Organic electroluminescence device

An organic electroluminescent device, comprising:

• a first electrode;
• a second electrode;
• and
• a light emitting layer interposed between the first electrode and the second electrode, the light emitting layer formed by coating and drying a composition, the composition comprising:
• light emitting material;
• and
• molten salt.

The organic electroluminescent device 17, wherein molten salt is represented by one of Formulae 1 and 2:

• where R1, R2, R3, R4, and R5 are each independently hydrogen, a halogen atom, a carboxyl group, an amino group, a nitro group, a cyano group, a hydroxy group, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C1-C20 silicon containing group, a substituted or unsubstituted C1-C20 fluorine containing group, a substituted or unsubstituted C2-C20 alkenyl group, a substituted or unsubstituted C2-C20 alkynyl group, a substituted or unsubstituted C1-C20 heteroalkyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C7-C30 arylalkyl group, a substituted or unsubstituted C5-C30 heteroaryl group, or a substituted or unsubstituted C3-C30 heteroarylalkyl group;
• and
• X— is halide, borate-based anion, phosphate-based anion, phosphinate-based anion, imide-based anion, sulfonate-based anion, acetate-based anion, sulfate-based anion, cyanate-based anion, thiocyanate-based anion, carbon-based anion, complex anion, or ClO4−;
• and
• where X1 is a substituted or unsubstituted C1-C10 alkylene group, a substituted or unsubstituted C6-C30 arylene group, a substituted or unsubstituted C1-C20 heteroalkylene group, or a substituted or unsubstituted C4-C30 heteroarylene group;
• X2 is sulfonate-based anion, cyanate-based anion, thiocyanate-based anion, and carboxylate-based anion;
• R3, R4, R5 and R6 are each independently hydrogen, a halogen atom, a carboxyl group, an amino group, a nitro group, a cyano group, a hydroxy group, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C1-C20 silicon containing group, a substituted or unsubstituted C1-C20 fluorine containing group, a substituted or unsubstituted C2-C20 alkenyl group, a substituted or unsubstituted C2-C20 alkynyl group, a substituted or unsubstituted C1-C20 heteroalkyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C7-C30 arylalkyl group, a substituted or unsubstituted C5-C30 heteroaryl group, or a substituted or unsubstituted C3-C30 heteroarylalkyl group;
• and
• n is an integer in a range of 50 to 500.

An organic electroluminescent device, comprising:

• a first electrode;
• a second electrode;
• and
• a light emitting layer interposed between the first electrode and the second electrode, the light emitting layer formed by coating and drying a composition, the composition comprising:
• light emitting material;
• and
• molten salt represented by one of Formulae 1 and 2:
• where R1, R2, R3, R4, and R5 are each independently hydrogen, a halogen atom, a carboxyl group, an amino group, a nitro group, a cyano group, a hydroxy group, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C1-C20 silicon containing group, a substituted or unsubstituted C1-C20 fluorine containing group, a substituted or unsubstituted C2-C20 alkenyl group, a substituted or unsubstituted C2-C20 alkynyl group, a substituted or unsubstituted C1-C20 heteroalkyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C7-C30 arylalkyl group, a substituted or unsubstituted C5-C30 heteroaryl group, or a substituted or unsubstituted C3-C30 heteroarylalkyl group;
• and
• X— is halide, borate-based anion, phosphate-based anion, phosphinate-based anion, imide-based anion, sulfonate-based anion, acetate-based anion, sulfate-based anion, cyanate-based anion, thiocyanate-based anion, carbon-based anion, complex anion, or ClO4−;
• and
• where X1 is a substituted or unsubstituted C1-C10 alkylene group, a substituted or unsubstituted C6-C30 arylene group, a substituted or unsubstituted C1-C20 heteroalkylene group, or a substituted or unsubstituted C4-C30 heteroarylene group;
• X2 is sulfonate-based anion, cyanate-based anion, thiocyanate-based anion, and carboxylate-based anion;
• R3, R4, R5 and R6 are each independently hydrogen, a halogen atom, a carboxyl group, an amino group, a nitro group, a cyano group, a hydroxy group, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C1-C20 silicon containing group, a substituted or unsubstituted C1-C20 fluorine containing group, a substituted or unsubstituted C2-C20 alkenyl group, a substituted or unsubstituted C2-C20 alkynyl group, a substituted or unsubstituted C1-C20 heteroalkyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C7-C30 arylalkyl group, a substituted or unsubstituted C5-C30 heteroaryl group, or a substituted or unsubstituted C3-C30 heteroarylalkyl group;
• and
• n is an integer in a range of 50 to 500.