| abstract |
(57) [Abstract] [Purpose] Silicon and cadmium sulfide sensors have high red sensitivity, so it is necessary to correct the sensitivity with a filter. Therefore, there is little absorption in the visible region and large absorption in the near infrared region. Materials need to be developed. [Structural effect] Polymeric matrix resin with carboxylic acid, By adding a compound having a phosphoric acid or sulfonic acid group and a required amount of a metal copper compound and uniformly solidifying the compound, an organic material having a small absorption in the visible region and a large absorption in the near infrared region can be obtained. |