Composition for organic electroluminescence element and organic electroluminescence element using the same

本发明公开了一种有机电致发光器件用组合物，其含有具有�环的化合物(A)以及具有二酮基吡咯并吡咯骨架的化合物(B)，以及一种有机电致发光器件，其包含一对由阳极和阴极组成的电极、在电极间形成的含有发光层的一层或一层以上的有机层，并且有机层中的至少一层是由有机电致发光器件用组合物形成。另外，还公开了有机EL器件用组合物，含有化合物(C)，其固态膜的荧光光谱的波峰波长为550nm或更长；以及化合物(D)，在相对于上述化合物(C)含有5重量％的该化合物(D)的固态膜的500～800nm的荧光光谱区域中，在600nm或更短波长部分所占的面积为整体面积的20％或更低。并且，有机EL器件包括由该组合物形成的发光层。 There are disclosed an organic electroluminescent (EL) device composition that includes a compound (A) having a perylene ring and a compound (B) having a diketopyrrolopyrrole skeleton, and an organic EL device that includes a pair of electrodes consisting of an anode and a cathode, and one or more organic, layers including a light-emitting layer formed between the electrodes, at least one of the organic layers being a layer formed from the organic EL device composition. Furthermore, there are disclosed an organic EL device composition that includes a compound (C) having, as a solid film, a fluorescence spectrum peak wavelength of 550 nm or longer, and a compound (D) having, as a solid film in which Compound (D) is contained at 5 wt% in Compound (C), an area at a wavelength of 600 nm or shorter in a fluorescence spectrum region of 500 to 800 nm of 20% or less of the entire area, and an organic EL device including a light-emitting layer formed from this composition.