Abstract: The present invention relates to organic electroluminescent devices comprising a light-emitting layer B comprising a host material, a phosphorescence material and a emitter material, which exhibits a narrow—expressed by a small full width at half maximum (FWHM)—green emission at an emission maximum of 500 to 560 nm. Further, the present invention relates to a method for generating green light by means of an organic electroluminescent device according to the present invention.

Abstract: The present invention relates to organic electroluminescent devices comprising a light-emitting layer B comprising two host materials, a n-type (electron-transporting) and a p-type (hole-transporting) host material, a thermally activated delayed fluorescence (TADF) material and an emitter material, which exhibits a narrow—expressed by a small full width at half maximum (FWHM)—deep-blue emission at an emission maximum of 440 to 475 nm. Further, the present invention relates to a method for generating blue light by means of an organic electroluminescent device according to the present invention.

Abstract: The present invention relates to organic electroluminescent devices comprising a light-emitting layer B comprising a host material, a phosphorescence material and a emitter material, which exhibits a narrow—expressed by a small full width at half maximum (FWHM)—green emission at an emission maximum of 500 to 560 nm. Further, the present invention relates to a method for generating green light by means of an organic electroluminescent device according to the present invention.

Abstract: An organic molecule is disclosed having a structure with: a first chemical unit having a structure of formula A1 at least one second chemical unit having a structure of formula D with #=point of attachment of the second chemical unit to the first chemical unit; RN is a structure of the formula N1 with §=point of attachment of the chemical unit of formula N1 to the first chemical unit.

Abstract: The present invention relates to a an organic electroluminescent device comprising a light-emitting layer B comprising a host material HB, a first thermally activated delayed fluorescence (TADF) material EB, and a second TADF material SB, wherein EB transfers energy to SB and SB emits TADF with an emission maximum between 420 and 500 nm.

Abstract: The present invention relates to a an organic electroluminescent device comprising a light-emitting layer B comprising a host material HB, a first thermally activated delayed fluorescence (TADF) material EB, and a second TADF material SB, wherein SB transfers energy to EB and EB emits TADF with an emission maximum between 420 and 500 nm.

Abstract: The present invention relates to organic electroluminescent devices comprising a light-emitting layer B comprising a host material HB, a first thermally activated delayed fluorescence (TADF) material EB, and a depopulation agent SB.

Abstract: The present invention relates to organic electroluminescent devices comprising a light-emitting layer B comprising two host materials, a n-type (electron-transporting) and a p-type (hole-transporting) host material, a thermally activated delayed fluorescence (TADF) material and an emitter material, which exhibits a narrow—expressed by a small full width at half maximum (FWHM)—deep-blue emission at an emission maximum of 440 to 475 nm. Further, the present invention relates to a method for generating blue light by means of an organic electroluminescent device according to the present invention.

Abstract: The present invention relates to a an organic electroluminescent device comprising a light-emitting layer B comprising a host material HB, a first thermally activated delayed fluorescence (TADF) material EB, and a second TADF material SB, wherein EB transfers energy to SB and SB emits TADF with an emission maximum between 420 and 500 nm.

Abstract: The present invention relates to a an organic electroluminescent device comprising a light-emitting layer B comprising a host material HB, a first thermally activated delayed fluorescence (TADF) material EB, and a second TADF material SB, wherein SB transfers energy to EB and EB emits TADF with an emission maximum between 420 and 500 nm.

Abstract: The present invention relates to a an organic electroluminescent device comprising an exciton quenching layer C located between the a light-emitting layer B and an electron-transport layer D, wherein the exciton quenching layer C comprises at least one emitter EC and at least 80% by weight of at least one electron transport material ETMD.

Abstract: The present invention relates to a light-emitting layer B comprising a first emitter compound (a) having a non-exited state S0(a), a first excited singlet state S1(a) and a first excited triplet state T1(a); a second emitter compound (b) having a non-exited state S0(b), a first excited singlet state S1(b) and a first excited triplet state T1(b), wherein the energy level of S1(a) is higher than that of S1(b), the energy level of S1(b) is higher than that of T1(b) and wherein the rate of reverse intersystem crossing from T1(a) to S1(a) is higher than the rate of excition energy transfer from S1(a) to S1(b) and/or the rate of excition energy transfer from T1(a) to T1(b), and/or wherein the energy level of T1(b) is higher than that of T1(a). Further, the present invention also refers to an opto-electronic device comprising such light-emitting layer B and use thereof.