✦ LIBER ✦

Picosecond time-resolved fluorescence from vibrationally unrelaxed perylene: Limiting relaxation rates in the statistical limit

✍ Scribed by Bruce P. Boczar; Michael R. Topp

Publisher: Elsevier Science
Year: 1984
Tongue: English
Weight: 625 KB
Volume: 108
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(84)85186-6

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✦ Synopsis

LIMITING RELAXATION RATES IN THE STATISTICAL LIMIT .~\n intcnsc. tunable picusecond laser scurce hs been used for sckctivc excitation of vibronic bsnds of pe&cne in jrficprunc crysr;lls ncilr 4 K. 3leasurernents ofreson~ncc Iluoresccncc signals show relssttion times to have limiting vnlucs near 45 ps ;11 vibrutiona1 crterpirs above about 2000 cm-' _ At lower energies, the duration of rcsonnnce fluorescence signals spprars to bc consiltcrably shorter, indicating the probable involvclncnt of intenul vibralional modes of the 1wpt;tnc mntris.