Nonradiative and Radiative Recombination in Lead Chalcogenides

Publisher Website
Google Scholar
Abstract
In a wide range of temperature and doping level the small signal lifetime for Auger recombination, spontaneous emission of radiation, and for spontaneous emission of plasmons is calculated in the compounds Pb0.78Sno. 22Te and Pb0.91Sno0.09Se. In the calculation degeneracy of the carrier gas and anisotropy of band structure is taken into account. At donor concentrations ND > 1019 cm−3, recombination by emission of plasmons dominates. For ND < 5 ×1016 cm−3 radiative recombination dominates in Pb0.78. Sno22Se up to temperatures TL < 180 K, in Pb0.09Se, however, up to 230 K.