Thermalization of hot electrons in quantum wells

C. H. Yang, Stephen Aplin Lyon

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

We present a new photoluminescence technique for studying hot electron relaxation in quantum wells. Two lasers are used to measure the density of photoexcited electrons at energies well above the thermalized distribution. The method has been used to determine the relaxation rate for hot electrons in a GaAs/Al1-xGaxAs multi-quantum well structure with an electron density of 2.5×1011/cm2. Electrons appear to "bottleneck" in a subband, thermalizing about 10 times more slowly (0.03 eV/ps) at the bottom of the subband than higher up.

Original languageEnglish (US)
Pages (from-to)305-308
Number of pages4
JournalPhysica B+C
Volume134
Issue number1-3
DOIs
StatePublished - Jan 1 1985

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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