Optical band gap of the α−mercuric iodide

  title={Optical band gap of the α−mercuric iodide},
  author={A. Ferreira da Silva and Nelson Veissid and Chun Yan An and J. Caetano de Souza and Arac{\'e}lis Ferreira da Silva and P. C. M. A. Farias and Marisa Costa da Cruz},
We investigate by photoacoustic spectroscopy the optical band-gap energy of mercuric iodide, a-HgI*, grown by sublimation in a sealed ampoule. Due to its importance as a detector material operating at ambient temperature, the physical properties of a-HgI, have been recently studied. We found, by two different methods, the band-gap energies E,=2.32 and 2.39 eV, respectively. These results are in good agreement with recent measurements based on reflection and absorption spectra. 

From This Paper

Figures, tables, and topics from this paper.


Publications referenced by this paper.

“ A . Rosencwaig and A . Gersho

  • A. Ferreira da Silva, H. Vargas, N. F. Leite, L. C. Miranda
  • J . Appl . Phys .
  • 1990

Similar Papers

Loading similar papers…