Photoreflectance characterization of cualse2hétéroépitaxial layers grown by metalorganic chemical vapor deposition

  title={Photoreflectance characterization of cualse2h{\'e}t{\'e}ro{\'e}pitaxial layers grown by metalorganic chemical vapor deposition},
  author={Sho Shirakata and Shigefusa F. Chichibu and S. Matsumoto and Shigehiro Isomura},
Photoreflectance (PR) has been developed as a useful technique for the characterization of chalcopyrite heteroepitaxial layers. PR measurements at 77 K have been done on CuAlSe2 layers grown on GaAs and GaP substrates by means of the low-pressure metalorganic chemical vapor deposition technique. The analysis of the PR spectra in terms of transition energy, intensity and broadening parameter has led us to the successful characterization of the crystal quality, stress and the crystallographic… CONTINUE READING