Image sensors and electronic devices

An image sensor, comprising:

• a color filter array;
• a first photoelectric conversion device configured to absorb first light that is a portion of light passing through the color filter array and convert the absorbed first light into first electrical signals;
• and
• a second photoelectric conversion device configured to absorb second light that is at least a portion of light passing through both the color filter array and the first photoelectric conversion device and convert the absorbed second light into second electrical signals,
• wherein the first photoelectric conversion device includes
• a first electrode and a second electrode facing each other, and
• a first photoelectric conversion layer between the first electrode and the second electrode, the first photoelectric conversion layer configured to selectively absorb a first mixed light of a first color and a second color,
• wherein the second photoelectric conversion device includes
• a third electrode and a fourth electrode facing each other, and
• a second photoelectric conversion layer between the third electrode and the fourth electrode, the second photoelectric conversion layer configured to absorb light including a third color,
• wherein each color of the first color, the second color, and the third color is one of three primary colors,
• wherein the first color, the second color, and the third color are different from each other, and
• wherein the image sensor is configured to combine the first electrical signals converted from the first photoelectric conversion device and the second electrical signals converted from the second photoelectric conversion device to obtain electrical signals of the first color, the second color, and the third color.