Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
54 (1989), S. 653-655
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Recombination of quasi-two-dimensional (2D) free-electron-hole pairs in PbTe/(Pb,Eu)Te multiple quantum wells has been studied in time-resolved photoluminescence experiments in the 4–5 μm region on subnanosecond scale by an infrared upconversion method. Over a finite temperature range, the recombination rate is seen to vary approximately as 1/T, as expected for a radiative process in a nondegenerate 2D carrier gas. A model is presented where the recombination is enhanced by the presence of a substantial background hole density in the PbTe wells, generated in a manner analogous to modulation doping.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.100908
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