Raman and photoluminescence spectra of PPV oligomers

S. C. Graham, D. D.C. Bradley, R. H. Friend, C. Spangler

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Abstract

Raman and photoluminescence (PL) measurements have been made on a series of KBr pellet samples of poly(1,4-phenylene vinylene) (PPV) oligomers. The PL shows a large red-shift with increasing chain lenght, and its energy converes to that of the polymer for chains containing six phenyl rings. In contrast, Raman-active vibrations show very small shifts with increasing chain length. © 1991.
Original languageEnglish (US)
JournalSynthetic Metals
Volume41
Issue number3
DOIs
StatePublished - May 6 1991
Externally publishedYes

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