1 - 25 of 3
Number of results to display per page
CreatorTitleDescriptionSubjectDate
1 Vardeny, Zeev ValentinePhotogeneration and recombination processes of neutral and charged excitations in films of a ladder-type poly(para-phenylene)We introduce a version of the cw photomodulation technique, measured far from the steady state, for obtaining the quantum efficiency, η, of long-lived photoexcitations in p-conjugated polymers. We apply this technique to films of a ladder-type poly(para-phenylene) [mLPPP] for studying the photoge...Photogeneration; Recombination process; Neutral excitations; Charged excitations; Ladder-type poly(para-phenylene)1999-08
2 Vardeny, Zeev ValentineMechanism for photogeneration of charge carriers in polyacetyleneIn light of new experimental observations, a mechanism for the photogeneration of charge carriers in trans-polyacetylene is presented. By way of introduction, we discuss the qualitative changes in the picture of charged-soliton photogeneration that are expected due to the inclusion of electron corre...Photogeneration; Charge carriers; Photocarriers1984-07
3 Vardeny, Zeev ValentinePhotogeneration action spectroscopy of neutral and charged excitations in films of ladder-type poly(para-phenylene)The photogeneration quantum efficiency action spectra of long-lived neutral and charged excitations in films of a ladder-type poly(para-phenylene) were measured. We found that both triplet and polaron action spectra show, in addition to a step function increase at the optical gap, a monotonic rise a...Photogeneration; Neutral excitations; Charged excitations; pi-conjugated polymers; Transient spectroscopy1999-04
1 - 25 of 3