Excitons in AgCl

We report the absorption spectrum of AgCl sheet single crystals up to photon energies of about 5.5 eV. The present results do not confirm the existence of the peak reported in the literature previously and currently attributed to direct excitons. Instead, a structure similar to that already known to be present in the "tail" of the fundamental absorption of large AgCl single crystals is also found at energies up to about 4.1 eV.