Creator | Title | Description | Subject | Date | ||
---|---|---|---|---|---|---|
1 | Vardeny, Zeev Valentine | Film morphology and photophysics of polyfluorene | We have studied the interplay between photophysics and film morphology of poly(9,9-dioctyl)fluorene (PFO) using a variety of optical probes. Upon slowly warming a spin-cast PFO film from 80 to 300 K, a fraction of the sample is transformed into a different solid phase, the ß phase. Absorption and e... | Polyfluorene; Photophysics; Film morphology | 2000-12 | |
2 | Vardeny, Zeev Valentine | Nonlinear optical spectroscopy of excited states in polyfluorene | We used a variety of nonlinear optical (NLO) spectroscopies to study the singlet excited-state order and primary photoexcitations in polyfluorene, an important blue-emitting ∏-conjugated polymer. The polarized NLO spectroscopies include ultrafast pump-probe photomodulation in a broad spectral rang... | pi-conjugated polymers; Polyfluorene; Photoexcitations | 2007-03 |