Gain Spectrum for the In4Se3 Crystal with a Non-Standard Dispersion Law of Charge Carriers |
| D.M. Berchaa, b, K.E. Glukhovb and M. Sznajdera
aInstitute of Physics, University of Rzeszów, Rejtana 16a, 35-310 Rzeszów, Poland bInstitute of Physics and Chemistry of Solid State, Uzhgorod National University, Ukraine |
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| Based upon the ab initio band structure calculations results and the density of states function of the orthorhombic In4 Se3 crystal as well as the experimental data concerning its radiative recombination, it was shown that the Bernard-Durafour condition is fulfilled for this crystal. The absorption coefficient α that exhibits a negative value in the given energy range and for the given concentrations of non-equilibrium charge carriers, was calculated. |
| DOI: 10.12693/APhysPolA.119.720 PACS numbers: 71.20.-b, 71.20.Nr, 72.40.+w, 78.20.Ci |