EXCITED TERMINAL STATES OF A BOUND EXCITON-DONOR COMPLEX IN ZNO

The excited terminal states of a bound exciton-donor complex in ZnO have been investigated. Using an electron effective mass of 0.19me, a good theoretical fit to the experimental data was achieved. A donor ionization energy of 0.035 eV was calculated from the effective-mass approximation. Experimentally, the donor ground-state binding energy is 0.052 eV, determined on the assumption that the n=2 excited state is effective-mass-like. An electron g value of 1.95 and a hole g value of 1.2 were determined for the ground state from Zeeman studies. © 1969 The American Physical Society.