Fig. 4. (a) EPR spectra of air- and H2-In2O3 at room temperature. (b) EPR spectra of air-In2O3 and H2-In2O3 in N2 atmosphere. Simple schematic model for (c) blue emission in air- and H2-In2O3 (d) donor (D) and passivation (P) originated PL emissions in H2-In2O3. Solid black arrows show non-radioactive transitions and dashed black arrows indicate radiative transitions.
