Abstract
The W-band (95 GHz) ODMR spectra of AgCl nanocrystals (NCs) embedded in a KCl single crystal lattice have been measured for various orientations of the magnetic field in a {100} crystal plane. Only self-trapped exciton (STE) signals are observed while no ODMR is found from distant electron-hole pairs. This confirms the conclusion of a previous ODMR study in the Q-band (at 35 GHz) concerning the spatial confinement effect and impurity exclusion on exciton recombination in NCs of AgCl. Through increased resolution, more accurate g- and zero-field splitting values of the triplet state were obtained in good agreement with those of the STE in bulk AgCl.
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