversion layer, the method of manufacturing the radiation detector comprising the step of:

• forming the photoelectric conversion layer, employing a solution in which an electron-accepting organic material and an electron-releasing organic material are dissolved.