Organic photoelectronic device and image sensor including selective light transmittance layer

An image sensor comprising:

• a first photo-sensing device sensing light in a first wavelength region;
• a second photo-sensing device sensing light in a second wavelength region on the first photo-sensing device;
• and
• a third photo-sensing device sensing light in a third wavelength region on the second photo-sensing device,
• wherein the third photo-sensing device includes a first light-transmitting electrode at a light incidence side, a second light-transmitting electrode facing the first light-transmitting electrode, a photoactive layer between the first light-transmitting electrode and the second light-transmitting electrode and selectively absorbing light in a green wavelength region, and at least one selective light transmittance layer between the first light-transmitting electrode and the photoactive layer, the at least one selective light transmittance layer including HATCN (1,4,5,8,9,11-hexaazatriphenylene hexacarbonitrile).

An image sensor comprising:

• a first photo-sensing device sensing light in a first wavelength region;
• a second photo-sensing device sensing light in a second wavelength region on the first photo-sensing device;
• and
• a third photo-sensing device sensing light in a third wavelength region on the second photo-sensing device,
• wherein the third photo-sensing device includes a first light-transmitting electrode at a light incidence side, a second light-transmitting electrode facing the first light-transmitting electrode, a photoactive layer between the first light-transmitting electrode and the second light-transmitting electrode and selectively absorbing light in a green wavelength region, and at least one selective light transmittance layer between the first light-transmitting electrode and the photoactive layer, the at least one selective light transmittance layer including HATCN (1,4,5,8,9,11-hexaazatriphenylene hexacarbonitrile), and
• the second photo-sensing device includes a first light-transmitting electrode at a light incidence side, a second light-transmitting electrode facing the first light-transmitting electrode, and a photoactive layer interposed between the first light-transmitting electrode and the second light-transmitting electrode and absorbing light in the second wavelength region, the second wavelength region including at least one of a blue wavelength region and a red wavelength region.

An organic image sensor having a plurality of pixel portions on a substrate, the organic image sensor comprising:

• a plurality of first pixel electrodes spaced apart from each other and corresponding to a number of the plurality of pixel portions on the substrate;
• a photoactive continuous film layer on and between the plurality of first pixel electrodes, including an organic light-absorbing material configured to sense light in a visible light region, and shared by the plurality of pixel portions;
• a second pixel continuous layer electrode on the photoactive continuous film layer, shared by the plurality of pixel portions, and at a light incidence side;
• and
• a plurality of selective light transmittance layers corresponding to a part of the plurality of pixel portions between the second pixel electrode and the photoactive continuous film layer, wherein the part of the plurality of pixel portions is configured to sense a green wavelength region, and wherein each of the plurality of selective light transmittance layers includes HATCN (1,4,5,8,9,11-hexaazatriphenylene hexacarbonitrile).

An organic image sensor comprising:

• a first light-transmitting electrode at a light incidence side;
• a plurality of second light-transmitting electrodes facing the first light-transmitting electrode;
• an organic photoactive layer between the first light-transmitting electrode and the plurality of second light-transmitting electrodes;
• a plurality of selective light transmittance layers between the first light-transmitting electrode and the organic photoactive layer;
• and
• a plurality of charge storages electrically connected to the plurality of second light-transmitting electrodes,
• wherein the plurality of selective light transmittance layers include at least two different types which selectively transmit different wavelength regions of light and the plurality of selective light transmittance layers comprise HATCN (1,4,5,8,9,11-hexaazatriphenylene hexacarbonitrile).

An organic image sensor comprising:

• a first light-transmitting electrode at a light incidence side;
• a second light-transmitting electrode facing the first light-transmitting electrode;
• a first organic photoactive layer between the first light-transmitting electrode and the second light-transmitting electrode;
• a selective light transmittance layer between the first light-transmitting electrode and the first organic photoactive layer;
• a plurality of third light-transmitting electrodes under the second light-transmitting electrode;
• a plurality of fourth light-transmitting electrodes under the plurality of third light-transmitting electrodes;
• a plurality of second organic photoactive layers between the plurality of third light-transmitting electrodes and the plurality of fourth light-transmitting electrodes;
• a plurality of charge storage devices under the plurality of fourth light-transmitting electrodes and electrically connected to one of the second light-transmitting electrode and the plurality of fourth light-transmitting electrodes;
• and
• a metal wiring layer under the plurality of fourth light-transmitting electrodes,
• wherein the selective light transmittance layer includes HATCN (1,4,5,8,9,11-hexaazatriphenylene hexacarbonitrile).