Light-emitting device

A light-emitting device comprising:

• a first electrode comprising a first surface;
• a porous layer provided on the first surface of the first electrode;
• a second electrode comprising a second surface, the second surface facing the porous layer;
• and
• an electrolyte provided between the porous layer and the second surface of the second electrode, the electrolyte electrically contacting the first electrode and the second electrode, and the electrolyte containing a luminous dye,
• wherein either the first electrode or second electrode is formed of a metal-containing substrate.

A light-emitting device comprising:

• a film container;
• a first electrode provided in the container and comprising a first surface;
• a second electrode comprising a second surface;
• and
• an electrolyte containing:
• a luminous dye;
• and a molten salt including an anion component and a cation component having a structure represented by the following formula (A), the electrolyte provided between the first surface of the first electrode and the second surface of the second electrode, the electrolyte electrically contacting the first electrode and the second electrode.

A light-emitting device comprising:

• a film container;
• a first electrode provided in the film container and comprising a first surface;
• a porous layer provided on the first surface of the first electrode;
• a second electrode comprising a second surface, the second surface facing the porous layer;
• and
• an electrolyte provided between the porous layer and the second surface of the second electrode, the electrolyte electrically contacting the first electrode and the second electrode, and the electrolyte containing a luminous dye,
• wherein either the first electrode or second electrode is formed of a metal-containing substrate.