abstract |
The invention relates to a composition comprising at least one neutral organic luminescent compound and at least one ionic compound, characterized in that the organic luminescent compound has a gap S 1 - T 1 between the lowest triplet state T 1 and the first excited singlet state S 1 of less than or equal to 0.15 eV. The invention further relates to a light-emitting electrochemical cell comprising the composition. |