The observation of the excimer formation process in pyrene and perylene crystals using a picosecond ruby laser and streak camera
- 15 October 1978
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 69 (8) , 3570-3574
- https://doi.org/10.1063/1.437062
Abstract
The rise curves of fluorescence from the excimer excitons in pyrene and perylene crystals were observed with the use of the equipment for fluorescence lifetime measurements in the picosecond region. The time constants of excimer formation in pyrene and perylene crystals at 293 and 77 K were found to be considerably shorter than 20 ps. From this result and the previously reported hopping time of excitons in pyrene crystal (20 ps) at room temperature, it is concluded that the sum of the time constants for conformational change of an energy-donating pair and excimer-energy transfer is about 20 ps.Keywords
This publication has 7 references indexed in Scilit:
- Excimer and Monomer Defect Emissions of Perylene and Pyrene Crystals as Studied by the Nanosecond Time-resolved Spectroscopy TechniqueBulletin of the Chemical Society of Japan, 1972
- Energy transfer in crystalline layers of pyreneChemical Physics Letters, 1970
- ‘Excimer’ fluorescence - IX. Lifetime studies of pyrene crystalsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1966
- 'Excimer’ fluorescence. IV. Solution spectra of polycyclic hydrocarbonsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1964
- The Electronic Spectra of Aromatic Molecular Crystals. II. The Crystal Structure and Spectra of PeryleneBulletin of the Chemical Society of Japan, 1963
- Radiative Life-time of the Pyrene Dimer and the Possible Role of Excited Dimers in Energy Transfer ProcessesNature, 1960
- Ein Konzentrationsumschlag der Fluoreszenz.Zeitschrift für Physikalische Chemie, 1954