| Numéro |
J. Phys. IV France
Volume 129, October 2005
|
|
|---|---|---|
| Page(s) | 245 - 248 | |
| DOI | https://doi.org/10.1051/jp4:2005129050 | |
J. Phys. IV France 129 (2005) 245-248
DOI: 10.1051/jp4:2005129050
Determination of a quantum efficiency of A
-B
compounds on the basis of photoacoustic spectra
M. Malinski1, L. Bychto1 and J. Zakrzewski2 1 Technical University of Koszalin, ul. Sniadeckich 2, 75-328 Koszalin, Poland
2 Uniwersytet Mikolaja Kopernika, ul. Grudziadzka 5/7, 87-100 Torun, Poland
Abstract
The method of determination of the quantum efficiency
of irradiative relaxation processes in semiconductors is introduced and
discussed. The correlation of the amplitude photoacoustic spectra in the
high absorption region with the annealing process is used to estimate the
values of . The values of , both for as grown and annealed crystals were
determined and have been discussed. The results are presented for microphone
and piezoelectric detection methods.
© EDP Sciences 2005