Heating of photoexcited electron-hole plasma in II--VI compounds
Journal Article
·
· Sov. Phys. - JETP (Engl. Transl.); (United States)
OSTI ID:5935775
We investigate the heating of a nonequilibrium electron-hole plasma (EHP) that emits in the spectral region h..nu..>E/sub g/, in the crystals ZnTe, ZnSe, ZnS, CdTe, CdSe, and CdS in the case of high-power surface photoexcitation (T = 77 K). It is observed that with increasing excitation level the effective temperature of the nonequilibrium carriers saturates. A quantitative analysis of the power balance equation with allowance for the electron (hole)-phonon, electron-electron (hole), and electron-plasmon interactions, as well as the appearance of a characteristic anisotropic photoheating of the EHP in oriented CdSe and CdS crystals leads to the conclusion that at excitation densities on the order of 10/sup 24/ cm/sup -2/xsec/sup -1/ the hot EHP is localized at the depth of penetration of the exciting light into the crystal.
- OSTI ID:
- 5935775
- Journal Information:
- Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 56:3; ISSN SPHJA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
656001* -- Condensed Matter Physics-- Solid-State Plasma
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CADMIUM COMPOUNDS
CADMIUM SELENIDES
CADMIUM SULFIDES
CADMIUM TELLURIDES
CHALCOGENIDES
ENERGY-LEVEL TRANSITIONS
EXCITATION
HEATING
INORGANIC PHOSPHORS
PHOSPHORS
PLASMA
PLASMA HEATING
SELENIDES
SELENIUM COMPOUNDS
SOLID-STATE PLASMA
SULFIDES
SULFUR COMPOUNDS
TELLURIDES
TELLURIUM COMPOUNDS
ZINC COMPOUNDS
ZINC SELENIDES
ZINC SULFIDES
ZINC TELLURIDES
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CADMIUM COMPOUNDS
CADMIUM SELENIDES
CADMIUM SULFIDES
CADMIUM TELLURIDES
CHALCOGENIDES
ENERGY-LEVEL TRANSITIONS
EXCITATION
HEATING
INORGANIC PHOSPHORS
PHOSPHORS
PLASMA
PLASMA HEATING
SELENIDES
SELENIUM COMPOUNDS
SOLID-STATE PLASMA
SULFIDES
SULFUR COMPOUNDS
TELLURIDES
TELLURIUM COMPOUNDS
ZINC COMPOUNDS
ZINC SELENIDES
ZINC SULFIDES
ZINC TELLURIDES