Comment on "Control of magnetic-field effect on electro-luminescence in Alq3-based organic light emitting diodes"

In a recently published paper by [Odaka, Appl. Phys. Lett. 88, 123501 (2006)], the authors explain their experimental observations of a weak magnetic field effect on electroluminescence from Alq3 -based light emitting diodes by the magnetic field-induced evolution of singlet-to-triplet spin conversion of loosely bound electron-hole pairs, suggesting the originality of their explanation. ©