TY  - GEN
AU  - Staroske,W
AU  - Pfeiffer,M
AU  - Leo,K
AU  - Hoffmann,M
TI  - Single-step triplet-triplet annihilation: an intrinsic limit for the high brightness efficiency of phosphorescent organic light emitting diodes
SN  - 0031-9007
PY  - 2007///0831
N1  - Publication Type: Journal Article; Research Support, Non-U.S. Gov't
UR  - https://doi.org/10.1103/PhysRevLett.98.197402
ER  -