Temperature dependence of the stimulated emission in a conjugated polymer

Ch Spiegelberg, N. Peyghambarian, B. Kippelen

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Photoluminescence and stimulated emission measurements on poly(2,5-bis(2′-ethylhexyloxy)-1,4-phenylenevinylene) show only a slight thermal-dependence on the threshold for spectral line narrowing. Done between 15 and 300 K, the measurements showed a decrease in threshold intensity at lower temperatures, which can be mainly attributed to an increase in quantum efficiency. This deviation from the expected behavior for a four-level system is assigned to the dominant inhomogeneous broadening.

Original languageEnglish (US)
Pages (from-to)748-750
Number of pages3
JournalApplied Physics Letters
Volume75
Issue number6
DOIs
StatePublished - Aug 9 1999

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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