Hole-burning in the amorphous and in the crystalline local environment of an n-hexadecane Shpol'skiĭ matrix

✍ Scribed by P. Geissinger; S. Reul; D. Haarer; K.E. Rieckhoff

• Book ID: 103033623
• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 462 KB
• Volume: 190
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(92)86104-p

✦ Synopsis

The dye tetra-Ctert-butyl phthalocyanine, incorporated into an n-hexadecane Shpol'ski~ matrix, was investigated using holeburning spectroscopy. At T= 1.5 K, a series of spectral holes was burnt into the absorption spectrum, using experimental parameters of earlier measurements on the same hole-burning dye in polymer matrices. The maximum hole-depth and, thus, the quantum yield of the photochemical reaction follows the absorption of the amorphous background, showing no significant deviation in the region of the dominant Shpol'skii line. Reducing the time scale of the hole-burning detection scheme, however, revealed spectral holes in the Shpol'skii line with an extrapolated width of 2 1 MHz. The hole decay time constant of about 40 s was verified with fluorescence measurements.