Photophysical oled - - increase in efficiency

摘要

A light emitting device comprising(i) an anode(ii) a cathode(iii) an emitter layer, which is disposed between and in direct or indirect contact with the anode and cathode and at least one metal complex, optionally in combination with a matrix comprises,characterized by the,that the metal complex comprises at least a completely deuterated ligands or that the matrix is completely deuterated.