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Two-photon excitation spectroscopy of phenanthrene singlet states below 50000 cm−1

✍ Scribed by Bernhard Dick; Georg Hohlneicher


Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
530 KB
Volume
97
Category
Article
ISSN
0009-2614

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Location of the lowest even parity excit
✍ C.J. Baker; O.M. Gelsen; D.D.C. Bradley 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 407 KB

We report the two-photon fluorescence excitation spectrum of poly(pphenylenevinylene) over the energy range 1.1-2.0 eV. The onset for two-photon fluorescence excitation is at 1.3 eV with a strong peak near I.475 eV. The peak locates the energy of the lowest even parity excited singlet at 2.95 eV, so