Photodetector and electronic apparatus

A photodetector, comprising:

• a first photoelectric conversion element that photoelectrically converts light;
• a first readout circuit including a first transistor provided on a side of a first surface of a first semiconductor layer, the first readout circuit being configured to output a first signal based on electric charge obtained by conversion by the first photoelectric conversion element;
• a second photoelectric conversion element that photoelectrically converts light;
• a second readout circuit including a second transistor provided next to the first transistor on the side of the first surface of the first semiconductor layer, the second readout circuit being configured to output a second signal based on electric charge obtained by conversion by the second photoelectric conversion element;
• and
• an insulator provided, in the first semiconductor layer, between the first transistor and the second transistor.

An electronic apparatus, comprising:

• an optical system;
• and
• a photodetector that receives light transmitted through the optical system, wherein the photodetector includes
• a first photoelectric conversion element that photoelectrically converts light,
• a first readout circuit including a first transistor provided on a side of a first surface of a first semiconductor layer, the first readout circuit being configured to output a first signal based on electric charge obtained by conversion by the first photoelectric conversion element,
• a second photoelectric conversion element that photoelectrically converts light,
• a second readout circuit including a second transistor provided next to the first transistor on the side of the first surface of the first semiconductor layer, the second readout circuit being configured to output a second signal based on electric charge obtained by conversion by the second photoelectric conversion element, and
• an electric conductor provided between the first transistor and the second transistor.