Photoelectric conversion device, solid-state image pickup unit, and electronic apparatuses having work function adjustment layers and diffusion suppression layers

A photoelectric conversion device comprising:

• an organic photoelectric conversion film;
• a first electrode and a second electrode provided with the organic photoelectric conversion film in between;
• and
• a charge block layer provided between the second electrode and the organic photoelectric conversion film,
• wherein the charge block layer includes
• a work function adjustment layer including a metal element on a side of the organic photoelectric conversion film that is closest to the second electrode, the metal element being adopted to adjust a work function, and
• a first diffusion suppression layer provided between the work function adjustment layer and the organic photoelectric conversion film,
• wherein the first diffusion suppression layer is capable of suppressing diffusion of the metal element,
• wherein the first diffusion suppression layer is made of at least one oxygen-free organic molecule selected from a phenanthroline derivative, a rubrene derivative, an anthracene derivative, a triazine derivative, a perylene derivative, and a tetracyanoquinodimethane derivative,
• wherein the charge block layer further includes a second diffusion suppression layer on the side of the organic photoelectric conversion film that is closest to the second electrode, and
• wherein the second diffusion suppression layer is made of at least one oxygen-free organic molecule selected from a phenanthroline derivative, a rubrene derivative, an anthracene derivative, a triazine derivative, a perylene derivative, and a tetracyanoquinodimethane derivative.

A solid-state image pickup unit provided with a plurality of pixels each of which includes a photoelectric conversion device, the photoelectric conversion device comprising:

• an organic photoelectric conversion film;
• a first electrode and a second electrode provided with the organic photoelectric conversion film in between;
• and
• a charge block layer provided between the second electrode and the organic photoelectric conversion film,
• wherein the charge block layer includes
• a work function adjustment layer including a metal element on a side of the organic photoelectric conversion film that is closest to the second electrode, the metal element being adopted to adjust a work function, and
• a first diffusion suppression layer provided between the work function adjustment layer and the second electrode,
• wherein the first diffusion suppression layer is capable of suppressing diffusion of the metal element to the side of the organic photoelectric conversion film that is closest to the second electrode,
• wherein the first diffusion suppression layer is made of at least one oxygen-free organic molecule selected from a phenanthroline derivative, a rubrene derivative, an anthracene derivative, a triazine derivative, a pervlene derivative, and a tetracyanoquinodimethane derivative.

An electronic apparatus provided with a solid-state image pickup unit, the solid-state image pickup unit being provided with a plurality of pixels each of which includes a photoelectric conversion device, the photoelectric conversion device comprising:

• an organic photoelectric conversion film;
• a first electrode and a second electrode provided with the organic photoelectric conversion film in between;
• and
• a charge block layer provided between the second electrode and the organic photoelectric conversion film,
• wherein the charge block layer includes
• a work function adjustment layer including a metal element on the a side of the organic photoelectric conversion film that is closest to the second electrode, the metal element being adopted to adjust a work function, and
• a first diffusion suppression layer provided between the work function adjustment layer and the second electrode,
• wherein the first diffusion suppression layer is capable of suppressing diffusion of the metal element to the side of the organic photoelectric conversion film that is closest to the second electrode,
• wherein the first diffusion suppression layer is made of at least one oxygen-free organic molecule selected from a phenanthroline derivative, a rubrene derivative, an anthracene derivative, a triazine derivative, a perylene derivative, and a tetracyanoquinodimethane derivative.