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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
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Lupton, John Mark | Efficient dipole-dipole coupling of Mott-Wannier and Frenkel excitons in (Ga,In)N quantum well/polyfluorene semiconductor heterostructures | We investigate interactions between Mott-Wannier (MW) and Frenkel excitons in a family of hybrid structures consisting of thin organic (polyfluorene) films placed in close proximity (systematically adjusted by GaN cap layer thickness) to single inorganic [(Ga, In)N/GaN] quantum wells (QWs). Charac... | Mott-Wannier; Frenkel; Excitons; Dipole-dipole coupling; Semiconductor heterostructures | 2007-07 |
| 2 |
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Vardeny, Zeev Valentine; Ehrenfreund, Eitan A. | Illumination-induced metastable polaron-supporting state in poly(p-phenylene vinylene) films | We found an illumination-induced metastable polaron-supporting state in films of a soluble derivative of poly-p-phenylene vinylene (MEH-PPV). Pristine, nonilluminated MEH-PPV polymer films do not show longlived photogenerated polarons. Prolonged UV illumination, however, is found to induce a revers... | Metastable polaron-supporting state; Poly(p-phenylene vinylene); PPV; MEH-PPV; Excitons | 2007-07 |
| 3 |
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Mishchenko, Eugene; Raikh, Mikhail E. | Smearing of the two-dimensional Kohn anomaly in a nonquantizing magnetic field: implications for interaction effects | Thermodynamic and transport characteristics of a clean two-dimensional interacting electron gas are shown to be sensitive to the weak perpendicular magnetic field even at temperatures much higher than the cyclotron energy, when the quantum oscillations are completely washed out. We demonstrate this ... | Kohn anomaly; Tunnel density of states | 2007-07 |
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