Full text loading...
PL spectra at of undoped and P-doped ZnO, showing the existence of a violet luminescence band at in the P-doped sample.
(a) Integrated intensity of the transition as a function of the laser excitation intensity. The triangles are the experimental data points and the solid line is the fit using a power law. (b) Energy shift of the transition as a function of the excitation intensity. (c) Power dependence of the transition on the phosphorus concentration. The triangles are experimental data points and the solid line is the fit using a power law.
Temperature dependent measurement of the integrated intensity of the DA transition.
Evolution of the luminescence of P-doped ZnO as a function of the annealing temperature . The violet band is entirely quenched at .
Effect of the phosphorus concentration on the energy position, energy shift, intensity of the DA transition, and on the activation energy of the acceptor.
Article metrics loading...