Figure 2: Magnetic field effects in a TFB:F8BT LED.
From: Control of exciton spin statistics through spin polarization in organic optoelectronic devices
(a) Fractional change in EL as a function of magnetic field under constant biases at various temperatures, as indicated in the figure. The bias voltages are chosen to give a current density of ~4 × 10−4 mA cm−2 at zero magnetic field. The black curves are fits to the model described in the text. (b) Fractional change in EL as a function of magnetic field at 3 K under various bias voltages. The black curves are fits to the model described in the text. (c) MC at 3 K under various bias voltages. (d) Fractional change in EL as a function of current density at 8.7 T at various temperatures. Here the current density is the zero-field value, and the device is under constant bias voltage during the measurement.
