Effects of spin-polarized injection and photo-ionization of MnZnO film on GaN-based light-emitting diodes

Lung‐Chien Chen, Ching‐Ho Tien, Chien-Sheng Mu

Optics Express · 2010 · 10 citations · 13 references

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Abstract

This study discusses the effect of spin-polarized injection and photo-ionization on MnZnO films formed on the surface of GaN-based light-emitting diodes (LEDs). In a magnetic field, the optical output power of GaN-based LEDs increased by about 60% and 50% at injection currents of 20 and 100 mA, respectively. Spin-polarized injection from a MnZnO film and photo-ionization in GaN-based LED can efficiently improve the optical output power of a GaN-based LED. At forward bias of 3.4 V, the forward current of GaN-based LED with MnZnO film in a magnetic field of 0.5 T includes an injection current of 33.71 mA, spin-polarized current of 0.97 mA, and photo-ionized current of 0.4 mA.

References

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