Patent ID: 6300612
Filing Date: 2001-10-09
Classification: B82Y,H01L,Y02E

Abstract:
A sensing element capable of sensing more than one wavelength of light comprisinga. a substrate;b. a first electrode disposed on the substrate;c. a first layer of a first photoactive organic material having an optical band gap corresponding to a first of the more than one wavelengths disposed on a first portion of the first electrode;d. a transparent second electrode disposed on the layer of first photoactive organic material, said first electrode, first layer of first photoactive organic material and said second electrode making up a first sensor capable of generating an electrical signal when light of the first wavelength is incident upon said first sensor;e. a second layer of a second photoactive organic material having an optical band gap corresponding to a second of the more than one wavelengths disposed on a second portion of the first electrode;f. a transparent third electrode disposed on the layer of second photoactive organic material, said first electrode, said layer of second photoactive organic material and said third electrode making up a second sensor capable of generating an electrical signal when light of the second wavelength is incident upon said second sensor,wherein the first photoactive organic material and the second photoactive organic material are conjugated semiconducting polymer materials.