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Heterojunction lasers based on Pb/sub 1-x/Sn/sub x/Te and prepared by ''instantaneous'' evaporation in vacuum

Journal Article · · Sov. Phys. - Semicond. (Engl. Transl.); (United States)
OSTI ID:5838598

The method of ''instantaneous'' evaporation in vacuum was used in the fabrication of heterojunction lasers based on Pb/sub 1-x/Sn/sub x/Te and characterized by one-sided confinement in the spectral range 9--16 ..mu... Heterostructures were formed by growing epitaxial n-type indium-doped (x=0.14, 0.18) or bismuth-doped (x=0.20) films on p-type thallium-doped PbTe substrates. Low-temperature epitaxy (< or approx. =350 /sup 0/C) was used to prepare also undoped n-type Pb/sub 0.88/Sn/sub 0.12/Te films on undoped p-type PbTe substrates. The threshold current density was optimized by varying the thickness of the active region and the majority-carrier density in this region.

Research Organization:
P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
OSTI ID:
5838598
Journal Information:
Sov. Phys. - Semicond. (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Semicond. (Engl. Transl.); (United States) Vol. 13:5; ISSN SPSEA
Country of Publication:
United States
Language:
English