Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1674854 | Thin Solid Films | 2005 | 4 Pages |
We studied the photoluminescence characteristics of polycrystalline chalcopyrite AgInTe2. The spectra showed three bands. The first band has the maximum at 1.023 eV, and it has one LO-phonon replica with the energy of 25 meV. The second band has the maximum at 0.959 eV and two phonon replicas with the same LO-phonon energy. The third broad band has the maximum at 0.741 eV. The dependence of the spectra on the temperature and the excitation power were recorded. According to the observed j-shift and thermal quenching, the 0.959 eV band can be assigned to a donor–acceptor pair recombination with the activation energy of 35 meV. Room temperature unpolarised Raman spectrum revealed six peaks. The lines observed at 122, 140, 217, and 266 cm−1 are assigned to A1, E1, or B1, E+B2, and longitudinal optical E modes, respectively.