Site-selective non-linear spectroscopy of pentacene: p-terphenyl
β Scribed by J.K. Steehler; J.C. Wright
- Book ID
- 103026332
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 538 KB
- Volume
- 115
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Site-selective spectroscopy is demonstrated for both parametric and non-parametric four-wave non-linear mixing in the pentacene: p-terphenyx system where there are four unique substitutional sites. The linesfiapes show the ctiierent interference effects expecled for parametric versus non-parametric methods.
π SIMILAR VOLUMES
The fluorescence lifetime of single pentacene molecules in the 0, site of pterphenyl at a temperature of 1.8 K has been measured. Individual molecules were repetitively excited by monochromatic Fourier transform limited light pulses with a duration of 9 ns. The time-correlated single-photon counting
Dlsperjtvc cohcrcnt Stokes-RamIn scattcrmg (CSRS) e\perunents on pentacene dtmers m p-terphrnyl were performed to locate the corresponding smfly cwited. delocalized. duncr levels. In addnlon the CSRS technique was used to locale the doubly exited dlmer stxc Future evpenments explonng the dynamics oi
We investigated pentacenedoped pterphenyl crystals with different degrees of disorder as evidenced by the inhomogeneous broadening of the O,-site distribution. Single pentacene molecules were detected in the wings of 0, by fluorescence excitation spectroscopy. The ISC rates for a number of single mo
The srtc srlcction polarizarion technique can be employed fo establish dire& the symmetries of the individual vibron-K b.ulds in emission spectra of organic radicals. This is dlustrated by an investigation of the p-\ylyl and duo 1 radicals.