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CreatorTitleDescriptionSubjectDate
1 Vardeny, Zeev Valentine; Ehrenfreund, Eitan A.Excitation dynamics in disubstituted polyacetyleneWe studied the excitation dynamics in films of disubstituted polyacetylene, a degenerate ground-state conjugated polymer, using psec transient and steady-state spectroscopies. The polymer is found to support charged and neutral topological soliton excitations concurrent with a strong intrinsic p...Excitation dynamics; Disubstituted polyacetylene; Laser action1999-05
2 Vardeny, Zeev ValentineExcitation dynamics in single molecular crystals of α-hexathiophene from femtosecond to millisecondWe identify odd- and even-parity states and measure transient photomodulation spectra of Frenkel excitons in a-hexathiophene single crystals. The lowest Frenkel excitons are characterized by a stimulated emission band at ~2 eV and an absorption band at 1.3 eV. Intramolecular internal conversion go...Excitation dynamics; alpha-hexathiophene; Frenkel excitons; pi-conjugated polymers; Photoexcitation2001-04
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