title: Effects of spin-polarized injection and photo-ionization of MnZnO film on GaN-based light-emitting diodes.
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.
authors.affiliation: Department of Electro-optical Engineering, National Taipei University of Technology, Taipei 106, Taiwan. ocean@ntut.edu.tw
authors.forename: Lung-Chien
authors.initials: LC
authors.lastname: Chen
authors.forename: Ching-Ho
authors.initials: CH
authors.lastname: Tien
authors.forename: Chien-Sheng
authors.initials: CS
authors.lastname: Mu