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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 | Liu, Feng | (BAl12)Cs: a cluster-assembled solid | First-principles calculations on the geometry and stability of AlnBm clusters have been carried out to examine the effect of size, composition, and electronic-shell filling on their relative stability. It is shown that although Al and B are both trivalent, a BAl12 cluster is more stable than an Al1... | First-principles calculations; (BAl12)Cs; Cluster-assembled; AlnBm clusters | 1997-06 |
| 2 |
 | Vardeny, Zeev Valentine | Electroabsorption spectroscopy of luminescent and nonluminescent ∏-conjugated polymers | We have measured the quadratic electroabsorption (EA) spectrum of a variety of soluble luminescent and nonluminescent p-conjugated polymer films in the spectral range of 1.5-4.5 eV. The luminescent polymers include MEH and DOO derivatives of poly(phenylene-vinylene), poly(phenylene ethylene), and ... | Electroabsorption spectroscopy; pi-conjugated polymers | 1997-12 |
| 3 |
 | Vardeny, Zeev Valentine | Optical absorption in the substituted phenylene-based conjugated polymers: theory and experiment | We investigate theoretically and experimentally the effects of (2,5) chemical substitution on the optical absorption in the phenylene-based conjugated polymers. Theoretically, substitution destroys both the charge-conjugation symmetry and spatial symmetry that characterize the unsubstituted materia... | Phenylene-based conjugated polymers; Optical absorption; Chemical substitution; Coulomb correlated models | 1997-01 |
| 4 |
 | Vardeny, Zeev Valentine | Ring microlasers from conducting polymers | We demonstrate pulsed, photopumped multimode laser emission in the visible spectral range from cylindrical microcavities formed by conducting polymer thin films deposited around optical fibers. The laser is characterized by narrow emission lines (~1.5 cm-1), a well-defined excitation threshold, an... | Ring microlasers; Laser emission; Waveguided ring modes; Whispering gallery modes | 1997-08 |
| 5 |
 | Vardeny, Zeev Valentine | Spin and spectral signatures of polaron pairs in ∏-conjugated polymers | We have studied polaron pair photoexcitations in a variety of p-conjugated polymer films by photoinduced absorption (PA) and optically detected magnetic resonance (ODMR). Both luminescent and nonluminescent polymers have been studied. An exchange interaction between polarons broadens their magneti... | Spin signatures; spectral signatures; Photoinduced absorption; Photoexcitation | 1997-08 |
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