Emission processes in conjugated polymer solutions and thin films

Xiao Long, Andrew Malinowski, Donal D.C. Bradley, Mike Inbasekaran, Edmund P. Woo

Research output: Contribution to journalArticlepeer-review

65 Scopus citations

Abstract

We report a study of the emissive properties of both solutions and thin films of a substituted polyfluorene. Our work, motivated by the observation of emission line narrowing phenomena in conjugated polymer thin films, shows that in solution the polymer acts largely as expected for an organic laser dye. From our results for films and from extrapolations as a function of increasing chromophore concentration in solution we rule out lasing as an explanation of the line narrowing. The possible roles played by superradiant and superfluorescent cooperative emission and by amplified spontaneous emission are discussed. © 1997 Elsevier Science B.V.
Original languageEnglish (US)
JournalChemical Physics Letters
Volume272
Issue number1-2
DOIs
StatePublished - Jun 20 1997
Externally publishedYes

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