Observation of Second-Generation Nonequilibrium Phonons in Highly Photoexcited CdS Microcrystals

• Authors: G. Kurilc̆ik , M. Strumskis , S. Jurs̆ėnas , A. Z̆ukauskas
• Languages of publication: EN

Abstracts

EN

Luminescence kinetics of nonthermalized electron-hole plasma in highly excited CdS microcrystals embedded in glass was studied at T=295 K using two pump pulses technique. The observed carrier kinetics shows additional increase in the effective temperature during the pump pulse as a result of the prepump pulse. The increase is shown to be produced by a fusion of long-lived second-generation nonequilibrium phonons generated by the prepump pulse. The experimental results are in good agreement with a model of hot electron-hole plasma energy relaxation with a build-up of two generations of nonequilibrium phonons.

Keywords

EN

63.20.Kr; 78.47.+p; 78.55.Et

Discipline

• 78.55.Et: II-VI semiconductors

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1996
• Volume: 90
• Issue: 5
• Pages: 875-878

Dates

published

1996-11

Contributors

author

G. Kurilc̆ik

• Institute of Materials Science and Applied Research, Vilnius University Naugarduko 24, Vilnius 2006, Lithuania

author

M. Strumskis

• Institute of Materials Science and Applied Research, Vilnius University Naugarduko 24, Vilnius 2006, Lithuania

author

S. Jurs̆ėnas

• Institute of Materials Science and Applied Research, Vilnius University Naugarduko 24, Vilnius 2006, Lithuania

author

A. Z̆ukauskas

• Institute of Materials Science and Applied Research, Vilnius University Naugarduko 24, Vilnius 2006, Lithuania

Identifiers

DOI

10.12693/APhysPolA.90.875